criyle/codenet-compile-errors huggingface dataset:
Language: Java

import java.util.Scanner;

public class Main{
  public static void Main(String[] args){
    int A = input.nextInt();
    int B = input.nextInt();

    System.out.println(Math.max(A + B, Math.max(A - B, A * B)));
  }
}

Compiler output:
Main.java:5: error: cannot find symbol
    int A = input.nextInt();
            ^
  symbol:   variable input
  location: class Main
Main.java:6: error: cannot find symbol
    int B = input.nextInt();
            ^
  symbol:   variable input
  location: class Main
2 errors
Language: Java

import java.util.Scanner;

public class Main{
  public static void Main(String[] args){
    int A = input.nextInt();
    int B = input.nextInt();

    System.out.println(Math.max(A + B, Math.max(A - B, A * B))):
  }
}

Compiler output:
Main.java:8: error: ';' expected
    System.out.println(Math.max(A + B, Math.max(A - B, A * B))):
                                                               ^
1 error
Language: Java

import java.util.Scanner;

public class Main{
  public static void Main(String[] args){
    int A = input.nextInt();
    int B = input.nextInt();

    System.out.println(Math.max(A + B, Math.max(A - B, A * B)):
  }
}

Compiler output:
Main.java:8: error: ')' or ',' expected
    System.out.println(Math.max(A + B, Math.max(A - B, A * B)):
                                                              ^
1 error
Language: C++

nt main()
{
    int A, B;
    int sum, sub, mul;
    int ans;

    cin >> A >> B;
    sum = A + B;
    sub = A - B;
    mul = A * B;

    if (sum >= sub) {
        if (sum >= mul) {
            ans = sum;
        }
        else 
            ans = mul;
    }
    else {
        if (sub >= mul) {
            ans = sub;
        }
        else 
            ans = mul;
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc:1:1: error: 'nt' does not name a type; did you mean 'int'?
    1 | nt main()
      | ^~
      | int
Language: C

#define _CRAT_SECURE_NO_WARNINGS
#include<stdio.h>

int main()
{
    int a, b;

    if(a>=0 && b>=0){

        if(a*b > a+b){
            printf("%d", a*b);
        }
        else{
            printf("%d", a+b);
        }
    }

    else if(a<0){
            printf("%d", a+b);
        }

    else if(b<0){
            printf("%d", a-b);
        }
    }

    else if(a<0 && b<0){
        printf("%d", a*b);
    }

    return 0;
}

Compiler output:
main.c:27:5: error: expected identifier or '(' before 'else'
   27 |     else if(a<0 && b<0){
      |     ^~~~
main.c:31:5: error: expected identifier or '(' before 'return'
   31 |     return 0;
      |     ^~~~~~
main.c:32:1: error: expected identifier or '(' before '}' token
   32 | }
      | ^
Language: Java

import java.util.*;
public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int C = A + B;
    C = Math.max(max, A - B);
    C = Math.max(max, A * B);
    System.out.println(C);
  }
}

Compiler output:
Main.java:8: error: cannot find symbol
    C = Math.max(max, A - B);
                 ^
  symbol:   variable max
  location: class Main
Main.java:9: error: cannot find symbol
    C = Math.max(max, A * B);
                 ^
  symbol:   variable max
  location: class Main
2 errors
Language: C++

#include "bits/stdc++.h"
using namespace std;

int main() {
int a = 0, b = 0;
printf("%d\n", max({a+b, a-b, a*b}))
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:37: error: expected ';' before 'return'
    6 | printf("%d\n", max({a+b, a-b, a*b}))
      |                                     ^
      |                                     ;
    7 | return 0;
      | ~~~~~~
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
    long A, B;

    cin >> A, B;

    long p, m, x;
    p = A + B;
    m = A-B;
    x = A*B;
    
    int max = max(p,m);
    max = max(max, x);
    cout<< max << endl;



    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:18: error: 'max' cannot be used as a function
   14 |     int max = max(p,m);
      |               ~~~^~~~~
a.cc:15:14: error: 'max' cannot be used as a function
   15 |     max = max(max, x);
      |           ~~~^~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
  ll A, B;
  cin >> A >> B;
  cout << max(A*B, max(A+B, A-B)) << endl;
  return 0
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:11: error: expected ';' before '}' token
   10 |   return 0
      |           ^
      |           ;
   11 | }
      | ~
Language: C++

