criyle/codenet-compile-errors huggingface dataset:
Language: C++

include <iostream>
using namespace std;

int main(){
  int m,n;
  cin >> m >> n;
  cout << (n-1)*(m-1) << endl;
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> m >> n;
      |   ^~~
a.cc:7:3: error: 'cout' was not declared in this scope
    7 |   cout << (n-1)*(m-1) << endl;
      |   ^~~~
a.cc:7:26: error: 'endl' was not declared in this scope
    7 |   cout << (n-1)*(m-1) << endl;
      |                          ^~~~
Language: C++

#include <algorithm>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <sstream>
#include <functional>
#include <map>
#include <string>
#include <cstring>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <list>
#include <numeric>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> P;
const double PI = 3.14159265358979323846;
const double EPS = 1e-12;
const ll INF = 1LL<<29;
const ll mod = 1e9+7;
#define rep(i,n) for(int (i)=0;(i)<(ll)(n);++(i))
#define repd(i,n,d) for(ll (i)=0;(i)<(ll)(n);(i)+=(d))
#define all(v) (v).begin(), (v).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset((m),(v),sizeof(m))
#define chmin(x,y) (x=min(x,y))
#define chmax(x,y) (x=max(x,y))
#define fst first
#define snd second
#define UNIQUE(x) (x).erase(unique(all(x)),(x).end())
template<class T> ostream &operator<<(ostream &os, const vector<T> &v){int n=v.size();rep(i,n)os<<v[i]<<(i==n-1?"":" ");return os;}

int main(){
	cin>>a>>b;
  cout<<(a-1)*(b-1)<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:14: error: 'a' was not declared in this scope
   42 |         cin>>a>>b;
      |              ^
a.cc:42:17: error: 'b' was not declared in this scope
   42 |         cin>>a>>b;
      |                 ^
Language: Java

import java.util.Scanner;

public class Maic {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		
		int a = scanner.nextInt()-1	;
		int b = scanner.nextInt()-1;
		
		int ans = a*b;
		System.out.println(ans);
		
		scanner.close();
	}

}


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

#include<stdio.h>

int main(void)
{
	int n,m;
    scanf("%d%d",&n,&m);
    printf("%d\n"n*m-n-m+1);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:18: error: expected ')' before 'n'
    7 |     printf("%d\n"n*m-n-m+1);
      |           ~      ^
      |                  )
Language: C++

#include<stdio.h>

void main(void) {

	int n;
	int m;
	int ans;

	scanf("%d%d", &n, &m);

	ans = (n - 1)*(m - 1);

	printf("%d",ans);

}

Compiler output:
a.cc:3:1: error: '::main' must return 'int'
    3 | void main(void) {
      | ^~~~
Language: C++

// AKCity.cpp : コンソール アプリケーションのエントリ ポイントを定義します。
//

#include "stdafx.h"
#include<stdio.h>

void main(void) {

	int n;
	int m;
	int ans;

	scanf("%d%d", &n, &m);

	ans = (n - 1)*(m - 1);

	printf("%d",ans);

}

Compiler output:
a.cc:4:10: fatal error: stdafx.h: No such file or directory
    4 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>

int main(void) {
  int a, b;
  std::cin >> a >> b;
  std::cout << (a-1)*(b-1) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:31: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   std::cout << (a-1)*(b-1) << endl;
      |                               ^~~~
      |                               std::endl
In file included from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

#define PrintLn(X) cout << X << endl
int main(void)
{
	int a, b;
	cin >> a >> b;
	PrintLn(((a-1)*(b-1));
	return 0;
}


Compiler output:
a.cc:12:2: error: unterminated argument list invoking macro "PrintLn"
   12 | }
      |  ^
a.cc: In function 'int main()':
a.cc:10:9: error: 'PrintLn' was not declared in this scope
   10 |         PrintLn(((a-1)*(b-1));
      |         ^~~~~~~
a.cc:10:16: error: expected '}' at end of input
   10 |         PrintLn(((a-1)*(b-1));
      |                ^
a.cc:7:1: note: to match this '{'
    7 | {
      | ^
Language: C++

#include<iostream>
    int A,B;
 int main(){
    cin>>A>>B;
    cout<<(A-1)*(B-1);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |     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:5:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    5 |     cout<<(A-1)*(B-1);
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <vector> 
#include <list> 
 #include <map>
 #include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <queue>
using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI  = acos(-1.0);

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

//debug
#define dump(x)  cerr << #x << '=' << (x) << endl;
#define debug(x) cerr << #x << '=' << (x) << '('<<'L' << __LINE__ << ')' << ' ' << __FILE__ << endl;

int main(){
 
int a,b;
cin>>a>>b;
cout(a-1)*(b-1)<<endl;





