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

# -*- coding: utf-8 -*-
import math
from decimal import *

A, B = map(Decimal,input().split())

print(math.floor(Decimal(A)*Decimal(B)))

Compiler output:
a.cc:1:3: error: invalid preprocessing directive #-
    1 | # -*- coding: utf-8 -*-
      |   ^
a.cc:2:1: error: 'import' does not name a type
    2 | import math
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
Language: Java

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

public class E {


    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        long a=sc.nextLong();
        long b=(long)(sc.nextDouble()*10000);
        long ans=(a*b)/10000;
        System.out.println(ans);

    }
}


Compiler output:
Main.java:4: error: class E is public, should be declared in a file named E.java
public class E {
       ^
1 error
Language: C++

import Foundation

extension String {
    subscript(i: Int) -> Character {
        self[index(startIndex, offsetBy: i)]
    }
}

func inputInt() -> Int {
    Int(readLine()!)!
}

func inputDouble() -> Double {
    Double(readLine()!)!
}

func inputArray() -> [String] {
    readLine()!.components(separatedBy: " ")
}

func inputIntArray() -> [Int] {
    inputArray().map({ Int($0)! })
}

func inputDoubleArray() -> [Double] {
    inputArray().map({ Double($0)! })
}

let i = inputDoubleArray()
let a = i[0]
let b = i[1] * 100

print(Int(a * b / 100))


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import Foundation
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:9:1: error: 'func' does not name a type
    9 | func inputInt() -> Int {
      | ^~~~
a.cc:13:1: error: 'func' does not name a type
   13 | func inputDouble() -> Double {
      | ^~~~
a.cc:17:1: error: 'func' does not name a type
   17 | func inputArray() -> [String] {
      | ^~~~
a.cc:21:1: error: 'func' does not name a type
   21 | func inputIntArray() -> [Int] {
      | ^~~~
a.cc:25:1: error: 'func' does not name a type
   25 | func inputDoubleArray() -> [Double] {
      | ^~~~
a.cc:29:1: error: 'let' does not name a type
   29 | let i = inputDoubleArray()
      | ^~~
Language: C++

#include <bits/stdc++.h>
#define lint long long
#define ALL(x) (x).begin(),(x).end()
#define PB push_back
#define MP make_pair
using namespace std;


int main(){
  //cout << fixed << setprecision(12);
  lint A;
  double B;
  cin >> A >> B;
  B *= 100;
  B += 0.1
  //cout << B << endl;
  lint C = B / 1;
  //cout << C << endl;
  
  lint ans = (A * C) / 100;
  cout << ans << endl;
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: expected ';' before 'long'
   15 |   B += 0.1
      |           ^
      |           ;
a.cc:20:19: error: 'C' was not declared in this scope
   20 |   lint ans = (A * C) / 100;
      |                   ^
Language: C++

a=input().split()
#print(a[0])
ia=int(a[0])

ib=float(a[1])
b=ia*ib
c=int(b)

if(c>b):
    c-=1

print('{:.0f}'.format(c))

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #print
    2 | #print(a[0])
      |  ^~~~~
a.cc:12:7: warning: multi-character literal with 6 characters exceeds 'int' size of 4 bytes
   12 | print('{:.0f}'.format(c))
      |       ^~~~~~~~
a.cc:1:1: error: 'a' does not name a type
    1 | a=input().split()
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main() {
  long long A = 1;
  double B = 1;
  cin >> A >> B;
  int C = B * 100 + 0.5;
  A *= C;
  A /= 100
  cout << A << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: expected ';' before 'cout'
   11 |   A /= 100
      |           ^
      |           ;
   12 |   cout << A << endl;
      |   ~~~~
Language: C++

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

#define rep(i,n) for(i = 0;i < n;++i)
#define all(v) v.begin(), v.end()
using ll = long long;

int main()
{
    ll i,j;
    ll a;
    double b;
    cin >> a >> b;
    ll b1 = ronud(b*100);
    ll c = a*b1;
    cout << c/100 << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'ronud' was not declared in this scope; did you mean 'round'?
   14 |     ll b1 = ronud(b*100);
      |             ^~~~~
      |             round
Language: C++

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

int main()
{
	long double a,b;
    cin >> a>>b;
    cout << (long long int)(a*b1);
    
	return 0;
}

/*

Get-Content in.txt | ./a > out.txt



*/


Compiler output:
a.cc: In function 'int main()':
a.cc:8:31: error: 'b1' was not declared in this scope; did you mean 'b'?
    8 |     cout << (long long int)(a*b1);
      |                               ^~
      |                               b
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using namespace std;
typedef pair<int, int> P;
typedef long long lll;

int64_t aa[100010];
int main()
{
  lll a,x = 0,q = 0;
  string b, y;
  
  cin >> a >> b;
  
  rep(i, b.size()){
    if(b[i] != '.'){
		y[q++] = b[i];
    }
  }
  x = atoll(y);
  ll c = a*x;
  
  cout << c / 100 << endl;
  