#include <iostream>
#include <cmath>
using namespace std; 
int a,b;
int main()
{
	cin >> a >> b;
	int x = a+b;
	int y = a-b;
	int z = a*b;
	cout << max(x,y,z);
	
	return 0;
}

Compiler output:
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:11:13:   required from here
   11 |         cout << max(x,y,z);
      |                 ~~~^~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include<iostream>
#include<cstdio>
using namespace std;

int main()
{
int a,b;
c = a + b;
c = max(c,a - b);
c = max(c,a * b);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:1: error: 'c' was not declared in this scope
    8 | c = a + b;
      | ^
Language: C++

IDENTIFICATION                   DIVISION.
PROGRAM-ID.                      ABC_098_B.
ENVIRONMENT                      DIVISION.
DATA                             DIVISION.
WORKING-STORAGE                  SECTION.
    01 INP    PIC X(10).
    01 maxlen PIC 9(1)  VALUE 2.
    01 cur    PIC 9(2)  VALUE 1.
    01 i      PIC 9(18) VALUE 1.
    01 j      PIC 9(18).
    01 len    PIC 9(2).
    01 ans    PIC Z(8)9.
    01 AB1.
        03 AB11 OCCURS 2.
            05 AB PIC S9(8).
PROCEDURE                        DIVISION.
MAIN.
    ACCEPT INP.

    PERFORM maxlen TIMES

        PERFORM VARYING j FROM cur BY 1
            UNTIL INP(j:1) = SPACE
        END-PERFORM

        COMPUTE len = j - cur

        MOVE INP(cur:len) TO AB(i)

        COMPUTE cur = j + 1

        ADD 1 TO i

    END-PERFORM.

    MOVE FUNCTION MAX(
         AB(1) + AB(2),AB(1) - AB(2),AB(1) * AB(2)) TO ans.

    DISPLAY ans.
    STOP RUN.


Compiler output:
a.cc:1:1: error: 'IDENTIFICATION' does not name a type
    1 | IDENTIFICATION                   DIVISION.
      | ^~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int A,B;
  cin >> A >> B;
  int max = A+B;
  if(A-B>max) max = A-B;
  if(A*B>max) max = A*B;
  cout << max << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:10:23: error: expected '}' at end of input
   10 |   cout << max << endl;
      |                       ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include <cstdio>

int main()
{
	int a, b;
	scanf("%d %d", &a, &b);
	int ans = (a + b) > (a * b) ? (a + b) : (a * b);
	ans = (ans > a - b) ? ans : a - b;
	printf("%d\n", ans);
	return 0;
}
# 2018-06

Compiler output:
a.cc:12:7: error: "-" is not a valid filename
   12 | # 2018-06
      |       ^
Language: C++

#include<stdio.h>
int int main(int argc, char const *argv[]) {
  int a,b,c,d,e;
  scanf("%s %s\n",&a,&b );
  a+b=c;
  a-b=d;
  a*b=e;
  if(a>b&&a>c)printf("%s\n",a );
  else if (b>a&&b>c)printf("%s\n",b );
  else if (c>a&&c>b)printf("%s\n",c );
}


Compiler output:
a.cc:2:1: error: two or more data types in declaration of 'main'
    2 | int int main(int argc, char const *argv[]) {
      | ^~~
Language: C++

include<stdio.h>
int int main(int argc, char const *argv[]) {
  int a,b,c,d,e;
  scanf("%s %s\n",&a,&b );
  a+b=c;
  a-b=d;
  a*b=e;
  if(a>b&&a>c)printf("%s\n",a );
  else if (b>a&&b>c)printf("%s\n",b );
  else if (c>a&&c>b)printf("%s\n",c );
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<stdio.h>
      | ^~~~~~~
Language: C++

include<stdlib.h>
int int main(int argc, char const *argv[]) {
  int a,b,c,d,e;
  scanf("%s %s\n",&a,&b );
  a+b=c;
  a-b=d;
  a*b=e;
  if(a>b&&a>c)printf("%s\n",a );
  else if (b>a&&b>c)printf("%s\n",b );
  else if (c>a&&c>b)printf("%s\n",c );
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<stdlib.h>
      | ^~~~~~~
Language: Java

public class Main { //クラス名はMain
    public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = Integer.parseInt(sc.next());
    int b = Integer.parseInt(sc.next());
    int c1 = a+b;
    int c2 = a-b;
    int c3 = a*b;
    int ans = 0;

    if(c1 >= c2){
        if(c1 >= c3){
        ans = c1;
        } else {
        ans = c3;
        }
    } else {
        if(c2 >= c3){
        ans = c2;
        } else {
        ans = c3;
    }