}


Compiler output:
a.cc: In function 'int main()':
a.cc:74:5: error: no match for call to '(std::ostream {aka std::basic_ostream<char>}) (int)'
   74 | cout(a-1)*(b-1)<<endl;
      | ~~~~^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
int n,m;
cin>>n>>m;
cout<<(n-1)*(m-1)<<endl:
return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:24: error: expected ';' before ':' token
    6 | cout<<(n-1)*(m-1)<<endl:
      |                        ^
      |                        ;
Language: C++

#include <iostream>
#include <algorithm>
#include <array>
#include <math.h>
#include <set>
#include <stdlib.h>
#include <string>
#include <vector>

#define INT_MAX 2000000000
#define MOD 1000000007
#define ll long long
#define rep(i,a,b) for(i = (a); i < (b); i++)
#define bitget(a,b) (((a) >> (b)) & 1)
#define vint vector<int>
#define vsort(x) sort(x.begin(),x.end())

using namespace std;

int main() {

	int i, j, k;
	int n, m;
	cin >> n >> > m;
	cout << (n - 1)*(m - 1) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:21: error: expected primary-expression before '>' token
   24 |         cin >> n >> > m;
      |                     ^
Language: Java

import java.util.Scanner;
//import java.util.Map;
//import java.util.HashMap;

public class TestTest {
	public static void main(String[] args){
		Scanner in = new Scanner(System.in);
		int a = in.nextInt()-1;
		int b = in.nextInt()-1;
		System.out.println(a*b);
	}
}


Compiler output:
Main.java:5: error: class TestTest is public, should be declared in a file named TestTest.java
public class TestTest {
       ^
1 error
Language: C

#inclue <stdio.h>
int main(void){
        int a,b,kakeru;
        scanf("%d %d",&a,&b);
        a--;b--;
        kakeru = a*b;
        printf("%d",kakeru);

        return 0;
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #inclue; did you mean #include?
    1 | #inclue <stdio.h>
      |  ^~~~~~
      |  include
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    4 |         scanf("%d %d",&a,&b);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #inclue <stdio.h>
main.c:4:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    4 |         scanf("%d %d",&a,&b);
      |         ^~~~~
main.c:4:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:7:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    7 |         printf("%d",kakeru);
      |         ^~~~~~
main.c:7:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:7:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:7:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

import java.util.Scanner;

public class Main {

    Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        new Main().compute();
    }

    void compute() {
        System.out.println((scanner.nextInt() - 1) * (scanner.nextInt()) - 1);
    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

int no1, no2;

scanf("%d%d", &no1, &no2);

printf("%d",(no1-1) * (no2 - 1));



Compiler output:
a.cc:3:6: error: expected constructor, destructor, or type conversion before '(' token
    3 | scanf("%d%d", &no1, &no2);
      |      ^
a.cc:5:7: error: expected constructor, destructor, or type conversion before '(' token
    5 | printf("%d",(no1-1) * (no2 - 1));
      |       ^
Language: C++

#include<iostream>
int main() { int n,m;cin>>n>>m;cout<<(n-1)*(m-1)<<endl; }


Compiler output:
a.cc: In function 'int main()':
a.cc:2:22: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    2 | int main() { int n,m;cin>>n>>m;cout<<(n-1)*(m-1)<<endl; }
      |                      ^~~
      |                      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:2:32: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    2 | int main() { int n,m;cin>>n>>m;cout<<(n-1)*(m-1)<<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:2:51: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    2 | int main() { int n,m;cin>>n>>m;cout<<(n-1)*(m-1)<<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>
using namespace std;
int m,n;int main(){
cin>>m>>n;
cout<<(m-1)*(n-1);
return 0;}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:4:1: error: 'cin' was not declared in this scope
    4 | cin>>m>>n;
      | ^~~
a.cc:5:1: error: 'cout' was not declared in this scope
    5 | cout<<(m-1)*(n-1);
      | ^~~~
Language: C++

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

Compiler output:
a.cc:8:18: error: stray '\' in program
    8 |         printf(%d\n",n);
      |                  ^
a.cc:8:20: warning: missing terminating " character
    8 |         printf(%d\n",n);
      |                    ^
a.cc:8:20: error: missing terminating " character
    8 |         printf(%d\n",n);
      |                    ^~~~~
a.cc: In function 'int main()':
a.cc:8:16: error: expected primary-expression before '%' token
    8 |         printf(%d\n",n);
      |                ^
a.cc:8:17: error: 'd' was not declared in this scope
    8 |         printf(%d\n",n);
      |                 ^
Language: C

#include <stdio.h>
 2
 3int main(void){
 4  int n,m;
 5
 6  fscanf(stdin, "%d %d", &n, &m);
 7
 8  printf("%d\n", (n-1)*(m-1));
 9
10  return 0;
11}






Compiler output:
main.c:2:2: error: expected identifier or '(' before numeric constant
    2 |  2
      |  ^
main.c:3:2: error: invalid suffix "int" on integer constant
    3 |  3int main(void){
      |  ^~~~
Language: C++

