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

#include <iostream>

int main()
{
    long long a = 0;
    std::cin >> a;

    double b = 0.0;
    std::cin >> b;
    long long c = b * 100.0;

    std::cout << long long(a * c) / 100;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:18: error: expected primary-expression before 'long'
   12 |     std::cout << long long(a * c) / 100;
      |                  ^~~~
Language: C

#include<stdio.h>
main()
{
    double A,B,m;
    scanf("%d %lf", &A, &B);
    
    double m = A*B;
    int b = m;
    printf("%d", b);

    return 0;
}

Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main()
      | ^~~~
main.c: In function 'main':
main.c:7:12: error: redeclaration of 'm' with no linkage
    7 |     double m = A*B;
      |            ^
main.c:4:16: note: previous declaration of 'm' with type 'double'
    4 |     double A,B,m;
      |                ^
Language: C++

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

int main() {
	long long a;
	double b;
	cin >> a >> b;
	if(a==0||b==0)
	{
		cout << 0 << endl;
	}
	else if(a < 100000000)
	{
	long long c = b*100,ff=a*c;
	long long aa=ff%100;bb=ff-aa;d = bb / 100;
	cout << d << endl;
	}
	else
	{
		long long c = a % 1000,d = a - c;
		d *= b;
		long long e = b * 100,f=c*e;
		long long x=f%100,y=f-x,z=y/100;
		long long g = d + z;
		cout << g << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:29: error: 'bb' was not declared in this scope; did you mean 'b'?
   15 |         long long aa=ff%100;bb=ff-aa;d = bb / 100;
      |                             ^~
      |                             b
a.cc:15:38: error: 'd' was not declared in this scope
   15 |         long long aa=ff%100;bb=ff-aa;d = bb / 100;
      |                                      ^
Language: C++

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

int main()
{
    int A;
    double B;
    cin>>A>>B;

    cout<<(int)(A*B)<<endl;
    return 0;
}

Compiler output:
a.cc:2:9: fatal error: conio.h: No such file or directory
    2 | #include<conio.h>
      |         ^~~~~~~~~
compilation terminated.
Language: C++

A, B = map(float, input().split())
if (A==0)or(B==0):
    print (0)
else:
    C = int(A)
    D = int(B * 100)
    E = int(D*C)
    E /= 100
    print (int(E))

Compiler output:
a.cc:1:1: error: 'A' does not name a type
    1 | A, B = map(float, input().split())
      | ^
Language: C++

#include<iostream>
using namespace std;

int main() {
  int64_t A;
  cin >> A;
  double B;
  cin >> B;
  if ( B >= 1 ) {
    int64_t D = (int)B;
    cout << A * D << endl;
  }
  else {
    int64_t T = A * B
    cout << T << endl;
  }
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: expected ',' or ';' before 'cout'
   15 |     cout << T << endl;
      |     ^~~~
Language: Java

import java.util.*;

public class qwerty 
{
    public static void main(String args[])
    {
        Scanner in=new Scanner(System.in);
        
        long  n;double k;
        n=in.nextLong();
        k=in.nextDouble();
        long ans=(long)((n*1.0)*k);
        
        System.out.println(ans);
    }   

}


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

#include<iostream>
using namespace std;
int main()
{
    cout << fixed << setprecision(2);
    int A = 168;
	double B =5.15;
    cin >> A >> B;
    cout << (int)A * B << endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:22: error: 'setprecision' was not declared in this scope
    5 |     cout << fixed << setprecision(2);
      |                      ^~~~~~~~~~~~
a.cc:2:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    1 | #include<iostream>
  +++ |+#include <iomanip>
    2 | using namespace std;
Language: C++

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

using namespace std;

int main() {

	long double A;
	double B;

	cin >> A >> B;
	
	
	cout << long long(A*B) << endl;

	//cout << LDBL_MAX;
	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: expected primary-expression before 'long'
   17 |         cout << long long(A*B) << endl;
      |                 ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int min(){
  int a;
  float b;
  cin >> a >> b;
  b = b * 100;
  int ans;
  ans = (a * b) / 100;
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int min()':
a.cc:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
   11 | }
      | ^
/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<iostream>
using namespace std;

int main(){
  int64_t a;
  double b,d;
  
  cin>>a>>b;
  
  int64_t c;
  (int)d=b*100;

  
  c=a*d/100;
  
  cout<<c<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: lvalue required as left operand of assignment
   11 |   (int)d=b*100;
      |   ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  long long int A;
  long long double B;
  cin >> A >> B;
  long long int C = round(A * B);
  cout << C << endl;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'long long' specified with 'double'
    5 |   long long double B;
      |        ^~~~
Language: C