    System.out.println(ans);
    }
}

Compiler output:
Main.java:26: error: reached end of file while parsing
}
 ^
1 error
Language: C++

#include<iostream>
using namespace std;
int main ()
{
    int a,b,max;
    cin>>a>>b;
    max = a+b;
    if (a-  b = max)
        max = a-b;
    else if (a*b > max)
        max = a*b;
    cout<<max;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: lvalue required as left operand of assignment
    8 |     if (a-  b = max)
      |         ~^~~~
Language: C

main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}

Compiler output:
main.c:1:1: error: return type defaults to 'int' [-Wimplicit-int]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      | ^~~~
main.c: In function 'main':
main.c:1:1: error: type of 'a' defaults to 'int' [-Wimplicit-int]
main.c:1:1: error: type of 'b' defaults to 'int' [-Wimplicit-int]
main.c:1:11: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |           ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
main.c:1:11: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |           ^~~~~
main.c:1:11: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:1:24: error: '$a' undeclared (first use in this function); did you mean 'a'?
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |                        ^~
      |                        a
main.c:1:24: note: each undeclared identifier is reported only once for each function it appears in
main.c:1:27: error: '$b' undeclared (first use in this function); did you mean 'b'?
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |                           ^~
      |                           b
main.c:1:31: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |                               ^~~~~~
main.c:1:31: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:31: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:1:31: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:1:44: error: implicit declaration of function 'fmax' [-Wimplicit-function-declaration]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |                                            ^~~~
main.c:1:1: note: include '<math.h>' or provide a declaration of 'fmax'
  +++ |+#include <math.h>
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
main.c:1:44: warning: incompatible implicit declaration of built-in function 'fmax' [-Wbuiltin-declaration-mismatch]
    1 | main(a,b){scanf("%d%d",$a,$b);printf("%.f",fmax(a*b,fmax(a+b,a-b)));}
      |                                            ^~~~
main.c:1:44: note: include '<math.h>' or provide a declaration of 'fmax'
Language: C++

#include<iostream>
int main(){
using namespace std;
int N,sum,i,l,r,K,m;
cin>>N;
//int a[]={885, 8, 1, 128, 83, 32, 256, 206, 639, 16, 4, 128, 689, 32, 8 ,64 ,885,
//969, 1};
int a[200000};
for(i=0;i<N;i++) cin>>a[i];

sum=0;
for(l=0;l<N;l++){
K=1;m=a[l];
for(r=l+1;r<N;r++){
	if(a[r]&m)break;
 m|=a[r];K++;}
sum+=K;
}
cout<<sum;
return 1;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: expected ']' before '}' token
    8 | int a[200000};
      |             ^
      |             ]
a.cc: At global scope:
a.cc:9:1: error: expected unqualified-id before 'for'
    9 | for(i=0;i<N;i++) cin>>a[i];
      | ^~~
a.cc:9:9: error: 'i' does not name a type
    9 | for(i=0;i<N;i++) cin>>a[i];
      |         ^
a.cc:9:13: error: 'i' does not name a type
    9 | for(i=0;i<N;i++) cin>>a[i];
      |             ^
a.cc:11:1: error: 'sum' does not name a type
   11 | sum=0;
      | ^~~
a.cc:12:1: error: expected unqualified-id before 'for'
   12 | for(l=0;l<N;l++){
      | ^~~
a.cc:12:9: error: 'l' does not name a type
   12 | for(l=0;l<N;l++){
      |         ^
a.cc:12:13: error: 'l' does not name a type
   12 | for(l=0;l<N;l++){
      |             ^
a.cc:19:1: error: 'cout' does not name a type
   19 | cout<<sum;
      | ^~~~
a.cc:20:1: error: expected unqualified-id before 'return'
   20 | return 1;
      | ^~~~~~
a.cc:21:1: error: expected declaration before '}' token
   21 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int a, b;
	cin >> a >> b;
	int c, d, e;
	c=a-b;
	d=a*b;
	e=a+b;
	cout<< max(c, d, e) <<endl;
	return 0;
}

Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:11:12:   required from here
   11 |         cout<< max(c, d, e) <<endl;
      |                ~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
int main()
{
int a,b;
cin>>a>>b;
cout<<max(max(a+b,a-b),a*b)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 | cin>>a>>b;
      | ^~~
      | std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 | cout<<max(max(a+b,a-b),a*b)<<endl;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:6:11: error: 'max' was not declared in this scope; did you mean 'std::max'?
    6 | cout<<max(max(a+b,a-b),a*b)<<endl;
      |           ^~~
      |           std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:6:7: error: 'max' was not declared in this scope; did you mean 'std::max'?
    6 | cout<<max(max(a+b,a-b),a*b)<<endl;
      |       ^~~
      |       std::max
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:6:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 | cout<<max(max(a+b,a-b),a*b)<<endl;
      |                              ^~~~
      |                              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <algorithm>
#include <cstdio>
#include <iostream>
#include <map>
#include <cmath>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#include <bitset>
#include <cstring>
#include <deque>
#include <iomanip>
#include <limits>
#include <fstream>
using namespace std;
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)
#define CLR(mat) memset(mat, 0, sizeof(mat))
typedef long long ll;
int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);
  int a, b;
  cin >> a >> b;
  cout << max(a + b , a - b, a * b) << endl;
  return 0;
}

Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:30:14:   required from here
   30 |   cout << max(a + b , a - b, a * b) << endl;
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: Java

package prcn_plac;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class AddSubMul {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int x = Integer.parseInt(br.readLine());
		int y = Integer.parseInt(br.readLine());

		int[] ary = {x + y, x - y, x * y};
		int max;
		if(ary[0] < ary[1]) {
			max = ary[1];
			max = Math.max(max, ary[2]);
		} else {
			max = ary[0];
			max = Math.max(max, ary[2]);
        }
        System.out.println(max);
	}
}


Compiler output:
Main.java:6: error: class AddSubMul is public, should be declared in a file named AddSubMul.java
public class AddSubMul {
       ^
1 error
Language: C

#include <stdio.h>

int main() {
  int A, B;
  scanf("%d %d", &A, &B);
  if ((A+B) > (A-B)) {
    if ((A/B) > (A+B))
    	printf("%d", A/B);
  else if ((A-B) > (A/B)) {
    if ((A+B) > (A-B))
    	printf("%d", A+B);
  else if ((A/B) > (A+B)) {
    if ((A-B) > (A/B))
    	printf("%d", A-B);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:16:1: error: expected declaration or statement at end of input
   16 | }
      | ^
main.c:16:1: error: expected declaration or statement at end of input
main.c:16:1: error: expected declaration or statement at end of input
Language: C

#define <stdio.h>

int main() {
  int A, B;
  scanf("%d %d", &A, &B);
  if ((A+B) > (A-B)) {
    if ((A/B) > (A+B))
    	printf("%d", A/B);
  else if ((A-B) > (A/B)) {
    if ((A+B) > (A-B))
    	printf("%d", A+B);
  else if ((A/B) > (A+B)) {
    if ((A-B) > (A/B))
    	printf("%d", A-B);
  return 0;
}


Compiler output:
main.c:1:9: error: macro names must be identifiers
    1 | #define <stdio.h>
      |         ^
main.c: In function 'main':
main.c:5:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |   scanf("%d %d", &A, &B);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #define <stdio.h>
main.c:5:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |   scanf("%d %d", &A, &B);
      |   ^~~~~
main.c:5:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:8:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    8 |         printf("%d", A/B);
      |         ^~~~~~
main.c:8:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:8:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:8:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:11:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
   11 |         printf("%d", A+B);
      |         ^~~~~~
main.c:11:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:14:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
   14 |         printf("%d", A-B);
      |         ^~~~~~
main.c:14:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:16:1: error: expected declaration or statement at end of input
   16 | }
      | ^
main.c:16:1: error: expected declaration or statement at end of input
main.c:16:1: error: expected declaration or statement at end of input
Language: C++

#define <stdio.h>

int main() {
  int A, B;
  scanf("%d %d", &A, &B);
  if ((A+B) > (A-B)) {
    if ((A/B) > (A+B))
    	printf("%d", A/B);
  else if ((A-B) > (A/B)) {
    if ((A+B) > (A-B))
    	printf("%d", A+B);
  else if ((A/B) > (A+B)) {
    if ((A-B) > (A/B))
    	printf("%d", A-B);
  return 0;
}

Compiler output:
a.cc:1:9: error: macro names must be identifiers
    1 | #define <stdio.h>
      |         ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'scanf' was not declared in this scope
    5 |   scanf("%d %d", &A, &B);
      |   ^~~~~
a.cc:8:9: error: 'printf' was not declared in this scope
    8 |         printf("%d", A/B);
      |         ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | #define <stdio.h>
a.cc:11:9: error: 'printf' was not declared in this scope
   11 |         printf("%d", A+B);
      |         ^~~~~~
a.cc:11:9: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:14:9: error: 'printf' was not declared in this scope
   14 |         printf("%d", A-B);
      |         ^~~~~~
a.cc:14:9: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
a.cc:9:27: note: to match this '{'
    9 |   else if ((A-B) > (A/B)) {
      |                           ^
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
a.cc:6:22: note: to match this '{'
    6 |   if ((A+B) > (A-B)) {
      |                      ^
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
a.cc:3:12: note: to match this '{'
    3 | int main() {
      |            ^
Language: C