#include<iostream>
using namespace std;

int main()
{
  int n,m;
  cin >> n >> m;
  cout << (n-1)*(m-1); << "\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:24: error: expected primary-expression before '<<' token
    8 |   cout << (n-1)*(m-1); << "\n";
      |                        ^~
Language: C++

#include<iostream>
using namespace std;

int main()
{
  int n,m;
  cin >> n >> m;
  cout << (n-1)*(m-1); << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:24: error: expected primary-expression before '<<' token
    8 |   cout << (n-1)*(m-1); << endl;
      |                        ^~
Language: C

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cstdlib>
#include<ctime>
#include<queue>
using namespace std;
char a[1001];
int main()
{
 gets(a);
 int str=strlen(a);
 printf("%c%d%c",a[0],str-2,a[str-1]);
	return 0;
 }



Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cstdlib>
#include<ctime>
#include<queue>
using namespace std;
char a[1001];
int main()
{
 gets(a);
 int str=strlen(a);
 cout<<a[0]<<str-2<<a[str-1];
	return 0;
 }


Compiler output:
a.cc: In function 'int main()':
a.cc:12:2: error: 'gets' was not declared in this scope; did you mean 'getw'?
   12 |  gets(a);
      |  ^~~~
      |  getw
Language: C++

#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
    int n,m
    cin>>n>>m;
    n--;
    m--;
    int a=n*m;
    cout<<a<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: expected initializer before 'cin'
    7 |     cin>>n>>m;
      |     ^~~
a.cc:9:5: error: 'm' was not declared in this scope
    9 |     m--;
      |     ^
Language: C++

#include <iostream>
int main()
{
	int a, b;
  	cin >> a >> b;
  	cout << (a - 1) * (b - 1);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |         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:6:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |         cout << (a - 1) * (b - 1);
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C

#include <stdio.h>
int main()
{
    int n, m;
    scanf_s("%d %d", &n, &m);
    printf("%d\n", (n-1)*(m-1));
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:5: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    5 |     scanf_s("%d %d", &n, &m);
      |     ^~~~~~~
      |     scanf
Language: C++

#include<iostream>
#include<string.h>
using namespace std;
int main()
{
	int a[100000];
	int n;
        int i;
	cin >> n >> a[];

	for(i=0;i<=n-1;i++){	
		if(a[i]*a[i+1]%4!=0){
		cout << No << endl;
		break;
		if(i==n){
			cout << Yes << endl;
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:23: error: expected primary-expression before ']' token
    9 |         cin >> n >> a[];
      |                       ^
a.cc:13:25: error: 'No' was not declared in this scope
   13 |                 cout << No << endl;
      |                         ^~
a.cc:16:33: error: 'Yes' was not declared in this scope
   16 |                         cout << Yes << endl;
      |                                 ^~~
a.cc:20:2: error: expected '}' at end of input
   20 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include<iostream>
#include<string.h>
using namespace std;
int main()
{
	int a[100000];
	int n;
	cin >> n >> a[];

	for(i=0;i<=n-1;i++){	
		if(a[i]*a[i+1]%4!=0){
		cout << No << endl;
		break;
		if(i==n){
			cout << Yes << endl;
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:23: error: expected primary-expression before ']' token
    8 |         cin >> n >> a[];
      |                       ^
a.cc:10:13: error: 'i' was not declared in this scope
   10 |         for(i=0;i<=n-1;i++){
      |             ^
a.cc:12:25: error: 'No' was not declared in this scope
   12 |                 cout << No << endl;
      |                         ^~
a.cc:15:33: error: 'Yes' was not declared in this scope
   15 |                         cout << Yes << endl;
      |                                 ^~~
a.cc:19:2: error: expected '}' at end of input
   19 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include<iostream>
#include<string.h>
int main()
{
	char s[100];
	int n;
	cin >> s;
	n=strlen(s);
	cout << s[0] << n-2 << s[n-1];
	return 0;
	}
	

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |         cin >> s;
      |         ^~~
      |         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:9:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |         cout << s[0] << n-2 << s[n-1];
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include<iostream>
#include<string.h>
int main()
{
	char str[100];
	int n;
	cin >> str;
	n=strlen(str);
	cout << str[0] << n-2 << str[n-1];
	return 0;
	}
	

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |         cin >> str;
      |         ^~~
      |         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:9:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |         cout << str[0] << n-2 << str[n-1];
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C

#include <iostream>

using namespace std;

int main()
{
    int m,n;
    while(cin>>m>>n)
    {
        cout<<(m-1)*(n-1)<<endl;
    }
    return 0;
}

Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C


#include<stdio.h>
int main(void)
{
 int main n, m,t;

scanf("%d%d",&n,&m);

t=(n-1)*(m-1);

printf("\n%d\n",t);

return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'n'
    5 |  int main n, m,t;
      |           ^
main.c:5:11: error: 'n' undeclared (first use in this function)
main.c:5:11: note: each undeclared identifier is reported only once for each function it appears in
main.c:5:14: error: 'm' undeclared (first use in this function)
    5 |  int main n, m,t;
      |              ^
main.c:5:16: error: 't' undeclared (first use in this function)
    5 |  int main n, m,t;
      |                ^
Language: C

//A

#include<stdio.h>
int main(void)
{
 int main n, m,t;

scanf("%d%d",&n,&m);

t=(n-1)*(m-1);

printf("\n%d\n",t);

return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'n'
    6 |  int main n, m,t;
      |           ^
main.c:6:11: error: 'n' undeclared (first use in this function)
main.c:6:11: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:14: error: 'm' undeclared (first use in this function)
    6 |  int main n, m,t;
      |              ^
main.c:6:16: error: 't' undeclared (first use in this function)
    6 |  int main n, m,t;
      |                ^
Language: Java

import java.io.*;
import java.util.*;
class Test
{
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int m=sc.nextInt();

System.out.println((n-1)*(m-1));

Compiler output:
Main.java:11: error: reached end of file while parsing
System.out.println((n-1)*(m-1));
                                ^
1 error
Language: C++

＃include <iostream>
using namespace std;

int main(){
    int n, m;
    cin>>n>>m;
    cout<<(n-1)*(m-1)≤≤endl;
}

Compiler output:
a.cc:7:22: error: extended character ≤ is not valid in an identifier
    7 |     cout<<(n-1)*(m-1)≤≤endl;
      |                      ^
a.cc:7:22: error: extended character ≤ is not valid in an identifier
a.cc:1:1: error: '\U0000ff03include' does not name a type
    1 | ＃include <iostream>
      | ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope
    6 |     cin>>n>>m;
      |     ^~~
a.cc:7:5: error: 'cout' was not declared in this scope
    7 |     cout<<(n-1)*(m-1)≤≤endl;
      |     ^~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <cmath>
#include <string>
#include <array>
#include <vector>
#include <functional>
#include <unordered_map> 
#include <map> 
#include <numeric>
#include <limits>
#include <utility>
#include <queue>
#include <atltime.h>
#include <random>
using namespace std;
typedef long long LL;

int main(void) {
	int a, b;
	cin >> a >> b;
	cout << (a - 1)*(b - 1) << endl;
	return 0;
}

Compiler output:
a.cc:14:10: fatal error: atltime.h: No such file or directory
   14 | #include <atltime.h>
      |          ^~~~~~~~~~~
compilation terminated.
Language: C++

    #include<bits\stdc++.h>
    const int oo = 1e9;
    using namespace std;
    void fast(){
    	std::ios_base::sync_with_stdio(0);
    	cin.tie(NULL); cout.tie(NULL);
    }
     
     
    int main(){
    	fast();
    int n , m;cin>>n>>m;
    cout<<(n-1 * m-1 )<<endl;
    	return 0;
    }
    //mosta7il_

Compiler output:
a.cc:1:13: fatal error: bits\stdc++.h: No such file or directory
    1 |     #include<bits\stdc++.h>
      |             ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits\stdc++.h>
const int oo = 1e9;
using namespace std;
void fast(){
	std::ios_base::sync_with_stdio(0);
	cin.tie(NULL); cout.tie(NULL);
}


int main(){
	fast();
int n , m;cin>>n>>m;
cout<<(n * m )/2<<endl;
	return 0;
}
//mosta7il_

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

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

int main(){
  int a,b;
  cin >> a >> b;
  a--;b--;
  cout << 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 <bits/stdc++.h>
using namespace std;

long long int N, a, i;

int main(){
    scanf("%lld%lld", &N, &M);
    cout << (N - 1)*(M - 1) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:28: error: 'M' was not declared in this scope
    7 |     scanf("%lld%lld", &N, &M);
      |                            ^
Language: C++

#include <iostream>
#include <fstream>
#include <cstdio>
#include <cassert>
#include <complex>
#include <cmath>
#include <algorithm>
#include <vector>
#include <string>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <numeric>
#include <sstream>
#include <ctime>
#include <cctype>
#include <set>
#include <map>
#include <queue>
#include <bitset>
#include <deque>
#include <stack>
#include <memory.h>
using namespace std;
#define ll long long 
int main() {
    int H, W; cin >> H >> W;
    int N;    cin >> N;
    int a[N+1];
    for (int i = 1; i <= N; i++) {
        cin >> a[i];
    }
 
    int color = 1;
    int c[H+1][W+1];
 
    for (int i = 1; i <= H; i++) {
        if (i % 2 == 1) {
            for (int j = 1; j <= W; j++) {
                if (a[color] == 0) {
                    color++;
                }
                a[color]--;
                c[i][j] = color;
            }
        }
 