#include<stdio.h>
main()
{
    double A,B,m;
    scanf("%d %d", &A, &B);
    
    double m = A*B;
    int b = m;
    printf(b);

    return 0;
}

Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main()
      | ^~~~
main.c: In function 'main':
main.c:7:12: error: redeclaration of 'm' with no linkage
    7 |     double m = A*B;
      |            ^
main.c:4:16: note: previous declaration of 'm' with type 'double'
    4 |     double A,B,m;
      |                ^
main.c:9:12: error: passing argument 1 of 'printf' makes pointer from integer without a cast [-Wint-conversion]
    9 |     printf(b);
      |            ^
      |            |
      |            int
In file included from main.c:1:
/usr/include/stdio.h:363:43: note: expected 'const char * restrict' but argument is of type 'int'
  363 | extern int printf (const char *__restrict __format, ...);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Language: C++

#inlcude<iostream>
using namespace std;

int main(){
  int64_t a;
  double b,d;
  
  cin>>a>>b;
  
  int64_t c;
  d=b*100;
  (int)d;
  
  c=a*d/100;
  
  cout<<c<<endl;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude<iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:3: error: 'int64_t' was not declared in this scope
    5 |   int64_t a;
      |   ^~~~~~~
a.cc:1:1: note: 'int64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | #inlcude<iostream>
a.cc:8:3: error: 'cin' was not declared in this scope
    8 |   cin>>a>>b;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #inlcude<iostream>
a.cc:8:8: error: 'a' was not declared in this scope
    8 |   cin>>a>>b;
      |        ^
a.cc:10:10: error: expected ';' before 'c'
   10 |   int64_t c;
      |          ^~
      |          ;
a.cc:14:3: error: 'c' was not declared in this scope
   14 |   c=a*d/100;
      |   ^
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout<<c<<endl;
      |   ^~~~
a.cc:16:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:12: error: 'endl' was not declared in this scope
   16 |   cout<<c<<endl;
      |            ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #inlcude<iostream>
Language: C++

#include <iostream>
using namespace std;

int main() {
	long long a;
	double b;
	long long answer = 0;

	cin >> a >> b;
	answer = long long(a * b);

	cout << answer << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: expected primary-expression before 'long'
   10 |         answer = long long(a * b);
      |                  ^~~~
Language: C++

#include <stdio.h>
using namespace std;

int main(){
  double N, M;
  
  cin >> N >> M ;
  print(int(N*M))
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> N >> M ;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <stdio.h>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:8:3: error: 'print' was not declared in this scope; did you mean 'printf'?
    8 |   print(int(N*M))
      |   ^~~~~
      |   printf
Language: Java

import java.util.*;

public class Main{
	
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    long a=sc.nextLong();
    float b=sc.nextFloat();
    System.out.println((long)((float)a*b);
    
  }
}


Compiler output:
Main.java:9: error: ')' or ',' expected
    System.out.println((long)((float)a*b);
                                         ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
    unsigned long long int a;
    double float b;
    unsigned long long int ans;
    cin>>a>>b;

    ans=a*b;
    cout<<ans;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: two or more data types in declaration of 'b'
    6 |     double float b;
      |     ^~~~~~
a.cc:8:13: error: 'b' was not declared in this scope
    8 |     cin>>a>>b;
      |             ^
Language: C++

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

int main() {
    int64_t A;
    double B;
    cin >> A >> B;

    if(A == 0||B == 0) {
        cout << 0 << endl;
        return;
    }

    B = B*100;

    int64_t C = B;

    cout << A*C/100 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   11 |         return;
      |         ^~~~~~
Language: Java

# ANSHUL GAUTAM
# IIIT-D

from math import *
from copy import *                    # ll = deepcopy(l)
from heapq import *                    # heappush(hp,x)
from string import *                # alpha = ascii_lowercase
from random import *                # l.sort(key=lambda l1:l1[0]-l1[1]) => ex: sort on the basis difference
from bisect import *                # bisect_left(arr,x,start,end)  => start and end parameters are temporary
from sys import stdin                # bisect_left return leftmost position where x should be inserted to keep sorted
from sys import maxsize                # minn = -maxsize
from operator import *                # d = sorted(d.items(), key=itemgetter(1))
from itertools import *				  # pre = [0] + list(accumulate(l))
from collections import Counter        # d = dict(Counter(l))
from collections import defaultdict # d = defaultdict(list)

'''
9990000000000000
9990000000000000
'''

def solve(l):
	a,b = l
	a = int(a)
	p = a*b
	return int(p)

l = list(map(float, stdin.readline().rstrip().split()))
ans = solve(l)
print(ans)