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   21 |   x = atoll(y);
      |             ^
      |             |
      |             std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:113:55: note:   initializing argument 1 of 'long long int atoll(const char*)'
  113 | __extension__ extern long long int atoll (const char *__nptr)
      |                                           ~~~~~~~~~~~~^~~~~~
a.cc:22:3: error: 'll' was not declared in this scope; did you mean 'lll'?
   22 |   ll c = a*x;
      |   ^~
      |   lll
a.cc:24:11: error: 'c' was not declared in this scope
   24 |   cout << c / 100 << endl;
      |           ^
Language: C++

/*
*          Name : chaitanya
*
*     Institute : ANITS,Visakhapatnam
*
*/
#include<cstdio>
#include<iostream>
#include<sstream>
#include<fstream>
#include<iomanip>
#include<algorithm>
#include<cmath>
#include<complex>
#include<cstring>
#include<vector>
#include<list>
#include<queue>
#include<stack>
#include<set>
#include<map>
#include<bitset>
#include<numeric>
#include<limits>
#include<climits>
#include<cfloat>
#include<functional>
#include<iterator>
#include <random>
#include<sstream>
#define infy  1000000000
#define all(x) begin(x),end(x)
#define ll long long int
#define ff first
#define ss second
#define pb push_back
const ll m = 1000000007;
#pragma GCC optimization ("O3")
const int N = 1000010;
using namespace std;

int main()
{
  //"Don't regret anything you do, because in the end it makes you who you are."
  LL a, b = 0;
  cin >> a;
  string s;
  cin >> s;
  for (auto e : s) {
    if (e != '.') {
      b += (e-'0');
      b *= 10;
    }
  }
  b /= 10;
 
  cout << a*b/100 << "\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:45:3: error: 'LL' was not declared in this scope; did you mean 'll'?
   45 |   LL a, b = 0;
      |   ^~
      |   ll
a.cc:46:10: error: 'a' was not declared in this scope
   46 |   cin >> a;
      |          ^
a.cc:51:7: error: 'b' was not declared in this scope
   51 |       b += (e-'0');
      |       ^
a.cc:55:3: error: 'b' was not declared in this scope
   55 |   b /= 10;
      |   ^
Language: C++

#include <cmath>
#include <cstdio>
#include <cstring>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <string>
#include <queue>
#include <set>
#include <map>
#include <vector>
using namespace std;
#define FOR(__I,__N) for (int __I = 0; __I < __N; ++__I)

typedef long long int64;
typedef pair<int,int> pii;
typedef pair<int64, int64> pll;



int main(){
	int64 A;
	double dB;
	cin >> A >> dB;
	//int B = dB*64+dB*32+dB*4;
	int B = round(db*100);
	int64 ans = A*B/100;
	printf("%lld\n",ans);
}



Compiler output:
a.cc: In function 'int main()':
a.cc:26:23: error: 'db' was not declared in this scope; did you mean 'dB'?
   26 |         int B = round(db*100);
      |                       ^~
      |                       dB
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  long long double a, b;
  cin >> a >> b;
  cout << a*b << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:8: error: 'long long' specified with 'double'
    4 |   long long double a, b;
      |        ^~~~
a.cc:4:8: error: 'long long' specified with 'double'
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using namespace std;
typedef pair<int, int> P;
typedef long long ll;

int64_t aa[100010];
int main()
{
  ll a,x = 0,q = 0;
  string b, y;
  
  cin >> a >> b;
  
  rep(i, b.size()){
    if(b[i] != '.'){
		y[q++] = b[i];
    }
  }
  x = atoll(y);
  ll c = a*x;
  
  cout << c / 100 << endl;
  
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   21 |   x = atoll(y);
      |             ^
      |             |
      |             std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:113:55: note:   initializing argument 1 of 'long long int atoll(const char*)'
  113 | __extension__ extern long long int atoll (const char *__nptr)
      |                                           ~~~~~~~~~~~~^~~~~~
Language: C++

#include <bits/stdc++.h>
#define ll long long int
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL)
#define foin for (int i = 0; i < n; i++)
#define fojn for (int j = 0; j < n; j++)
#define vi vector<int>
#define vil vector<ll>
#define omii map<int,int>
#define omlii map<ll,ll>
#define umii unordered_map<int,int>
#define umlii unordered_map<ll,ll>
#define pi pair<int,int>
#define pli pair<ll,ll>
#define MAX (ll)1e18
using namespace std;


void solve() {
	ll a;
	long double b;
	cin >> a >> b;
	ans = a * b;
	cout <<(ll)c;
}

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


	solve();