        else {
            for (int j = W; j >= 1; j--) {
                if (a[color] == 0) {
                    color++;
                }
                a[color]--;
                c[i][j] = color;
            }
        }
    }
 
    for (int i = 1; i <= H; i++) {
        for (int j = 1; j <= W; j++) {
            cout << c[i][j] << " ";
        }
        cout << endl;
    }
 
    return 0;
}

Compiler output:
a.cc:33:1: error: extended character   is not valid in an identifier
   33 |  
      | ^
a.cc:36:1: error: extended character   is not valid in an identifier
   36 |  
      | ^
a.cc:47:1: error: extended character   is not valid in an identifier
   47 |  
      | ^
a.cc:58:1: error: extended character   is not valid in an identifier
   58 |  
      | ^
a.cc:65:1: error: extended character   is not valid in an identifier
   65 |  
      | ^
a.cc: In function 'int main()':
a.cc:33:1: error: '\U000000a0' was not declared in this scope
   33 |  
      | ^
a.cc:36:2: error: expected ';' before 'for'
   36 |  
      |  ^
      |  ;
   37 |     for (int i = 1; i <= H; i++) {
      |     ~~~
a.cc:37:21: error: 'i' was not declared in this scope
   37 |     for (int i = 1; i <= H; i++) {
      |                     ^
a.cc:58:2: error: expected ';' before 'for'
   58 |  
      |  ^
      |  ;
   59 |     for (int i = 1; i <= H; i++) {
      |     ~~~
a.cc:65:2: error: expected ';' before 'return'
   65 |  
      |  ^
      |  ;
   66 |     return 0;
      |     ~~~~~~
Language: C++

#include <iostream>
#include <fstream>
#include <cstdio>
#include <cassert>
#include <complex>
#include <cmath>
#include <algorithm>
#include <vector>
#include <string>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <numeric>
#include <sstream>
#include <ctime>
#include <cctype>
#include <set>
#include <map>
#include <queue>
#include <bitset>
#include <deque>
#include <stack>
#include <memory.h>
using namespace std;
#define ll long long 
using namespace std;
 
int main() {
    int H, W; cin >> H >> W;
    int N;    cin >> N;
    int a[N+1];
    for (int i = 1; i <= N; i++) {
        cin >> a[i];
    }
 
    int color = 1;
    int c[H+1][W+1];
 
    for (int i = 1; i <= H; i++) {
        if (i % 2 == 1) {
            for (int j = 1; j <= W; j++) {
                if (a[color] == 0) {
                    color++;
                }
                a[color]--;
                c[i][j] = color;
            }
        }
 
        else {
            for (int j = W; j >= 1; j--) {
                if (a[color] == 0) {
                    color++;
                }
                a[color]--;
                c[i][j] = color;
            }
        }
    }
 
    for (int i = 1; i <= H; i++) {
        for (int j = 1; j <= W; j++) {
            cout << c[i][j] << " ";
        }
        cout << endl;
    }
 
    return 0;
}

Compiler output:
a.cc:27:1: error: extended character   is not valid in an identifier
   27 |  
      | ^
a.cc:35:1: error: extended character   is not valid in an identifier
   35 |  
      | ^
a.cc:38:1: error: extended character   is not valid in an identifier
   38 |  
      | ^
a.cc:49:1: error: extended character   is not valid in an identifier
   49 |  
      | ^
a.cc:60:1: error: extended character   is not valid in an identifier
   60 |  
      | ^
a.cc:67:1: error: extended character   is not valid in an identifier
   67 |  
      | ^
a.cc:27:1: error: '\U000000a0' does not name a type
   27 |  
      | ^
Language: C++

#include <iostream>

int main(){
   int n, m;
   std:cin >> n >> m;
   std:cout << (n-1)*(m-1) << std:endl;
   return 0;
};

Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |    std:cin >> n >> m;
      |        ^~~
      |        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:6:4: error: duplicate label 'std'
    6 |    std:cout << (n-1)*(m-1) << std:endl;
      |    ^~~
a.cc:6:8: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |    std:cout << (n-1)*(m-1) << std: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:6:34: error: found ':' in nested-name-specifier, expected '::'
    6 |    std:cout << (n-1)*(m-1) << std:endl;
      |                                  ^
      |                                  ::
Language: C++

#include <iostream>

int main(){
    int n, m;
    std:cin >> n >> m
    std:cout << (n-1)*(m-1) << std:endl;
    return 0;
};

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |     std:cin >> n >> m
      |         ^~~
      |         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
      |                  ^~~
Language: C++

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

int main(){
  int n、m;
  cin >> n >> m;

  cout << (n-1)*(m-1) << endl;
  return 0;
}

Compiler output:
a.cc:5:7: error: extended character 、 is not valid in an identifier
    5 |   int n、m;
      |       ^
a.cc: In function 'int main()':
a.cc:6:10: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |   cin >> n >> m;
      |          ^
      |          yn
a.cc:6:15: error: 'm' was not declared in this scope; did you mean 'tm'?
    6 |   cin >> n >> m;
      |               ^
      |               tm
Language: C++