#include <stdio.h>
int main(){
  int a, b;
  int tmp;
  scanf("%d", &a );
  scanf("%d", &b );
  int tmp = a + b;
  
  if ( tmp < a - b){
    tmp = a - b;
  }
  if ( tmp < a * b ){
      tmp = a * b;
  }
  printf( "%d\n", tmp ); 
 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:7: error: redeclaration of 'tmp' with no linkage
    7 |   int tmp = a + b;
      |       ^~~
main.c:4:7: note: previous declaration of 'tmp' with type 'int'
    4 |   int tmp;
      |       ^~~
Language: C

#include <stdio.h>

int main(){
  int a, b;
  int tmp;
  scanf("%d", &a );
  scanf("%d", &b );
  int tmp = a * b;
  
  if ( tmp < a - b){
    tmp = a - b;
  }
  if ( tmp < a * b ){
      tmp = a * b;
  }
  printf( "%d\n", tmp ); 

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:7: error: redeclaration of 'tmp' with no linkage
    8 |   int tmp = a * b;
      |       ^~~
main.c:5:7: note: previous declaration of 'tmp' with type 'int'
    5 |   int tmp;
      |       ^~~
Language: C++

#include<bit/stdc++.h>
using namespace std;
int main()
{
    int a , b;
    cin >> a >> b;

    cout << max(max(a+b,a-b),a*b);
}

Compiler output:
a.cc:1:9: fatal error: bit/stdc++.h: No such file or directory
    1 | #include<bit/stdc++.h>
      |         ^~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
	int a = sc.nextInt();
    int b = sc.nextInt();
    
    max = 0;
    if(max < a * b){
      max = a*b;
    }
    if(max < a - b){
      max = a*b;
    }
    if(max < a + b){
      max = a*b;
    }
  }
}

Compiler output:
Main.java:9: error: cannot find symbol
    max = 0;
    ^
  symbol:   variable max
  location: class Main
Main.java:10: error: cannot find symbol
    if(max < a * b){
       ^
  symbol:   variable max
  location: class Main
Main.java:11: error: cannot find symbol
      max = a*b;
      ^
  symbol:   variable max
  location: class Main
Main.java:13: error: cannot find symbol
    if(max < a - b){
       ^
  symbol:   variable max
  location: class Main
Main.java:14: error: cannot find symbol
      max = a*b;
      ^
  symbol:   variable max
  location: class Main
Main.java:16: error: cannot find symbol
    if(max < a + b){
       ^
  symbol:   variable max
  location: class Main
Main.java:17: error: cannot find symbol
      max = a*b;
      ^
  symbol:   variable max
  location: class Main
7 errors
Language: C

include<stdio.h>
int main()
{
int a,b,c,d,e,ans;
scanf("%d %d",&a,&b);
c=a+b;
d=a-b;
e=a*b;
if(c>d) ans=c;else ans=d;
if(ans<e) ans=e;
printf("%d",ans);
return 0;
}
 



Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: C++

a,b,c,d,e
imput(a,b)
c=a+b
d=a-b
e=a*b
if c>d:
 if c>e:
  print(c)
elif d>e:
 print(d)
else:
 print(e)



Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a,b,c,d,e
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define forx(i, a, b) for (int i = (a); i < (b); i++)
#define rep(j, n) for (int j = 0; j < (n); j++)

typedef long long ll;

int main()
{
   int i=0
   while(i<10000000){
   cout<<i<<endl;
   i++;
     }
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:4: error: expected ',' or ';' before 'while'
   11 |    while(i<10000000){
      |    ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define forx(i, a, b) for (int i = (a); i < (b); i++)
#define rep(j, n) for (int j = 0; j < (n); j++)

typedef long long ll;

int main()
{
   while(i<10000000)
   cout<<i<<endl;
     
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:10: error: 'i' was not declared in this scope
   10 |    while(i<10000000)
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)

int main(void) {
	int a, b; cin >> a >> b;
	cout << max(a + b, a - b, a * b) << endl;
	return 0;
}

Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:10:13:   required from here
   10 |         cout << max(a + b, a - b, a * b) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)

int main(void) {
	int a, b, cin >> a >> b;
	cout << max(a + b, a - b, a * b) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:23: error: expected initializer before '>>' token
    9 |         int a, b, cin >> a >> b;
      |                       ^~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:10:13:   required from here
   10 |         cout << max(a + b, a - b, a * b) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: Java

public class Main {
public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();

    //if(a instanceof int && b instanceof int) {
      if(a <= 1000 && a >= -1000 && b <= 1000 && b >= -1000) {
        int plus = a + b;
        int minus = a - b;
        int kake = a * b;

        if(minus > plus) {
          if(minus > kake) {
            System.out.print(minus);
          } else {
            System.out.print(kake);
          }
        } else {
          if(plus > kake) {
            System.out.print(plus);
          } else {
            System.out.print(kake);
          }
        }
      } else {
        return;
      }
    //} else {
    //  return;
    //}

    sc.close();
  }
}

Compiler output:
Main.java:3: error: cannot find symbol
    Scanner sc = new Scanner(System.in);
    ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
    Scanner sc = new Scanner(System.in);
                     ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

import java.util.Scanner;

public class test {
	public static void main(String args[]) {
		Scanner scan = new Scanner(System.in);
		int len = scan.nextInt();
		String str = scan.next();
		if (str.length() <= 2) {
			if (str.charAt(0) == 'W' && str.charAt(1) == 'E') {
				System.out.println(1);
			} else {
				System.out.println(0);
			}
			return;
		}
		int ans = Integer.MAX_VALUE;
		int cnt = check(str.substring(0, 1), str.substring(2, len));
		char temp = str.charAt(1);
		for (int i = 2; i < len; i++) {
			if (str.charAt(i) == 'E') {
				cnt--;
			}
			if (temp == 'W') {
				cnt++;
			}
			temp = str.charAt(i);
			if (cnt < ans) {
				ans = cnt;
			}
		}
		System.out.println(ans);
	}

	public static int check(String tag1, String tag2) {
		int ans = 0;
		for (int i = 0; i < tag1.length(); i++) {
			if (tag1.charAt(i) == 'W') {
				ans++;
			}
		}
		for (int i = 0; i < tag2.length(); i++) {
			if (tag2.charAt(i) == 'E') {
				ans++;
			}
		}
		return ans;
	}
}

Compiler output:
Main.java:3: error: class test is public, should be declared in a file named test.java
public class test {
       ^
1 error
Language: C++

#include<stdio.h>
 
int main()
{
  int a,b;
  scanf("%d %d",&a,&b);
  int c=a+b;
  int d=a*b;
  int e=a-b;
  int ans=0;
  if(c<d)
    {
      if(d<e)
	{
	  ans=e;
	}
      else
	{
	  ans=d;
	}
    }
  if(c>d)
    {
      if(c<e)
	{
	  ans=e;
	}
      else
	{
	  ans=c;
	}
    }
  printf("%d\n",ans);
  return 0;
}
 
#include<stdio.h>

int main()
{
  int a,b;
  scanf("%d %d",&a,&b);
  int c=a+b;
  int d=a*b;
  int e=a-b;
  int ans=0;
  if(c<d)
    {
      if(d<e)
	{
	  ans=e;
	}
      else
	{
	  ans=d;
	}
    }
  if(c>d)
    {
      if(c<e)
	{
	  ans=e;
	}
      else
	{
	  ans=c;
	}
    }
  printf("%d\n",ans);
  return 0;
}


Compiler output:
a.cc:39:5: error: redefinition of 'int main()'
   39 | int main()
      |     ^~~~
a.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
Language: C++

#include<stdio.h>
 
int main()
{
  int a,b;
  scanf("%d %d",&a,&b);
  int c=a+b;
  int d=a*b;
  int e=a-b;
  int ans=0;
  if(c<d)
    {
      if(d<e)
	{
	  ans=e;
	}
      else
	{
	  ans=d;
	}
    }
  if(c>d)
    {
      if(c<e)
	{
	  ans=e;
	}
      else
	{
	  ans=c;
	}
    }
  printf("%d\n",ans);
  return 0;
}
 
#include<stdio.h>

int main()
{
  int a,b;
  scanf("%d %d",&a,&b);
  int c=a+b;
  int d=a*b;
  int e=a-b;
  int ans=0;
  if(c<d)
    {
      if(d<e)
	{
	  ans=e;
	}
      else
	{
	  ans=d;
	}
    }
  if(c>d)
    {
      if(c<e)
	{
	  ans=e;
	}
      else
	{
	  ans=c;
	}
    }
  printf("%d\n",ans);
  return 0;
}