}

Compiler output:
a.cc: In function 'void solve()':
a.cc:22:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   22 |         ans = a * b;
      |         ^~~
      |         abs
a.cc:23:20: error: 'c' was not declared in this scope
   23 |         cout <<(ll)c;
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using ld = long double;
const ll ATCODER_AMARI = 1000000007; //10^9 + 7
const ll INF = 10000000000000;
//階乗できるよ
ll kaizyo(ll k){
  ll sum = 1;
  for(int i = 1 ; i < k + 1; i++) {
    sum *= i;
    sum = sum % ATCODER_AMARI;
  }
  return sum;
}

int main() {
  unsigned long long a; cin >> a;
  unsigned double b; cin >> b;
  unsigned long long bl = b * 100;

  unsigned long long ans = a * bl;
  unsigned long long amari = ans % 100;
  ans = ans - amari;
  ans = ans / 100;
  //ll ansa = floor(ans);
  cout << ans << endl; 
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:3: error: 'unsigned' specified with 'double'
   20 |   unsigned double b; cin >> b;
      |   ^~~~~~~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:6:18: error: 'floot' was not declared in this scope; did you mean 'floor'?
    6 |     cout << long(floot(A*B)) << endl;
      |                  ^~~~~
      |                  floor
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using namespace std;
typedef pair<int, int> P;
typedef long long ll;

int64_t aa[100010];
int main()
{
  ll a,x = 0;
  string b, y = "";
  
  cin >> a >> b;
  
  rep(i, b.size()){
    if(b[i] != '.'){
		y += b[i];
    }
  }
  x = atoll(y);
  ll c = a*x;
  
  cout << c / 100 << endl;
  
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   21 |   x = atoll(y);
      |             ^
      |             |
      |             std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:113:55: note:   initializing argument 1 of 'long long int atoll(const char*)'
  113 | __extension__ extern long long int atoll (const char *__nptr)
      |                                           ~~~~~~~~~~~~^~~~~~
Language: C++

#include<bits/c++.h>
using namespace std;
int main() {
    long double A,B;
    cin >> A >> B;
    cout << long(floot(A*B)) << endl;
}

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

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
#define repr(i,a,b) for(int i=a;i<b;i++)
#define rep(i,n) for(ll i=0;i<n;i++)
#define invrepr(i,a,b) for(int i=b-1;i>=a;i--)
#define invrep(i,n) invrepr(i,0,n)
#define repitr(itr,a) for(auto itr=a.begin();itr!=a.end();++itr)
#define P pair<int,int>
const int MOD=1e9+7;
const ll INF=1e16;


#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
#define repr(i,a,b) for(int i=a;i<b;i++)
#define rep(i,n) for(ll i=0;i<n;i++)
#define invrepr(i,a,b) for(int i=b-1;i>=a;i--)
#define invrep(i,n) invrepr(i,0,n)
#define repitr(itr,a) for(auto itr=a.begin();itr!=a.end();++itr)
#define P pair<int,int>
const int MOD=1e9+7;
const ll INF=1e16;
 
 
int main() {
    ios_base::sync_with_stdio(false); 
    
    ll a;
    double b;
    cin >> a >> b; 
    ll ib=ll(b*10.0);
    ll two=a*ib;
    ll iib=b*100.0-10.0*ib;
    ll three=a*iib;
    ll ans=two/10+three/100;
    if ((two%10)*10+(three%100)>=100) ++ans;
    cout << fixed << setprecision(20) << ans << endl;
    
    return 0;
}

Compiler output:
a.cc:23:11: error: redefinition of 'const int MOD'
   23 | const int MOD=1e9+7;
      |           ^~~
a.cc:10:11: note: 'const int MOD' previously defined here
   10 | const int MOD=1e9+7;
      |           ^~~
a.cc:24:10: error: redefinition of 'const ll INF'
   24 | const ll INF=1e16;
      |          ^~~
a.cc:11:10: note: 'const ll INF' previously defined here
   11 | const ll INF=1e16;
      |          ^~~
Language: C++

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

using ll = long long;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  
  ll a;
  string s;
  cin >> a >> b;
  
  ll b = ((s[0] - '0') * 100 + (s[2] - '0') * 10 + (s[3] - '0'));
  
  cout << (a * b / 100) << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:15: error: 'b' was not declared in this scope
   12 |   cin >> a >> b;
      |               ^
Language: C++

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

int main() {
  long long n, a, b, c, ans;
  cin >> n;
  decimal(3, 2) m, d, e;
  cin >> m;
  e = m * 100;
  a = e;
  c = a / 100;
  d = c;
  m = m - d;
  m = m * 100;
  long long k;
  k = m;
  
  b = (n * k) / 100;
  ans = n * c + b;
  cout << ans;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'decimal' was not declared in this scope; did you mean 'dfmal'?
    7 |   decimal(3, 2) m, d, e;
      |   ^~~~~~~
      |   dfmal
a.cc:8:10: error: 'm' was not declared in this scope
    8 |   cin >> m;
      |          ^
a.cc:9:3: error: 'e' was not declared in this scope
    9 |   e = m * 100;
      |   ^
a.cc:12:3: error: 'd' was not declared in this scope
   12 |   d = c;
      |   ^
Language: C++

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  long long A;
double B;
cin>>A>>B;
cout<< A*(int)(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
   10 | cout<< A*(int)(B*100＋0.5)/100<<endl;
      |                  ^~~~~~~~
Language: C++