#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <float.h>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <limits>
#include <locale>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wchar.h>
#include <wctype.h>
#include <algorithm>
#include <bitset>
#include <cctype>
#include <cerrno>
#include <clocale>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <exception>
#include <functional>
#include <map>
#include <ios>
#include <iosfwd>
#include <istream>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <utility>
#include <vector>
#include <cwchar>
#include <cwctype>
#include <complex.h>
#include <fenv.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <tgmath.h>
#include <conio.h>
#include <numeric>
#include <list>
#include <windows.h>
#include <cfloat>
#include <climits>
#include <unordered_map>
#include <unordered_set>
using namespace std;

int main()
{
	int n,m;
	cin>>n>>m;
	cout<<--n*--m;
	return 0;
}

Compiler output:
a.cc:53:10: fatal error: conio.h: No such file or directory
   53 | #include <conio.h>
      |          ^~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <vector>

using namespace std;
int main(){
	int N;
	cin >> N;

	int mod4 = 0;
	int modX = 0;

	vector<unsigned int> A(N);
	for(int i=0; i<N; i++){
		cin >> A[i];
		if(A[i] % 4 == 0) mod4++;
		else if(A[i] % 2 != 0) modX++;
	}
	
	if(mod4 > 0){
		if(mod4 >= modX){
			 cout << "Yes" << endl;
		} else{
			cout << "No" << endl;
		}
	}else if(modX = 0 && N % 2==0){
		cout << "Yes" << endl;
	else
		cout << "No" << endl;
	
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: expected '}' before 'else'
   27 |         else
      |         ^~~~
a.cc:25:39: note: to match this '{'
   25 |         }else if(modX = 0 && N % 2==0){
      |                                       ^
Language: C++

#include <iostream>
using namespace std;

int n;
int m;

int main()
{
	cin >> n >> m;
	cout << (n-1) * (m-1) <, endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:32: error: expected primary-expression before ',' token
   10 |         cout << (n-1) * (m-1) <, endl;
      |                                ^
Language: C++

#include <iostream>
using namespace std;

int n;
int m;

int main()
{
	cin >> n >> m;
	cout << (n-1) * (m-1) <, endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:32: error: expected primary-expression before ',' token
   10 |         cout << (n-1) * (m-1) <, endl;
      |                                ^
Language: C

#include <stdio.h>
#include <string.h>
main() {
    char str[222];
    int a,b;
    int i;

    scanf("%s", &str);

    strncpy( a, str, 1 ); //strの先頭の位置から1文字をtにコピー
    t[1] = '\0';

     n = strlen(str);
 
    for (i = n - 2 ; i ; i -= 2) {
        if(strncmp(str, str  + i/2 , i/2 ) == 0) {
            printf( "%s %d %s \n", a,i,b );
            return 0;
        }
}

Compiler output:
main.c:3:1: error: return type defaults to 'int' [-Wimplicit-int]
    3 | main() {
      | ^~~~
main.c: In function 'main':
main.c:10:14: error: passing argument 1 of 'strncpy' makes pointer from integer without a cast [-Wint-conversion]
   10 |     strncpy( a, str, 1 ); //strの先頭の位置から1文字をtにコピー
      |              ^
      |              |
      |              int
In file included from main.c:2:
/usr/include/string.h:144:40: note: expected 'char * restrict' but argument is of type 'int'
  144 | extern char *strncpy (char *__restrict __dest,
      |                       ~~~~~~~~~~~~~~~~~^~~~~~
main.c:11:5: error: 't' undeclared (first use in this function)
   11 |     t[1] = '\0';
      |     ^
main.c:11:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:13:6: error: 'n' undeclared (first use in this function)
   13 |      n = strlen(str);
      |      ^
main.c:20:1: error: expected declaration or statement at end of input
   20 | }
      | ^
Language: C

    #include <stdio.h>
    #include <string.h>
     
    int main2() {
     
    	char c[101];
    	char num,chl;
     
    	scanf("%s", &c);
     
    	num = strlen(c);
     
    	chl = c[(num - 1)];
     
    	printf("%c%d%c",c[0],(num-2),chl);
     
    	return 0;
     