Compiler output:
a.cc:39:5: error: redefinition of 'int main()'
   39 | int main()
      |     ^~~~
a.cc:3:5: note: 'int main()' previously defined here
    3 | int main()
      |     ^~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
#define Add(A,B) A+B
#define Sub(A,B) A-B
#define Mul(A,B) A*B

int main()
{
	int A, B;
	cin >> A >> B;
	cout << max(Add(A, B), Sub(A, B), Mul(A, B)) << endl;
    return 0;
}

Compiler output:
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:14:13:   required from here
   14 |         cout << max(Add(A, B), Sub(A, B), Mul(A, B)) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define repr(i,k,n) for(int i = (k); i < (n); i++)
#define rep(i,n) repr(i,0,n)
#define ALL(a) begin(a),end(a)
const int INF = 114514810;
const int MOD = 1000000007;
typedef vector<int> vi;
typedef vector<string> vs;
typedef long long ll;
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int A,B;
	cin >> A >> B;
	cout << Cmax({A+B,A-B,A*B}) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:17: error: 'Cmax' was not declared in this scope; did you mean 'fmax'?
   16 |         cout << Cmax({A+B,A-B,A*B}) << endl;
      |                 ^~~~
      |                 fmax
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define repr(i,k,n) for(int i = (k); i < (n); i++)
#define rep(i,n) repr(i,0,n)
#define ALL(a) begin(a),end(a)
const int INF = 114514810;
const int MOD = 1000000007;
typedef vector<int> vi;
typedef vector<string> vs;
typedef long long ll;
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int A,B,C;
	cin >> A >> B;
	C=max(A+B,A-B,A*B);
	cout << C << endl;
}


Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:16:7:   required from here
   16 |         C=max(A+B,A-B,A*B);
      |           ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define repr(i,k,n) for(int i = (k); i < (n); i++)
#define rep(i,n) repr(i,0,n)
#define ALL(a) begin(a),end(a)
const int INF = 114514810;
const int MOD = 1000000007;
typedef vector<int> vi;
typedef vector<string> vs;
typedef long long ll;
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int A,B,C;
	cin >> A >> B;
	C=max(A+B,A-B,A*B);
	cout << (A+B<A*B?A*B:A+B) << endl;
}


Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:16:7:   required from here
   16 |         C=max(A+B,A-B,A*B);
      |           ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define repr(i,k,n) for(int i = (k); i < (n); i++)
#define rep(i,n) repr(i,0,n)
#define ALL(a) begin(a),end(a)
const int INF = 114514810;
const int MOD = 1000000007;
typedef vector<int> vi;
typedef vector<string> vs;
typedef long long ll;
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int A,B,C;
	cin >> A >> B;
	max(A+B,A-B,A*B);
	cout << (A+B<A*B?A*B:A+B) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: warning: ignoring return value of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]', declared with attribute 'nodiscard' [-Wunused-result]
   16 |         max(A+B,A-B,A*B);
      |         ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: declared here
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:16:5:   required from here
   16 |         max(A+B,A-B,A*B);
      |         ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <iostream>

using namespace std;

int main(void){
	int a, b;
	cin >> a >> b;
	int calc[3];
	calc[0] = a+b;
	calc[1] = a-b;
	calc[2] = a*b;
	sort(calc[0],calc[2]);
	cout << calc[2] << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |         sort(calc[0],calc[2]);
      |         ^~~~
      |         short
Language: C++

#include<bit/stdc++.h>
using namespace std;
int main(){
    int a,b;
    cin>>a>>b;
    cout<<max(a+b,max(a-b,a*b))<<endl;
    return 0;
}

Compiler output:
a.cc:1:9: fatal error: bit/stdc++.h: No such file or directory
    1 | #include<bit/stdc++.h>
      |         ^~~~~~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>

int main()
{
	int A, B;
	int max = 0;

	scanf_s("%d%d", &A, &B);

	max = A + B;

	if (max < A - B) {
		max = A - B;
	}
	if (max < A * B) {
		max = A * B;
	}
	printf("%d\n", max);

	

}



Compiler output:
main.c: In function 'main':
main.c:8:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    8 |         scanf_s("%d%d", &A, &B);
      |         ^~~~~~~
      |         scanf
Language: C++

#include <iostream>
#include <algorithm>
usign namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<max(a+b,max(a-b,a*b))<<endl;
}