#include <bits/stdc++.h>    
int main() {
        
        LL a;
        double b;
        cin >> a >> b;
        LL c=(b+0.000001)*100;
        LL s=a*c;
        s/=100;
        cout << s << '\n';
        return 0;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'LL' was not declared in this scope
    4 |         LL a;
      |         ^~
a.cc:6:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |         cin >> a >> b;
      |         ^~~
      |         std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:16: error: 'a' was not declared in this scope
    6 |         cin >> a >> b;
      |                ^
a.cc:7:11: error: expected ';' before 'c'
    7 |         LL c=(b+0.000001)*100;
      |           ^~
      |           ;
a.cc:8:11: error: expected ';' before 's'
    8 |         LL s=a*c;
      |           ^~
      |           ;
a.cc:9:9: error: 's' was not declared in this scope
    9 |         s/=100;
      |         ^
a.cc:10:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |         cout << s << '\n';
      |         ^~~~
      |         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 <bits/stdc++.h>
#include <iostream>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout<< A*(int)(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
   10 | cout<< A*(int)(B*100＋0.5)/100<<endl;
      |                  ^~~~~~~~
Language: C++

import math
import decimal
A,B=map(float,input().split())
A=decimal.Decimal(A)
B=decimal.Decimal(B)
c=int(A*B)
print(c)


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

int main() {
    
    LL a;
    double b;
    cin >> a >> b;
    LL c=(b+0.000001)*100;
    LL s=a*c;
    s/=100;
    cout << s << '\n';
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'LL' was not declared in this scope
    3 |     LL a;
      |     ^~
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin >> a >> b;
      |     ^~~
a.cc:5:12: error: 'a' was not declared in this scope
    5 |     cin >> a >> b;
      |            ^
a.cc:6:7: error: expected ';' before 'c'
    6 |     LL c=(b+0.000001)*100;
      |       ^~
      |       ;
a.cc:7:7: error: expected ';' before 's'
    7 |     LL s=a*c;
      |       ^~
      |       ;
a.cc:8:5: error: 's' was not declared in this scope
    8 |     s/=100;
      |     ^
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout << s << '\n';
      |     ^~~~
Language: C++


#include <bits/stdc++.h>
using ll = long long;
using namespace std;
#define rep(i, n) for (int i = 0, i##_len = (int)(n); i < i##_len; i++)
#define reps(i, n) for (int i = 1, i##_len = (int)(n); i <= i##_len; i++)
#define rrep(i, n) for (int i = ((int)(n)-1); i >= 0; i--)
#define rreps(i, n) for (int i = ((int)(n)); i > 0; i--)
#define repi(i, x) for (auto i = (x).begin(), i##_fin = (x).end(); i != i##_fin; i++)
#define all(x) (x).begin(), (x).end()
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define solve(a) ((a) ? "Yes" : "No")
typedef vector<int> Vi;
typedef vector<Vi> VVi;
typedef pair<int, int> Pi;
typedef vector<Pi> VPi;
typedef vector<long long> V;
typedef vector<V> VV;
typedef pair<long long, long long> P;
typedef vector<P> VP;
template <class T>
inline bool chmax(T &a, T b)
{
	if (a < b)
	{
		a = b;
		return 1;
	}
	return 0;
}
template <class T>
inline bool chmin(T &a, T b)
{
	if (a > b)
	{
		a = b;
		return 1;
	}
	return 0;
}
const long long INFLL = 1LL << 60;
const int INF = 1 << 30;
const double PI = acos(-1);
int main()
{
	ll a;
	double b;
	cin >> a >> b
	ll ans=a*(100*b+0.5);
	printf("%lld\n", ans / 100LL);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:51:22: error: expected ';' before 'll'
   51 |         cin >> a >> b
      |                      ^
      |                      ;
   52 |         ll ans=a*(100*b+0.5);
      |         ~~            
a.cc:53:26: error: 'ans' was not declared in this scope; did you mean 'abs'?
   53 |         printf("%lld\n", ans / 100LL);
      |                          ^~~
      |                          abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout<< A*(int)(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
    9 | cout<< A*(int)(B*100＋0.5)/100<<endl;
      |                  ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using namespace std;
typedef pair<int, int> P;

int64_t aa[100010];
int main()
{
  int64_t a,x = 0;
  string b;
  
  cin >> a >> b;
  
  rep(i, b.size()){
    if(b[i] != '.'){
		x += atoi(b[i]);
        x *= 10;
    }
  }
  int64_t c = a*x;
  
  cout << c / 100 << endl;
  
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: invalid conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to 'const char*' [-fpermissive]
   17 |                 x += atoi(b[i]);
      |                      ~~~~^~~~~~
      |                          |
      |                          __gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:105:30: note:   initializing argument 1 of 'int atoi(const char*)'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout << fixed << setprecision(0);
cout<< A*(int)(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
   10 | cout<< A*(int)(B*100＋0.5)/100<<endl;
      |                  ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout << fixed << setprecision(0);
cout<< A*i(nt)(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: 'nt' was not declared in this scope; did you mean 'int'?
   10 | cout<< A*i(nt)(B*100＋0.5)/100<<endl;
      |            ^~
      |            int
a.cc:10:10: error: 'i' was not declared in this scope
   10 | cout<< A*i(nt)(B*100＋0.5)/100<<endl;
      |          ^
a.cc:10:18: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
   10 | cout<< A*i(nt)(B*100＋0.5)/100<<endl;
      |                  ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using ld = long double;
const ll ATCODER_AMARI = 1000000007; //10^9 + 7
const ll INF = 10000000000000;
//階乗できるよ
ll kaizyo(ll k){
  ll sum = 1;
  for(int i = 1 ; i < k + 1; i++) {
    sum *= i;
    sum = sum % ATCODER_AMARI;
  }
  return sum;
}