    }

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <algorithm>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <string>
#include <utility>
#include <vector>

using namespace std;

int f(int x) {

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

    cout << (a - 1) * (b - 1) << endl;

    return 0;
  }


Compiler output:
a.cc: In function 'int f(int)':
a.cc:13:11: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   13 |   int main() {
      |           ^~
a.cc:13:11: note: remove parentheses to default-initialize a variable
   13 |   int main() {
      |           ^~
      |           --
a.cc:13:11: note: or replace parentheses with braces to value-initialize a variable
a.cc:13:14: error: a function-definition is not allowed here before '{' token
   13 |   int main() {
      |              ^
a.cc:20:4: error: expected '}' at end of input
   20 |   }
      |    ^
a.cc:11:14: note: to match this '{'
   11 | int f(int x) {
      |              ^
a.cc:20:4: warning: no return statement in function returning non-void [-Wreturn-type]
   20 |   }
      |    ^
Language: C

include <stdio.h>

int main(){
   unsigned char n,m;

   scanf("%d %d",&n,&m);

   printf("%d\n",(--n)*(--m));

   return 0;
}

Compiler output:
main.c:1:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include <stdio.h>
      |         ^
Language: C

include<stdio.h>

int main(){
   unsigned char n,m;

   scanf("%d %d",&n,&m);

   printf("%d\n",(--n)*(--m));

   return 0;
}

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

#include <stdio.h>

int main(void)
{
	int n,m;
	scanf("%d%d",&n,&m)
	printf("%d\n",(n - 1)*(m - 1));
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:28: error: expected ';' before 'printf'
    6 |         scanf("%d%d",&n,&m)
      |                            ^
      |                            ;
    7 |         printf("%d\n",(n - 1)*(m - 1));
      |         ~~~~~~
Language: C

#include <stdio.h>

int main(void)
{
	int n,m;
	scanf("%d%d",&n&m);
	printf("%d\n",(n - 1)*(m - 1));
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:24: error: invalid operands to binary & (have 'int *' and 'int')
    6 |         scanf("%d%d",&n&m);
      |                      ~~^
      |                      |
      |                      int *
Language: C

#include <stdio.h>

int main(void)
{
	int n,m;
	scanf("%d%d",&n&m)
	printf("%d\n",(n - 1)*(m - 1));
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:24: error: invalid operands to binary & (have 'int *' and 'int')
    6 |         scanf("%d%d",&n&m)
      |                      ~~^
      |                      |
      |                      int *
main.c:6:27: error: expected ';' before 'printf'
    6 |         scanf("%d%d",&n&m)
      |                           ^
      |                           ;
    7 |         printf("%d\n",(n - 1)*(m - 1));
      |         ~~~~~~
Language: Java

public class Main{
    public static void main(String[]args){
        int n = new java.util.Scarnner(System.in).NextInt();
        int m = new java.util.Scarnner(System.in).NextInt();
        int k= (n-1)*(m-1);
         System.out.println(k);
    }
}

Compiler output:
Main.java:3: error: cannot find symbol
        int n = new java.util.Scarnner(System.in).NextInt();
                             ^
  symbol:   class Scarnner
  location: package java.util
Main.java:4: error: cannot find symbol
        int m = new java.util.Scarnner(System.in).NextInt();
                             ^
  symbol:   class Scarnner
  location: package java.util
2 errors
Language: Java

public class Main{
    public static void main(String[]args){
        int n = java.util.Random().nextInt(98)+2;
        int m = java.util.Random().nextInt(98)+2;
        int k= (n-1)*(m-1);
         System.out.println(k);
    }
}

Compiler output:
Main.java:3: error: cannot find symbol
        int n = java.util.Random().nextInt(98)+2;
                    ^
  symbol:   class util
  location: package java
Main.java:4: error: cannot find symbol
        int m = java.util.Random().nextInt(98)+2;
                    ^
  symbol:   class util
  location: package java
2 errors
Language: Java

import java.util.*;
public class Solution {
	public static void main(String args[]){
		Scanner input = new Scanner(System.in);
		int n = input.nextInt();
		int m = input.nextInt();
		System.out.println((n-1)*(m-1));
	}
}


Compiler output:
Main.java:2: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: Java

public class main{
    public static void main(String[]args){
        int n = new java.util.Scanner(System.in).nextInt();
        int m = new java.util.Scanner(System.in).nextInt();
        int k= (n-1)*(m-1);
         System.out.println(k);
    }
}

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


	public static void main(String args){
		Scanner input = new Scanner(System.in);
		int n = input.nextInt();
		int m = input.nextInt();
		System.out.println((n-1)*(m-1));
}


Compiler output:
Main.java:2: error: unnamed classes are a preview feature and are disabled by default.
	public static void main(String args){
	              ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: Java

public class main{
    public static void main(String[]args){
        int n = new.java.util.Scanner().nextInt();
        int m = new.java.util.Scanner().nextInt();
        int k= (n-1)*(m-1);
         System.out.println(k);
    }
}

Compiler output:
Main.java:3: error: <identifier> expected
        int n = new.java.util.Scanner().nextInt();
                   ^
Main.java:4: error: <identifier> expected
        int m = new.java.util.Scanner().nextInt();
                   ^
2 errors
Language: Java

import java.util.*;
public class Solution {
	public static void main(String args){
		Scanner input = new Scanner(System.in);
		int n = input.nextInt();
		int m = input.nextInt();
		System.out.println((n-1)*(m-1));
	}
}