Compiler output:
Main.java:1: error: illegal character: '#'
# ANSHUL GAUTAM
^
Main.java:2: error: illegal character: '#'
# IIIT-D
^
Main.java:5: error: illegal character: '#'
from copy import *                    # ll = deepcopy(l)
                                      ^
Main.java:6: error: illegal character: '#'
from heapq import *                    # heappush(hp,x)
                                       ^
Main.java:7: error: illegal character: '#'
from string import *                # alpha = ascii_lowercase
                                    ^
Main.java:8: error: illegal character: '#'
from random import *                # l.sort(key=lambda l1:l1[0]-l1[1]) => ex: sort on the basis difference
                                    ^
Main.java:9: error: illegal character: '#'
from bisect import *                # bisect_left(arr,x,start,end)  => start and end parameters are temporary
                                    ^
Main.java:10: error: illegal character: '#'
from sys import stdin                # bisect_left return leftmost position where x should be inserted to keep sorted
                                     ^
Main.java:11: error: illegal character: '#'
from sys import maxsize                # minn = -maxsize
                                       ^
Main.java:12: error: illegal character: '#'
from operator import *                # d = sorted(d.items(), key=itemgetter(1))
                                      ^
Main.java:13: error: illegal character: '#'
from itertools import *				  # pre = [0] + list(accumulate(l))
                       				  ^
Main.java:14: error: illegal character: '#'
from collections import Counter        # d = dict(Counter(l))
                                       ^
Main.java:15: error: illegal character: '#'
from collections import defaultdict # d = defaultdict(list)
                                    ^
Main.java:17: error: empty character literal
'''
^
Main.java:17: error: illegal line end in character literal
'''
  ^
Main.java:20: error: empty character literal
'''
^
Main.java:20: error: illegal line end in character literal
'''
  ^
17 errors
Language: C++

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

int main(){
  double N, M;
  
  cin >> N >> M ;
  print(int(N*M))
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'print' was not declared in this scope; did you mean 'rint'?
    8 |   print(int(N*M))
      |   ^~~~~
      |   rint
Language: C

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

#define     bip(a)         __builtin_popcount(a)
#define     ull            unsigned long long
#define     ll             long long
#define     u              unsigned
#define     pb             push_back
#define     pf             push_front ///for list
#define     mp             make_pair
#define     is             insert
#define     ff             first
#define     ss             second
#define     vi             vector<int>
#define     vl             vector<ll>
#define     si             set<int>
#define     sl             set<ll>
#define     li             list<int>
#define     pii            pair<int,int>
#define     pll            pair<ll,ll>
#define     mii            map<int,int>
#define     mll            map<ll,ll>
#define     ma             INT_MAX
#define     mi             INT_MIN
#define     mod            1000000007
#define     pi             3.14159265359
#define     e              2.71828182846
#define     inf            1000000000000000LL
#define     all(x)         x.begin(), x.end()
#define     lb(a,b,c)      lower_bound(a,a+b,c)-a
#define     ub(a,b,c)      upper_bound(a,a+b,c)-a
#define     lbv(a,c)       lower_bound(all(a),c)-a.begin()
#define     ubv(a,c)       upper_bound(all(a),c)-a.begin()
#define     srt1(a,b)      sort(a,a+b)
#define     srt2(a,b)      sort(a,a+b,greater<int>())
#define     gcd(a,b)       __gcd(a,b)
#define     lcm(a,b)       (a*(b/gcd(a,b)))
#define     harmonic(n)    0.57721566490153286l+log(n)
#define     mem(a, b)      memset(a, b, sizeof(a))

///s.lower_bound(a),s.upper_bound(a), for set
///nCr(x, y) = nCr(x-1, y-1) + nCr(x-1, y)
///factorial digit   ((n * log10(n / e) +log10(2 * pi * n) /2.0));


int main()
{
    ll a;
    float b;
    cin>>a>>b;
    double ans=a*b;
    ans=trunc(ans);
    cout<<(ll)ans<<endl;
}



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

# import math
# import fractions

inp = list(input().split())

A = int(inp[0])
B = float(inp[1])

if A == 0 or B == 0:
    print(0)

# print(type(A))
# print(type(B))

# print(A, B)

ans = A * B

# print(type(ans))

# print(math.floor(ans))
print(int(ans))

Compiler output:
a.cc:1:3: warning: #import is a deprecated GCC extension [-Wdeprecated]
    1 | # import math
      |   ^~~~~~
a.cc:1:10: error: #import expects "FILENAME" or <FILENAME>
    1 | # import math
      |          ^~~~
a.cc:2:3: warning: #import is a deprecated GCC extension [-Wdeprecated]
    2 | # import fractions
      |   ^~~~~~
a.cc:2:10: error: #import expects "FILENAME" or <FILENAME>
    2 | # import fractions
      |          ^~~~~~~~~
a.cc:12:3: error: invalid preprocessing directive #print
   12 | # print(type(A))
      |   ^~~~~
a.cc:13:3: error: invalid preprocessing directive #print
   13 | # print(type(B))
      |   ^~~~~
a.cc:15:3: error: invalid preprocessing directive #print
   15 | # print(A, B)
      |   ^~~~~
a.cc:19:3: error: invalid preprocessing directive #print
   19 | # print(type(ans))
      |   ^~~~~
a.cc:21:3: error: invalid preprocessing directive #print
   21 | # print(math.floor(ans))
      |   ^~~~~
a.cc:4:1: error: 'inp' does not name a type; did you mean 'int'?
    4 | inp = list(input().split())
      | ^~~
      | int
Language: C++