Compiler output:
a.cc:3:1: error: 'usign' does not name a type
    3 | usign namespace std;
      | ^~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin>>a>>b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   cout<<max(a+b,max(a-b,a*b))<<endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:17: error: 'max' was not declared in this scope; did you mean 'std::max'?
    7 |   cout<<max(a+b,max(a-b,a*b))<<endl;
      |                 ^~~
      |                 std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:7:9: error: 'max' was not declared in this scope; did you mean 'std::max'?
    7 |   cout<<max(a+b,max(a-b,a*b))<<endl;
      |         ^~~
      |         std::max
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:7:32: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   cout<<max(a+b,max(a-b,a*b))<<endl;
      |                                ^~~~
      |                                std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <climits>
#include <regex>
#include <cassert>
#include <functional>
using namespace std;

int main()
{
  long long a, b;
  cin >> a >> b;

  long long sum, def, fix;

  sum = a + b;
  def = a - b;
  fix = a * b;

  long long max = max({sum, def, fix});

  cout << max << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:22: error: 'max' cannot be used as a function
   24 |   long long max = max({sum, def, fix});
      |                   ~~~^~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
	int a,b;
	cin>>a>>b;
	ans=a+b;
	ans=max(ans,a-b);
	ans=max(ans,a*b);
	cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
    7 |         ans=a+b;
      |         ^~~
      |         abs
Language: Java

import java.util.Scanner;

public class Problem098A {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int x, y;
		x = scan.nextInt();
		y = scan.nextInt();

		System.out.println(max(max(x + y,x - y),x * y));

		scan.close();

	}

	public static int max(int x,int y) {
		return x > y ? x : y;
	}

}


Compiler output:
Main.java:3: error: class Problem098A is public, should be declared in a file named Problem098A.java
public class Problem098A {
       ^
1 error
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
#define FOR(i,a,b) for(int (i)=(a);(i)<=(b);(i)++)
#define rep(i,n) FOR(i,0,n-1)
#define int long long


signed main(){
	
	int a,b;cin>>a>>b;
	int ans = max(a+b,a-b);
	ans = max(ans,a*b);
	cout << ans << endl;
	}
}

//cout << ans << endl;

Compiler output:
a.cc:18:1: error: expected declaration before '}' token
   18 | }
      | ^
Language: C++

#include<iostream>

using namespae std;

int main(){
  
  int a,b;
  cin>>a>>b;
  int max=-100000000;
  
  if(a+b>max)max=a+b;
  if(a-b>max)max=a-b;
  if(a*b>max)max=a*b;
  cout<<max<<endl;
  return 0;
}

Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'namespae'
    3 | using namespae std;
      |       ^~~~~~~~
a.cc: In function 'int main()':
a.cc:8:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |   cin>>a>>b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:14:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   14 |   cout<<max<<endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:14:14: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   14 |   cout<<max<<endl;
      |              ^~~~
      |              std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
	int a, b;
	scanf("%d %d", &a, &b);
	printf("%d\n", max(a + b, a - b, a*b));
}

Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:8:20:   required from here
    8 |         printf("%d\n", max(a + b, a - b, a*b));
      |                        ~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <iostream>
#include <algorithm>

int main(void){
  int a,b;
  cin >> a >> b;
  cout << max({a+b, a-b, a*b}) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> a >> b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   cout << max({a+b, a-b, a*b}) << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:11: error: 'max' was not declared in this scope; did you mean 'std::max'?
    7 |   cout << max({a+b, a-b, a*b}) << endl;
      |           ^~~
      |           std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:7:35: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   cout << max({a+b, a-b, a*b}) << endl;
      |                                   ^~~~
      |                                   std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: Java

import java.util.Scanner;

class Main(){
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		
		int res1 = a + b;
		int res2 = a - b;
		int res3 = a * b;
		
		int max_num1 = Math.max(res1, res2);
		int max_num2 = Math.max(max_num1, res3);
		
		System.out.println(max_num2);
	}
}

Compiler output:
Main.java:3: error: '{' expected
class Main(){
          ^
1 error
Language: C++

#include <cstdio>
#include <iostream>
using namespace std;
int main (){
    int a,b;
    int m[3];
    int max;
    cin>>a>>b;
    m[0]=a+b;
    m[1]=a-b;
    m[2]=a*b;
    max=a[0];
    for(int i=0;i<=2;i++)
    {
        if(m[i]>=max){
            max=m[i];
        }
    }
    cout<<max<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: invalid types 'int[int]' for array subscript
   12 |     max=a[0];
      |          ^