int main() {
  unsigned long long A;
    long double B;
    cin >> A >> B;
    ull sum = (A * B);
    cout << fixed << setprecision(10) << sum << "\n";
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:5: error: 'ull' was not declared in this scope; did you mean 'll'?
   22 |     ull sum = (A * B);
      |     ^~~
      |     ll
a.cc:23:42: error: 'sum' was not declared in this scope
   23 |     cout << fixed << setprecision(10) << sum << "\n";
      |                                          ^~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
int main(){
  ll a,b;ld bb;cin>>a>>bb;
  b = bb*100LD;
  cout << a*b / 100LL << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: unable to find numeric literal operator 'operator""LD'
    8 |   b = bb*100LD;
      |          ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using ld = long double;
const ll ATCODER_AMARI = 1000000007; //10^9 + 7
const ll INF = 10000000000000;
//階乗できるよ
ll kaizyo(ll k){
  ll sum = 1;
  for(int i = 1 ; i < k + 1; i++) {
    sum *= i;
    sum = sum % ATCODER_AMARI;
  }
  return sum;
}

int main() {
  ull A;
    long double B;
    cin >> A >> B;
    ull sum = (A * B);
    cout << fixed << setprecision(10) << sum << "\n";
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: 'ull' was not declared in this scope; did you mean 'll'?
   19 |   ull A;
      |   ^~~
      |   ll
a.cc:21:12: error: 'A' was not declared in this scope
   21 |     cin >> A >> B;
      |            ^
a.cc:22:8: error: expected ';' before 'sum'
   22 |     ull sum = (A * B);
      |        ^~~~
      |        ;
a.cc:23:42: error: 'sum' was not declared in this scope
   23 |     cout << fixed << setprecision(10) << sum << "\n";
      |                                          ^~~
Language: C

#include<stdio.h>
int main() {
  unsigned long a;
  double b;
  scanf("%llu %lf", &a, &b);
  int = b * 100;
  a*=b;
  a/=100;
  printf("%llu\n", a);
}


Compiler output:
main.c: In function 'main':
main.c:6:7: error: expected identifier or '(' before '=' token
    6 |   int = b * 100;
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout << fixed << setprecision(0);
cout<< A*int(B*100＋0.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: unable to find numeric literal operator 'operator""\U0000ff0b0.5'
   10 | cout<< A*int(B*100＋0.5)/100<<endl;
      |                ^~~~~~~~
Language: C++

using namespace std;
int main(){
long double a,b;
  cin >> a>>b;
  cout <<std::setprecision(18)<<floor(a*b);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   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 | using namespace std;
a.cc:5:3: error: 'cout' was not declared in this scope
    5 |   cout <<std::setprecision(18)<<floor(a*b);
      |   ^~~~
a.cc:5:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:5:15: error: 'setprecision' is not a member of 'std'
    5 |   cout <<std::setprecision(18)<<floor(a*b);
      |               ^~~~~~~~~~~~
a.cc:1:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
  +++ |+#include <iomanip>
    1 | using namespace std;
a.cc:5:33: error: 'floor' was not declared in this scope
    5 |   cout <<std::setprecision(18)<<floor(a*b);
      |                                 ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using vl = vector<ll>;
template<class T> using vc = vector<T>;
template<class T> using vvc = vector<vector<T>>;

#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define repr(i, n) for (ll i = (n)-1; i >= 0; i--)
#define repe(i, l, r) for (ll i = (l); i < (r); i++)
#define reper(i, l, r) for (ll i = (r)-1; i >= (l); i--)
#define repa(i,n) for (auto& i: n)

template<class T> inline bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> inline bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
void init() {cin.tie(0);ios::sync_with_stdio(false);cout << fixed << setprecision(80);}

#ifdef DEBUG
template <class T, class N> void verr(const T& a, const N& n) { rep(i, n) cerr << a[i] << " "; cerr << "\n" << flush; }
ll dbgt = 1; void err() { cerr << "passed " << dbgt++ << "\n" << flush; }
template<class H, class... T> void err(H&& h,T&&... t){ cerr<< h << (sizeof...(t)?" ":"\n") << flush; if(sizeof...(t)>0) err(forward<T>(t)...); }
#endif

const ll INF = 5e18;
const ld EPS = 1e-11;
const ld PI = acos(-1.0L);
const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
//--------------------------------------------------------------------------------//