//#include <bits/stdc++.h>
#include "stdc++.h"
using namespace std;
typedef long long ll;
 
int ctoi(const char c) {
    switch (c) {
    case '0': return 0;
    case '1': return 1;
    case '2': return 2;
    case '3': return 3;
    case '4': return 4;
    case '5': return 5;
    case '6': return 6;
    case '7': return 7;
    case '8': return 8;
    case '9': return 9;
    default: return -1;
    }
}

ll A;
string B;
 
int main(void)
{
	cin >> A >> B;
 
    ll ans = 0;


    ans = A * (ctoi(B[0])+ ctoi(B[2]) * 0.1 + ctoi(B[3]) * 0.01);

    cout << ans;
}

Compiler output:
a.cc:2:10: fatal error: stdc++.h: No such file or directory
    2 | #include "stdc++.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

int main() {
  long int a,ans;
  double b;
  scanf("%ld %lf", &a,&b);
    ans=(a*b);
    //ans2=ans;

    printf("%ld",ans);


    return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'scanf' was not declared in this scope
    4 |   scanf("%ld %lf", &a,&b);
      |   ^~~~~
a.cc:8:5: error: 'printf' was not declared in this scope
    8 |     printf("%ld",ans);
      |     ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main() {
Language: Java

import java.util.*;

public class qwerty 
{
    public static void main(String args[])
    {
        Scanner in=new Scanner(System.in);
        
        long n;String g;
        n=in.nextInt();
        g=in.next();
        long ans=0;
        int k=g.indexOf('.');
        
        ans=n*(Integer.parseInt(g.substring(0,k)))+(n*(int)(g.charAt(k+1)-'0'))/10+(n*(int)(g.charAt(k+2)-'0'))/100;

        System.out.println(ans);
        
    }   

}


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

//#define _GLIBCXX_DEBUG
#include<bits/stdc++.h>

#define PI 3.14159265359
using namespace std;
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
#define bit(n,k) (((ll)n>>(ll)k)&1) /*nのk bit目*/
const long long INF= 1e+18+1;
typedef long long ll;
//using ll=__int128;
typedef vector<ll> vl;
typedef vector<vector<ll> >vvl;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> T;
//const ll MOD=1000000007LL;
const ll MOD=998244353LL;
//const ll MAX_V=114514LL;
const ll MAX = 510000LL;
string abc="abcdefghijklmnopqrstuvwxyz";
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
vl dx={-1,-1,-1,0,0,1,1,1};
vl dy={1,-1,0,1,-1,1,0,-1};
//#define _GLIBCXX_DEBUG
#include<bits/stdc++.h>

#define PI 3.14159265359
using namespace std;
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
#define bit(n,k) (((ll)n>>(ll)k)&1) /*nのk bit目*/
const long long INF= 1e+18+1;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vector<ll> >vvl;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> T;
//const ll MOD=1000000007LL;
const ll MOD=998244353LL;
//const ll MAX_V=114514LL;
const ll MAX = 510000LL;
string abc="abcdefghijklmnopqrstuvwxyz";
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
vl dx={-1,-1,-1,0,0,1,1,1};
vl dy={1,-1,0,1,-1,1,0,-1};

//ll dp[3010][3010];
int main(){
  ll a;cin>>a;
  double b;cin>>b;
  b*=100;
  ll bb=b;
  if(a==0||b==0){
    cout<<0<<endl;
    return 0;
  }
  /*vl vec(3);
  vec[0]=bb%10;
  bb/=10;
  vec[1]=bb%10;
  bb/=10;
  vec[2]=bb%10;
  */
  ll ans=1LL;
  ans*=a;
  ans*=bb;
  ans/=100LL;
  //cout<<a<<" "<<b<<" "<<bb<<endl;
  cout<<ans<<endl;
}


Compiler output:
a.cc:30:17: error: redefinition of 'const long long int INF'
   30 | const long long INF= 1e+18+1;
      |                 ^~~
a.cc:8:17: note: 'const long long int INF' previously defined here
    8 | const long long INF= 1e+18+1;
      |                 ^~~
a.cc:37:10: error: redefinition of 'const ll MOD'
   37 | const ll MOD=998244353LL;
      |          ^~~
a.cc:16:10: note: 'const ll MOD' previously defined here
   16 | const ll MOD=998244353LL;
      |          ^~~
a.cc:39:10: error: redefinition of 'const ll MAX'
   39 | const ll MAX = 510000LL;
      |          ^~~
a.cc:18:10: note: 'const ll MAX' previously defined here
   18 | const ll MAX = 510000LL;
      |          ^~~
a.cc:40:8: error: redefinition of 'std::string abc'
   40 | string abc="abcdefghijklmnopqrstuvwxyz";
      |        ^~~
a.cc:19:8: note: 'std::string abc' previously declared here
   19 | string abc="abcdefghijklmnopqrstuvwxyz";
      |        ^~~
a.cc:41:8: error: redefinition of 'std::string ABC'
   41 | string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
      |        ^~~
a.cc:20:8: note: 'std::string ABC' previously declared here
   20 | string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
      |        ^~~
a.cc:42:4: error: redefinition of 'vl dx'
   42 | vl dx={-1,-1,-1,0,0,1,1,1};
      |    ^~
a.cc:21:4: note: 'vl dx' previously declared here
   21 | vl dx={-1,-1,-1,0,0,1,1,1};
      |    ^~
a.cc:43:4: error: redefinition of 'vl dy'
   43 | vl dy={1,-1,0,1,-1,1,0,-1};
      |    ^~
a.cc:22:4: note: 'vl dy' previously declared here
   22 | vl dy={1,-1,0,1,-1,1,0,-1};
      |    ^~
Language: C