Compiler output:
Main.java:2: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: C++

#include <cstdio>
#include <iostream>

using namespace std;

}
int main()
{
    int n,m,c;
    while(cin>>n>>m)
    {
        c=n*m;
        cout<<c<<endl;
    }
    return 0;
}


Compiler output:
a.cc:6:1: error: expected declaration before '}' token
    6 | }
      | ^
Language: C

#include<stdio.h>
 
int main(){
 
int a,b;
scanf("%d %d",&a,&b);

printf("(a-1)*(b-1)\n"a,b); 

}

Compiler output:
main.c: In function 'main':
main.c:8:23: error: expected ')' before 'a'
    8 | printf("(a-1)*(b-1)\n"a,b);
      |       ~               ^
      |                       )
Language: C

#include <stdio.h>
int main(void){
	int n,m;
	scanf("%d %d",&n,&m);
	printf("%d",(n-1)*(m-1);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:32: error: expected ')' before ';' token
    5 |         printf("%d",(n-1)*(m-1);
      |               ~                ^
      |                                )
main.c:6:18: error: expected ';' before '}' token
    6 |         return 0;
      |                  ^
      |                  ;
    7 | }
      | ~
Language: C++

#include <iostream>
#include <vector>
#include <string >
#include <set>
using namespace std;

int main(){
	int n, m;
	cin >> n >> m;
	
	cout << (n-1)*(m-1) << endl;
	
	return 0;
}


Compiler output:
a.cc:3:10: fatal error: string : No such file or directory
    3 | #include <string >
      |          ^~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
  2 #include <cstdio>
  3 #include <algorithm>
  4 #include <cmath>
  5 #include <vector>
  6 
  7 using namespace std;
  8 
  9 int main() {
 10 
 11     int n, m;
 12     cin >> n >> m;
 13     cout << (n - 1) * (m - 1) << endl;
 14 
 15     return 0;
 16 }


Compiler output:
a.cc:2:5: error: stray '#' in program
    2 |   2 #include <cstdio>
      |     ^
a.cc:3:5: error: stray '#' in program
    3 |   3 #include <algorithm>
      |     ^
a.cc:4:5: error: stray '#' in program
    4 |   4 #include <cmath>
      |     ^
a.cc:5:5: error: stray '#' in program
    5 |   5 #include <vector>
      |     ^
a.cc:2:3: error: expected unqualified-id before numeric constant
    2 |   2 #include <cstdio>
      |   ^
a.cc:8:3: error: expected unqualified-id before numeric constant
    8 |   8
      |   ^
Language: C++

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

int main(){
    string s;
    int a,b,c,d,e;

    cin>>a>>b;
    cout<<(a-1)*(b-1)<<endl;

    return 0;

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

int main(){
    string s;
    int a,b,c,d,e;

    cin>>a>>b;
    cout<<(a-1)*(b-1)<<endl;

    return 0;

}

Compiler output:
a.cc:17:2: error: stray '#' in program
   17 | }#include<bits/stdc++.h>
      |  ^
a.cc:17:3: error: 'include' does not name a type
   17 | }#include<bits/stdc++.h>
      |   ^~~~~~~
a.cc:24:5: error: redefinition of 'int main()'
   24 | int main(){
      |     ^~~~
a.cc:8:5: note: 'int main()' previously defined here
    8 | int main(){
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
#define  rep(i,n) for(li i=0;i<(n);i++)
#define  red(i,n) for(li i=(n)-1;i>=0;i--)
#define  all(a)   begin(a),end(a)
#define  pb(a)    push_back(a) 
using namespace std;
using ll = long long;
using vi = vector<li>;
using vs = vector<string>;


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

    cout<<(a-1)*(b-1)<<endl;

    return 0;
}


Compiler output:
a.cc:8:19: error: 'li' was not declared in this scope; did you mean 'll'?
    8 | using vi = vector<li>;
      |                   ^~
      |                   ll
a.cc:8:21: error: template argument 1 is invalid
    8 | using vi = vector<li>;
      |                     ^
a.cc:8:21: error: template argument 2 is invalid
Language: C++

#include <string>
#include <iostream>
using namespace std;
int main()
{
  string s;
  cin >> s;
  cotu << s[0] << s.length()-2 << s[s.length()-1];
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'cotu' was not declared in this scope
    8 |   cotu << s[0] << s.length()-2 << s[s.length()-1];
      |   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
 int a;
  string s;
  cin >> s;
  a = s.size();
  cout << s.[0] << a-2 << s.[a-1] << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected unqualified-id before '[' token
    9 |   cout << s.[0] << a-2 << s.[a-1] << endl;
      |             ^
a.cc:9:29: error: expected unqualified-id before '[' token
    9 |   cout << s.[0] << a-2 << s.[a-1] << endl;
      |                             ^