int main() {
    init();
    ll a, bi;
    ld b;
    cin >> a >> b;
    bi = (ll)(b * 100 + EPS);
    err(a, bi);
    cout << a * bi / 100 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:40:5: error: 'err' was not declared in this scope; did you mean 'erf'?
   40 |     err(a, bi);
      |     ^~~
      |     erf
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i,N) for(int i=0; i<N; i++){    ;
int main() {
  int64_t A;
double B;
cin>>A>>B;
cout << fixed << setprecision(0);
cout<< A*int(B*100＋０.5)/100<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: unable to find numeric literal operator 'operator""\U0000ff0b\U0000ff10.5'
   10 | cout<< A*int(B*100＋０.5)/100<<endl;
      |                ^~~~~~~~~
Language: Java

import java.util.*;

public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    
    long a[n] = new long[n];
    long sum = 1;
    for(int i = 0; i < n; i++){
      a[i] = sc.nextLong();
      sum *= a[i];
    }
    
    if(sum > 1000000000000000000){
      System.out.println(-1);
    }else{
      System.out.println(sum);
    }
  }
}

Compiler output:
Main.java:8: error: ']' expected
    long a[n] = new long[n];
           ^
Main.java:8: error: ';' expected
    long a[n] = new long[n];
            ^
Main.java:8: error: not a statement
    long a[n] = new long[n];
                ^
Main.java:15: error: integer number too large
    if(sum > 1000000000000000000){
             ^
4 errors
Language: C++

//“Make it work, make it right, make it fast.” – Kent Beck
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double dd;
int siz = 1e8+1;
const int MOD = 1e9 + 7;
#define endl '\n'
#define deb(x) cout << #x << " = " << x << endl;

void solve(){
	long double a, b;
	cin >> a >> b;
	unsigned ll ans = ll(a*b);
	cout << (ans) << endl;
}

int main(){
	#ifndef RAY
		//freopen("input.txt", "r", stdin);
	#endif
		ios::sync_with_stdio(false);
		cin.tie(nullptr);
		int t = 1;
		//cin >> t;
		while(t--){
			solve();
		}
	return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:14:21: error: expected initializer before 'ans'
   14 |         unsigned ll ans = ll(a*b);
      |                     ^~~
a.cc:15:18: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |         cout << (ans) << endl;
      |                  ^~~
      |                  abs
Language: C++

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

#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define rep(i, x, y)   for (__typeof(x) i = x; i < y; i++)
#define repr(i, x, y)   for (__typeof(x) i = x; i > y; i --)
#define endl "\n"
#define all(x)                      (x).begin(),(x).end()
#define Sort(x)                     sort(all((x)))
#define rSort(x)                     sort((x).rbegin(),(x).rend())
#define X                           first
#define Y                           second
#define sep                         ' '
#define SZ(x)                       ll(x.size())
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define pb                          push_back
#define mp                          make_pair
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
typedef vector<ll> vll;
#define first X
#define second Y

const ll N = 1e6 + 7;
const ll M = 1e17 + 7;


int32_t main()
{
     IOS;
     ll n;
     double m;
     cin >> n >> m;
  		#include <bits/stdc++.h>
using namespace std;

#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define rep(i, x, y)   for (__typeof(x) i = x; i < y; i++)
#define repr(i, x, y)   for (__typeof(x) i = x; i > y; i --)
#define endl "\n"
#define all(x)                      (x).begin(),(x).end()
#define Sort(x)                     sort(all((x)))
#define rSort(x)                     sort((x).rbegin(),(x).rend())
#define X                           first
#define Y                           second
#define sep                         ' '
#define SZ(x)                       ll(x.size())
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define pb                          push_back
#define mp                          make_pair
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
typedef vector<ll> vll;
#define first X
#define second Y

const ll N = 1e6 + 7;
const ll M = 1e17 + 7;


int32_t main()
{
     IOS;
     ll n,m2;
     double m;
     cin >> n >> m;
     
     m*=100;
  	 m2=m;
  	 ll ans= n*m2;
     //cout << ans << sep;
     
     cout << ans/100<<endl;
     //cout << (9888666969998*96)/100+9888666969998;
  return 0;
     
}

    
     
     
    
    

Compiler output:
a.cc: In function 'int32_t main()':
a.cc:67:13: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   67 | int32_t main()
      |             ^~
a.cc:67:13: note: remove parentheses to default-initialize a variable
   67 | int32_t main()
      |             ^~
      |             --
a.cc:67:13: note: or replace parentheses with braces to value-initialize a variable
a.cc:68:1: error: a function-definition is not allowed here before '{' token
   68 | {
      | ^
a.cc:83:2: error: expected '}' at end of input
   83 | }
      |  ^
a.cc:32:1: note: to match this '{'
   32 | {
      | ^
Language: C++

#include <iostream>
#include <algorithm>
#include <math.h>
using namespase std;
int main(){
long long a;
  double b;
  cin>>a>>b;
  int c=b*1000;
  cout<<a*c/1000<<endl;

return 0;
}

Compiler output:
a.cc:4:7: error: expected nested-name-specifier before 'namespase'
    4 | using namespase std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |   cin>>a>>b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |   cout<<a*c/1000<<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:10:19: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |   cout<<a*c/1000<<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<stdio.h>
int main() {
  unsigned long a;
  double b;
  scanf("%llu %lf", &a, &b);
  int = b * 100;
  a*=b;
  a/=100;
  printf("%llu\n", a);
}