#include<iostream>
#include<stdio>
using namespace std;
#define ll         		long long
#define setbits(x)      __builtin_popcountll(x)
#define zrobits(x)      __builtin_ctzll(x)


int main() {
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif

	long long a;
	float b;
	cin >> a;
	cin >> b;
	long long pro = (long long)a * b;
	cout << pro;

}



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

#include <iostream>
#include<math.h>
using namespace std;

int main(){
  	double A,B
  cin>>A>>B;
  	cout<<floor(A*B);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin>>A>>B;
      |   ^~~
a.cc:8:23: error: 'B' was not declared in this scope
    8 |         cout<<floor(A*B);
      |                       ^
Language: C

#include<iostream.h>
#include<stdio.h>
using namespace std;
#define ll         		long long
#define setbits(x)      __builtin_popcountll(x)
#define zrobits(x)      __builtin_ctzll(x)


int main() {


	long long a;
	float b;
	cin >> a;
	cin >> b;
	long long pro = (long long)a * b;
	cout << pro;

}



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

#include <stdio.h>
#include <math.h>

int main(void)
{
  double a = 0;
  double b = 0;
  double ans=0;
  int ans2=0;
  scanf("%d",&a);
  scanf("%lf",&b);

  ans =a * b;
  ans2=floor(ans);
  printf("%d",ans2);
  

Compiler output:
main.c: In function 'main':
main.c:15:3: error: expected declaration or statement at end of input
   15 |   printf("%d",ans2);
      |   ^~~~~~
Language: C

int main(void)
{
    double A,B,m;
    double m = A*B;
    int b = m;
    printf(b);

    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:12: error: redeclaration of 'm' with no linkage
    4 |     double m = A*B;
      |            ^
main.c:3:16: note: previous declaration of 'm' with type 'double'
    3 |     double A,B,m;
      |                ^
main.c:6:5: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |     printf(b);
      |     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main(void)
main.c:6:5: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    6 |     printf(b);
      |     ^~~~~~
main.c:6:5: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:12: error: passing argument 1 of 'printf' makes pointer from integer without a cast [-Wint-conversion]
    6 |     printf(b);
      |            ^
      |            |
      |            int
main.c:6:12: note: expected 'const char *' but argument is of type 'int'
Language: C

#include<bits/stdc++.h>
using namespace std;
#define ll         		long long
#define setbits(x)      __builtin_popcountll(x)
#define zrobits(x)      __builtin_ctzll(x)


int main() {


	long long a;
	float b;
	cin >> a;
	cin >> b;
	long long pro = (long long)a * b;
	cout << pro;

}



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

#include <iostream>
using namespace std;

  int A,C;
  float B,D;
  
  cin >> A >> B;
  D =A*B;
  C = D;
  cout << C <<endl;




Compiler output:
a.cc:7:3: error: 'cin' does not name a type
    7 |   cin >> A >> B;
      |   ^~~
a.cc:8:3: error: 'D' does not name a type
    8 |   D =A*B;
      |   ^
a.cc:9:3: error: 'C' does not name a type
    9 |   C = D;
      |   ^
a.cc:10:3: error: 'cout' does not name a type
   10 |   cout << C <<endl;
      |   ^~~~
Language: Java

import java.util.Scanner;
import java.io.InputStream;
import java.math.BigDecimal;

public class Main {
    
    public static void main(String[] args) {
        new Main().excute(System.in);
    }

    public void excute(InputStream in) {
        Scanner sc = new Scanner(in);
        int a = sc.nextInt();
        double b = sc.nextDouble();
        BigDecimal ba = new BigDecimal(a);
        BigDecimal bb = new BigDecimal(b);
        BigDecimal ans = ba.multiply(bb);
        int c = (int)ans;
        System.out.println(c);
        sc.close();
    }

}

Compiler output:
Main.java:18: error: incompatible types: BigDecimal cannot be converted to int
        int c = (int)ans;
                     ^
1 error
Language: C++

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

int main() {
  int A;
  double B;
  cin >> A >> B;
  double C = A * B;
  double D = C % 1;
    cout << C - D << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    9 |   double D = C % 1;
      |              ~ ^ ~
      |              |   |
      |              |   int
      |              double
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int A = 100;
  	double B = 9.23
    cin >> A >> B;
    cout << A * B << setprecision(0);
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: expected ',' or ';' before 'cin'
    8 |     cin >> A >> B;
      |     ^~~
a.cc:9:22: error: 'setprecision' was not declared in this scope
    9 |     cout << A * B << setprecision(0);
      |                      ^~~~~~~~~~~~
a.cc:2:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    1 | #include<iostream>
  +++ |+#include <iomanip>
    2 | using namespace std;
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    long long A;
    double B;
    cin >> A >> B;
    B *= 100;
    long long d = B;
    long long C = A * d;
    cout << C // 100 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: expected ';' before '}' token
   10 |     cout << C // 100 << endl;
      |              ^
      |              ;
   11 | }
      | ~
Language: C

#include<bits/stdc++.h>
using namespace std;
#define ll         		long long
#define setbits(x)      __builtin_popcountll(x)
#define zrobits(x)      __builtin_ctzll(x)


int main() {
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif

	long long a;
	float b;
	cin >> a;
	cin >> b;
	long long pro = (long long)a * b;
	cout << pro;

}



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

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

int main() {
  long long a;
  double b;
  cin >> a >> b;
  double ans;
  long long = a*b;
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected unqualified-id before '=' token
    9 |   long long = a*b;
      |             ^
Language: C++

#include <stdio.h>
int min(){
  int a;
  float b;
  cin >> a >> b;
  b = (int)b * 100;
  int ans
  ans = (a * b) / 100;
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int min()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'min'?
    5 |   cin >> a >> b;
      |   ^~~
      |   min
a.cc:8:3: error: expected initializer before 'ans'
    8 |   ans = (a * b) / 100;
      |   ^~~
a.cc:9:3: error: 'cout' was not declared in this scope
    9 |   cout << ans << endl;
      |   ^~~~
a.cc:9:11: error: 'ans' was not declared in this scope
    9 |   cout << ans << endl;
      |           ^~~
a.cc:9:18: error: 'endl' was not declared in this scope
    9 |   cout << ans << endl;
      |                  ^~~~
a.cc:10:1: warning: no return statement in function returning non-void [-Wreturn-type]
   10 | }
      | ^
Language: C++

import math ,numpy
a,b = map(float, input().split())
if(b==0.00 or a == 0):
    print(0)
else:
    print(math.trunc(a*b))


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math ,numpy
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C

#include<iostream>
using namespace std;

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

int main() {
	unsigned long long int A, iB, ans;
	float B;
	cin >> A >> B;
	iB = unsigned long long int(B);
	ans = A * iB;
	
	B -= int(B);
	B *= float(10);
	A *= unsigned long long int(B);
	A /= 10;
	ans += A;

	cout << B << "," << int(B) << endl;
	B -= int(B);
	cout << B << "," << int(B) << endl;
	B *= float(10);
	A *= unsigned long long int(B);
	A /= 100;
	ans += A;

	cout << ans;
}

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

#include <iostream>
using namespace std;

float main(){
  int A,C;
  float B,D;
  
  cin >> A >> B;
  D =A*B;
  C = D;
  cout << C <<endl;

return 0;
}


Compiler output:
a.cc:4:1: error: '::main' must return 'int'
    4 | float main(){
      | ^~~~~
Language: C++

import java.util.*;

class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		System.out.print((long)(sc.nextDouble() * sc.nextDouble()));
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:15: error: expected ':' before 'static'
    4 |         public static void main(String[] args){
      |               ^~~~~~~
      |               :
a.cc:4:33: error: 'String' has not been declared
    4 |         public static void main(String[] args){
      |                                 ^~~~~~
a.cc:4:42: error: expected ',' or '...' before 'args'
    4 |         public static void main(String[] args){
      |                                          ^~~~
a.cc:8:2: error: expected ';' after class definition
    8 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:5:17: error: 'Scanner' was not declared in this scope
    5 |                 Scanner sc = new Scanner(System.in);
      |                 ^~~~~~~
a.cc:6:17: error: 'System' was not declared in this scope
    6 |                 System.out.print((long)(sc.nextDouble() * sc.nextDouble()));
      |                 ^~~~~~
a.cc:6:41: error: 'sc' was not declared in this scope
    6 |                 System.out.print((long)(sc.nextDouble() * sc.nextDouble()));
      |                                         ^~
Language: C

int main(void)
{
    float A,B,m;
    double m = A*B;
    int b = m;
    printf(b);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:12: error: conflicting types for 'm'; have 'double'
    4 |     double m = A*B;
      |            ^
main.c:3:15: note: previous declaration of 'm' with type 'float'
    3 |     float A,B,m;
      |               ^
main.c:6:5: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |     printf(b);
      |     ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main(void)
main.c:6:5: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    6 |     printf(b);
      |     ^~~~~~
main.c:6:5: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:12: error: passing argument 1 of 'printf' makes pointer from integer without a cast [-Wint-conversion]
    6 |     printf(b);
      |            ^
      |            |
      |            int
main.c:6:12: note: expected 'const char *' but argument is of type 'int'
Language: C++