Compiler output:
main.c: In function 'main':
main.c:6:7: error: expected identifier or '(' before '=' token
    6 |   int = b * 100;
      |       ^
Language: C++

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

typedef long long ll;

int main(){

    ios::sync_with_stdio(false);
    cin.tie(0);

    ll a;
    double b; 
  	cin >> a >> b;
    ll ans = a*b'
    cout << ans << "\n";

    return 0;
}


Compiler output:
a.cc:14:17: warning: missing terminating ' character
   14 |     ll ans = a*b'
      |                 ^
a.cc:14:17: error: missing terminating ' character
a.cc: In function 'int main()':
a.cc:15:5: error: expected ',' or ';' before 'cout'
   15 |     cout << ans << "\n";
      |     ^~~~
Language: C++

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

typedef long long ll;

int main(){

    ios::sync_with_stdio(false);
    cin.tie(0);

    ll a;
    double b; 
    ll ans = a*b'
    cout << ans << "\n";

    return 0;
}


Compiler output:
a.cc:13:17: warning: missing terminating ' character
   13 |     ll ans = a*b'
      |                 ^
a.cc:13:17: error: missing terminating ' character
a.cc: In function 'int main()':
a.cc:14:5: error: expected ',' or ';' before 'cout'
   14 |     cout << ans << "\n";
      |     ^~~~
Language: C++

#include <iostream>
#include <cmath>

int main()
{
	uint64_t a = 0;
	double b = 0.0;
	std::cin >> a >> b;
	std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'uint64_t' was not declared in this scope
    6 |         uint64_t a = 0;
      |         ^~~~~~~~
a.cc:3:1: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
    2 | #include <cmath>
  +++ |+#include <cstdint>
    3 | 
a.cc:8:21: error: 'a' was not declared in this scope
    8 |         std::cin >> a >> b;
      |                     ^
a.cc:9:38: error: 'uint64_t' does not name a type
    9 |         std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
      |                                      ^~~~~~~~
a.cc:9:38: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
a.cc:9:67: error: 'B' was not declared in this scope
    9 |         std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
      |                                                                   ^
Language: C++

#include <iostream>
#include <cmath>

int main()
{
	uint64_t a = 0;
	double b = 0.0;
	std::cin >> a >> b;
	std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'uint64_t' was not declared in this scope
    6 |         uint64_t a = 0;
      |         ^~~~~~~~
a.cc:3:1: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
    2 | #include <cmath>
  +++ |+#include <cstdint>
    3 | 
a.cc:8:21: error: 'a' was not declared in this scope
    8 |         std::cin >> a >> b;
      |                     ^
a.cc:9:38: error: 'uint64_t' does not name a type
    9 |         std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
      |                                      ^~~~~~~~
a.cc:9:38: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
a.cc:9:67: error: 'B' was not declared in this scope
    9 |         std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
      |                                                                   ^
a.cc:9:77: error: expected '}' at end of input
    9 |         std::cout << a * static_cast<uint64_t>(std::round(100.0 * B)) / 100;
      |                                                                             ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: Java

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

public class C {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		BigDecimal a = sc.nextBigDecimal();
		BigDecimal b = sc.nextBigDecimal();
		a.multiply(b);
		
		System.out.println(a.toBigInteger());
	}
}


Compiler output:
Main.java:4: error: class C is public, should be declared in a file named C.java
public class C {
       ^
1 error
Language: C

#include <stdio.h>

int main(void){
    long long int a;
    double b;
    scanf("%lld",&a);
    scanf("%lf",&b);
    b*=100
    long long int ans = a*b/100;
    printf("%lld\n",ans);
}

Compiler output:
main.c: In function 'main':
main.c:8:11: error: expected ';' before 'long'
    8 |     b*=100
      |           ^
      |           ;
    9 |     long long int ans = a*b/100;
      |     ~~~~   
main.c:10:21: error: 'ans' undeclared (first use in this function)
   10 |     printf("%lld\n",ans);
      |                     ^~~
main.c:10:21: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <iostream>
#include <math.h>
#include <algorithm>
using namespace std;
typedef long long ll;
int main(void){
    ll a,b;
    long double c;
    ll ans = 0;
    cin >> a >> c;
    b = c*100;
    ans = a * b;
    ans /= 100;
    cout << ans << endl;
    return 0;
}


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

#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
#define endl "\n"
#define sz(x) ((ll)(x).size())
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define prt(x) cout << (x)
#define prtl(x) cout << (x) << endl
#define rep(i,a,b) for(ll i=a; i<b; i++)
#define rrep(i,a,b) for(ll i=a; i>b; i--)
#define mp(a, b) make_pair(a, b)
#define chmin(x, y) x = min(x, y)
#define chmax(x, y) x = max(x, y)
using namespace std;
using vi = vector<int>;
using vll = vector<long long int>;
using vb = vector<bool>;
using vvb = vector<vector<bool>>;
using vc = vector<char>;
using vvi = vector<vector<int>>;
using vvll = vector<vector<long long int>>;
using vvc = vector<vector<char>>;
using ll = long long int;
using P = pair<long long int, long long int>;
using Map = map<long long int, long long int>;

int main(){
    long double a, b; cin >> a >> b;
    ll t = floorl(a*b)
    prt(t);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: expected ',' or ';' before 'cout'
    7 | #define prt(x) cout << (x)
      |                ^~~~
a.cc:30:5: note: in expansion of macro 'prt'
   30 |     prt(t);
      |     ^~~
Language: C++