    #include<iostream>
    using namespace std;
    int main()
    {
      int a, c;
        float b;
        scanf_s("%d %f", &a, &b);
            
        c = a * b;
     
        printf("%d", c);
        return 0;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |         scanf_s("%d %f", &a, &b);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int a, c;
    float b;
    scanf_s("%d %f", &a, &b);
        
    c = a * b;

    printf("%d", c);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |     scanf_s("%d %f", &a, &b);
      |     ^~~~~~~
      |     scanf
Language: C++

#include <iostream>
using namespace std
 main(void){
  int A,C;
  float B,D;
  
  cin >> A >> B;
  D =A*B;
  C = D;
  cout << C <<endl;


}


Compiler output:
a.cc:2:20: error: expected ';' before 'main'
    2 | using namespace std
      |                    ^
      |                    ;
    3 |  main(void){
      |  ~~~~               
a.cc:3:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    3 |  main(void){
      |  ^~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int A = 100;
	double B = 15.86;
    cin >> A >> B;
    cout << A * B << setprecision(0);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: 'setprecision' was not declared in this scope
    9 |     cout << A * B << setprecision(0);
      |                      ^~~~~~~~~~~~
a.cc:2:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    1 | #include<iostream>
  +++ |+#include <iomanip>
    2 | using namespace std;
Language: C++

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

int main() {
	long long int A=0,C=0;
	double B=0;
	cin >> A >> B;
	C = log10(A) + log(B);
	C = pow(10, C);
	cout << long long (A * B);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: expected primary-expression before 'long'
   11 |         cout << long long (A * B);
      |                 ^~~~
Language: C++

#include <iostream>

int main()
{
    int a, c;
    float b;
    scanf_s("%d %f", &a, &b);
        
    c = a * b;

    printf("%d", c);
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |     scanf_s("%d %f", &a, &b);
      |     ^~~~~~~
      |     scanf
Language: C++

#include <iostream>
#include <cmath>
#include <bits/stdc++.h> 
using namespace std;
#define endl "\n"
typedef long long int ll;
int main(){
long double n,m
   cin>>n>>m;
long double re =n*m;
  cout<<floor(re);

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: expected initializer before 'cin'
    9 |    cin>>n>>m;
      |    ^~~
a.cc:10:19: error: 'm' was not declared in this scope
   10 | long double re =n*m;
      |                   ^
Language: C++

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

int main() {
  long long double a,b;
  long long int s;
  cin >> a >> b;
  s = (a * b) % 1;
  cout << s;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'long long' specified with 'double'
    5 |   long long double a,b;
      |        ^~~~
a.cc:5:8: error: 'long long' specified with 'double'
a.cc:8:15: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    8 |   s = (a * b) % 1;
      |       ~~~~~~~ ^ ~
      |          |      |
      |          double int
Language: C

#include <iostream>
#include <cstdlib>
#include <iomanip>
 
int main() {
    long double a, b;
    std::cin >> a >> b;   
    
    std::cout << std::fixed << std::setprecision(0) << a * b << std::endl;
 
    return 0;
}

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

#inlude<stdio.h>
typedef long long l;
typedef double d;
int main(){
	l a,sum;
	d b;
	int c;
	scanf("%lld%lf",&a,&b);
	c=(int)(b*100);
	sum=(a*c)/100;
	printf("%lld",sum);
}


Compiler output:
main.c:1:2: error: invalid preprocessing directive #inlude; did you mean #include?
    1 | #inlude<stdio.h>
      |  ^~~~~~
      |  include
main.c: In function 'main':
main.c:8:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    8 |         scanf("%lld%lf",&a,&b);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #inlude<stdio.h>
main.c:8:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    8 |         scanf("%lld%lf",&a,&b);
      |         ^~~~~
main.c:8:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:11:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   11 |         printf("%lld",sum);
      |         ^~~~~~
main.c:11:9: 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]
main.c:11:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include(stdio.h>
int main(void){
  int a;
  double b;
  
  scanf("%d", &a);
  scanf("%lf", &b);
  
  printf("%d",(int)a*b);
  
  return 0;
}

Compiler output:
main.c:1:9: error: #include expects "FILENAME" or <FILENAME>
    1 | #include(stdio.h>
      |         ^
main.c: In function 'main':
main.c:6:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    6 |   scanf("%d", &a);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #include(stdio.h>
main.c:6:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    6 |   scanf("%d", &a);
      |   ^~~~~
main.c:6:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:9:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    9 |   printf("%d",(int)a*b);
      |   ^~~~~~
main.c:9:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:9:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:9:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

#include <bits/stdc++.h> 
using namespace std;
#define endl "\n"
typedef long long int ll;
int main(){
long double n,m
   cin>>n>>m;
long double re =n*m;
  cout<<floor(re);

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: expected initializer before 'cin'
    7 |    cin>>n>>m;
      |    ^~~
a.cc:8:19: error: 'm' was not declared in this scope
    8 | long double re =n*m;
      |                   ^
Language: C++

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

int main() {
double a,b;
cin >> a >> b;
cout << floor(a*b) << endl;
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'floor' was not declared in this scope
    8 | cout << floor(a*b) << endl;
      |         ^~~~~
Language: C