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

int main(){
    ll a;
    long double b;
    cin>>a>>b;

    cout<<(a*(100*b)/100)<<endl;
    
    cout<<ans<<endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   12 |     cout<<ans<<endl;
      |           ^~~
      |           abs
Language: C++

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

int main()
{
    #ifdef LOCAL_EXEC
    #else
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    #endif // LOCAL_EXEC
    double a,b,product;
    long long int result;
    cin>>a>>b;
    product=a*b;
    cout<<(ll)floor(product);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: 'll' was not declared in this scope
   17 |     cout<<(ll)floor(product);
      |            ^~
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: two or more data types in declaration of 'b'
    6 |   int64_t double b;
      |   ^~~~~~~
a.cc:7:15: error: 'b' was not declared in this scope
    7 |   cin >> a >> b;
      |               ^
Language: C++

#include <bits/stdc++.h>
#define endl "\n"
#define sz(x) ((ll)(x).size())
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define prt(x) cout << (x)
#define prtl(x) cout << (x) << endl
#define rep(i,a,b) for(ll i=a; i<b; i++)
#define rrep(i,a,b) for(ll i=a; i>b; i--)
#define mp(a, b) make_pair(a, b)
using namespace std;
using vi = vector<int>;
using vll = vector<long long int>;
using vb = vector<bool>;
using vvb = vector<vector<bool>>;
using vc = vector<char>;
using vvi = vector<vector<int>>;
using vvll = vector<vector<long long int>>;
using vvc = vector<vector<char>>;
using ll = long long;
using P = pair<long long int, long long int>;
using Map = map<long long int, long long int>;

int main(){
    long double a, b; cin >> a >> b;
    prt(floorl(a*b));
}#include <bits/stdc++.h>
#define endl "\n"
#define sz(x) ((ll)(x).size())
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define prt(x) cout << (x)
#define prtl(x) cout << (x) << endl
#define rep(i,a,b) for(ll i=a; i<b; i++)
#define rrep(i,a,b) for(ll i=a; i>b; i--)
#define mp(a, b) make_pair(a, b)
using namespace std;
using vi = vector<int>;
using vll = vector<long long int>;
using vb = vector<bool>;
using vvb = vector<vector<bool>>;
using vc = vector<char>;
using vvi = vector<vector<int>>;
using vvll = vector<vector<long long int>>;
using vvc = vector<vector<char>>;
using ll = long long;
using P = pair<long long int, long long int>;
using Map = map<long long int, long long int>;

int main(){
    long double a, b; cin >> a >> b;
    prt(floorl(a*b));
}

Compiler output:
a.cc:27:2: error: stray '#' in program
   27 | }#include <bits/stdc++.h>
      |  ^
a.cc:27:3: error: 'include' does not name a type
   27 | }#include <bits/stdc++.h>
      |   ^~~~~~~
a.cc:50:5: error: redefinition of 'int main()'
   50 | int main(){
      |     ^~~~
a.cc:24:5: note: 'int main()' previously defined here
   24 | int main(){
      |     ^~~~
Language: C++

#!/usr/bin/env python
# coding: utf-8

import math

def ri():
    return int(input())

def rl():
    return list(input().split())

def rli():
    return list(map(int, input().split()))

def main():
    a, b = ri()
    a = float(a)
    b = float(b)
    ab = a*b
    print(math.floor(ab))


if __name__ == '__main__':
    main()


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #!
    1 | #!/usr/bin/env python
      |  ^
a.cc:2:3: error: invalid preprocessing directive #coding
    2 | # coding: utf-8
      |   ^~~~~~
a.cc:23:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
   23 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:4:1: error: 'import' does not name a type
    4 | import math
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define llong long long
#defin ldbl long double
int main()
{
  llong A;
  ldbl B;
  cin >> A >> B;
 
  cout << (llong)(A * B) << '\n';
  return 0;
}

Compiler output:
a.cc:4:2: error: invalid preprocessing directive #defin; did you mean #define?
    4 | #defin ldbl long double
      |  ^~~~~
      |  define
a.cc: In function 'int main()':
a.cc:8:3: error: 'ldbl' was not declared in this scope
    8 |   ldbl B;
      |   ^~~~
a.cc:9:15: error: 'B' was not declared in this scope
    9 |   cin >> A >> B;
      |               ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
long long a,x;
  cin>>a;
  double b,p;
  cin>>b;
  p=a*b*100;
  q=p/100;
  cout<<q<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'q' was not declared in this scope
   10 |   q=p/100;
      |   ^