#include<stdio.h>
int main(void)
{
  double a,b;
  int b;
  
  scanf("%lf",&a);
  scanf("%lf",&b);
  c=a*b;
  
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:7: error: conflicting types for 'b'; have 'int'
    5 |   int b;
      |       ^
main.c:4:12: note: previous declaration of 'b' with type 'double'
    4 |   double a,b;
      |            ^
main.c:9:3: error: 'c' undeclared (first use in this function)
    9 |   c=a*b;
      |   ^
main.c:9:3: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> P;
ll Mod = 1000000007;
int main() {
  ll A;
  double B;
  cin >> A >> B;
  ll ans = 0;
  ll sa = (A / 100) * 100;
  double s = sa;
  s = (s * B);
  ll ua = A % 100;
  double u = ua;
  u = (u * B);
  double ansd = s + u;
  ans = ansd
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:13: error: expected ';' before 'cout'
   18 |   ans = ansd
      |             ^
      |             ;
   19 |   cout << ans << endl;
      |   ~~~~
Language: C++

#include<iostream>
using namespace std;

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

int main() {
	unsigned long long int A, iB, ans;
	float B;
	cin >> A >> B;
	iB = unsigned long long int(B);
	ans = A * iB;
	
	B -= int(B);
	B *= float(10);
	A *= unsigned long long int(B);
	A /= 10;
	ans += A;

	B -= int(B);
	B *= float(10);
	A *= unsigned long long int(B);
	A /= 100;
	ans += A;

	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: expected primary-expression before 'unsigned'
   10 |         iB = unsigned long long int(B);
      |              ^~~~~~~~
a.cc:15:14: error: expected primary-expression before 'unsigned'
   15 |         A *= unsigned long long int(B);
      |              ^~~~~~~~
a.cc:21:14: error: expected primary-expression before 'unsigned'
   21 |         A *= unsigned long long int(B);
      |              ^~~~~~~~
Language: C

int main(){
  int a;
  float b;
  scanf(%d %f,&a,&b);
  int c=a*b;

Compiler output:
main.c: In function 'main':
main.c:4:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    4 |   scanf(%d %f,&a,&b);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int main(){
main.c:4:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    4 |   scanf(%d %f,&a,&b);
      |   ^~~~~
main.c:4:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:4:9: error: expected expression before '%' token
    4 |   scanf(%d %f,&a,&b);
      |         ^
main.c:5:3: error: expected declaration or statement at end of input
    5 |   int c=a*b;
      |   ^~~
Language: C++

#include <iostream>
using namespace std
  int main(){
  int A,C;
  float B,D;
  
  cin >> A >> B;
  D =A*B;
  C = D;
  cout << C <<endl;


}


Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 |   int main(){
      |   ~~~
Language: C

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

int main() {
double A,B;
int C;
cin >> A >> B;
C=floor(A*B);
cout << C << endl;
}


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

#include <cstdio>
using namespace std;
int main()
{
    double a, b, r;
    scanf("%lf%lf", &a, &b);
    r = a*b;
    printf("%.0lf", r);
    cout<<r;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout<<r;
      |     ^~~~
a.cc:2:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <cstdio>
  +++ |+#include <iostream>
    2 | using namespace std;
Language: C++

#include <bits/stdc++.h> 
using namespace std;
#define endl "\n"
typedef long long int ll;
int main(){
 std::uint64_t n,m
   cin>>n>>m;
 std::uint64_t re =n*m;
  cout<<floor(re);

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: expected initializer before 'cin'
    7 |    cin>>n>>m;
      |    ^~~
a.cc:8:22: error: 'm' was not declared in this scope
    8 |  std::uint64_t re =n*m;
      |                      ^
Language: C++

#include <bits/stdc++.h>
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
// 任意長整数型
using Bint = mp::cpp_int;
// 仮数部が1024ビットの浮動小数点数型(TLEしたら小さくする)
using Real = mp::number<mp::cpp_dec_float<1024>>;
#define REP(i, n) for (int i = 0; i < (n); i++)
using namespace std;
using ll = long long;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    Bint a;
    Real b;
    cin >> a >> b;
    Bint ans = a * b;
    cout << ans << '\n';
    return 0;
}

Compiler output:
a.cc:2:10: fatal error: boost/multiprecision/cpp_dec_float.hpp: No such file or directory
    2 | #include <boost/multiprecision/cpp_dec_float.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

include <iostream>
using namespace std
  int main(){
  int A,C;
  float B,D;
  
  cin >> A >> B;
  D =A*B;
  C = D;
  cout << C <<endl;


}

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

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

int main() {
	long long int A=0;
	double B=0;
	cin >> A >> B;
	cout << long long (A * B);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: expected primary-expression before 'long'
    9 |         cout << long long (A * B);
      |                 ^~~~
Language: C++

#include <iostream>
using namespace std;

int main() {
double A,B;
int C;
cin >> A >> B;
C=floor(A*B);
cout << C << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'floor' was not declared in this scope
    8 | C=floor(A*B);
      |   ^~~~~