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

#include<bis/stdc++.h>
using namespace std;
int main(){
unsigned long long int x,i,mul=1,p;
  cin>>x;
  for(i=1;i<=x;i++){
  cin>>p;
    mul=mul*p;
if(mul>1000000000000000000){
  cout<<-1<<endl;
  return 0;
  }
  }
  cout<<mul<<endl;

}

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

// #include <bits/stdc++.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <cmath>

#define rep(i,n) for (int i = 0; i < n; ++i)
#define repr(i,n) for (int i = n; i > 0; --i)
using namespace std;
using ll = long long;
using P = pair<int,int>;

const int MAX = 100;
const int INF = (1<<12);

int main() {
  int N;
  vector<ll> A(N);
  cin >> N;
  rep(i,N) cin >> A[i];
  sort(A.begin(),A.end());

  int ans = 0;
  if(A[0] == 0)
  else{
    ans = A[0];
    for (int i = 1; i < N; i++)
    {
      ans *= A[i];
      if(ans > 1e18){
        ans = -1;
        break;
      }
    }
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:3: error: expected primary-expression before 'else'
   26 |   else{
      |   ^~~~
Language: Java

import java.util.*;

public class Main {
    static Scanner sc = new Scanner(System.in);
    public static void main(String[] args){
      	int A = sc.nextInt();
      	int c;
      	for(int i=0; i < A; i++){
        	int b[i] = sc.nextInt();
        	for(int i=0; i < A; i++){
        	c = c*b[i]
        	}
        System.out.println(c);
      	}
    }
    
}


Compiler output:
Main.java:9: error: ']' expected
        	int b[i] = sc.nextInt();
        	      ^
Main.java:9: error: ';' expected
        	int b[i] = sc.nextInt();
        	       ^
Main.java:11: error: ';' expected
        	c = c*b[i]
        	          ^
3 errors
Language: Java

/* package codechef; // don't place package name! */
import java.math.BigInteger;
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Collections;
/* Name of the class has to be "Main" only if the class is public. */
public class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		try {
		    Scanner k=new Scanner(System.in);
		    int t;
		    t=k.nextInt();
		       long a[]=new long[t];
		       for(int i=0;i<t;i++)
		       a[i]=k.nextLong();
		       int flag=0;
		       BigInteger b=new BigInteger("1");
		       BigInteger c=new BigInteger("1000000000000000000");
		       for(int i=0;i<t;i++)
		      {
		          b=b.multiply(BigInteger.valueOf(a[i]));
		          if(b.compareTo(c)>0)
		          {
		              flag=1;
		              break;
		          }
		      }
		      if(flag==1)
		      System.out.println("-1");
		      else
		      System.out.println(b);
		      
		        }
		    catch(Exception e) {
		    return;
		}
	}
}

Compiler output:
Main.java:8: error: class Codechef is public, should be declared in a file named Codechef.java
public class Codechef
       ^
1 error
Language: C++

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

int main() {
    int N;
    vector<int64_t> A(N);
    for (int i = 0; i < N; i++) {
        cin >> A.at(i);
    }

    int64_t sum = 1;
    for (int i = 0; i < N; i++) {
        if (A.at(i) == 0) {
            cout << 0 << endl;
            return 0;
        }
    for (int i = 0; i < N; i++) {
        if (A.at(i) > 1000000000000000000) {
            sum = -1;
            break;
        }
        sum = sum*A.at(i);
        if (sum > 1000000000000000000) {
            sum = -1;
            break;
        }
    }

    cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:2: error: expected '}' at end of input
   30 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

long n;
long[] A = new int[n];

n = sc.nextInt();

long ans = 1;

for(int i=0; i<n; i++){
    A[i] = sc.nextInt();
}

for(long i=0; i<n; i++){
    ans *= A[i];
}

if (ans <= 1000000000000000000) System.out.println(ans);
else System.out.println(-1);

    }
}

Compiler output:
Main.java:23: error: integer number too large
if (ans <= 1000000000000000000) System.out.println(ans);
           ^
1 error
Language: C

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define fix cout << fixed; cout << setprecision(10)





void solve() {

	int n;
	cin >> n;
	ll x;
	ll p = 1;
	while(n--) {
		cin >> x;
		if(x == 0) {
			p = 0;
		}
		else if(x * p < 0 && p > 0) {
			p *= x;
		}
		else {
			p = -1;
		}
	}
	cout << p << "\n";



	
}

int main() {

	ios_base::sync_with_stdio(0);
	cin.tie(NULL);
	
	solve();

	return 0;
}

Compiler output:
main.c:1:10: 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 main(){
  int n;
  long mul = 1;
  cin >> n;
  
  vector<int> a(n);
  
  for(int i = 0; i < n; i++){
    cin >> a.at(i);
    mul *= a.at(i);
  }
  
  if(mul >= 1000000000000000000){
    mul = -1;
  }
  
  cout << mul << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'vector' was not declared in this scope
    9 |   vector<int> a(n);
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:9:10: error: expected primary-expression before 'int'
    9 |   vector<int> a(n);
      |          ^~~
a.cc:12:12: error: 'a' was not declared in this scope
   12 |     cin >> a.at(i);
      |            ^
Language: C++

#includebits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  vector<size_t> arr(n);
  for( int i=0;i<n; i++ ){
    cin>>arr[i];
  }
  size_t max_ = max_element( arr.begin(), arr.end() );
  if( max_ > 1000000000 ) cout<<-1;
  else{ 
    size_t ans = 1;
    for( auto it: arr ){
      ans *= it;
      if( ans > 1000000000000000000 ) { cout<<-1; break; }
    }
    cout<<ans;
  }
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #includebits; did you mean #include?
    1 | #includebits/stdc++.h>
      |  ^~~~~~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>n;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #includebits/stdc++.h>
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<size_t> arr(n);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | #includebits/stdc++.h>
a.cc:6:10: error: 'size_t' was not declared in this scope
    6 |   vector<size_t> arr(n);
      |          ^~~~~~
a.cc:1:1: note: 'size_t' is defined in header '<cstddef>'; this is probably fixable by adding '#include <cstddef>'
  +++ |+#include <cstddef>
    1 | #includebits/stdc++.h>
a.cc:6:18: error: 'arr' was not declared in this scope
    6 |   vector<size_t> arr(n);
      |                  ^~~
a.cc:10:9: error: expected ';' before 'max_'
   10 |   size_t max_ = max_element( arr.begin(), arr.end() );
      |         ^~~~~
      |         ;
a.cc:11:7: error: 'max_' was not declared in this scope
   11 |   if( max_ > 1000000000 ) cout<<-1;
      |       ^~~~
a.cc:11:27: error: 'cout' was not declared in this scope
   11 |   if( max_ > 1000000000 ) cout<<-1;
      |                           ^~~~
a.cc:11:27: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:13:11: error: expected ';' before 'ans'
   13 |     size_t ans = 1;
      |           ^~~~
      |           ;
a.cc:15:7: error: 'ans' was not declared in this scope
   15 |       ans *= it;
      |       ^~~
a.cc:16:41: error: 'cout' was not declared in this scope
   16 |       if( ans > 1000000000000000000 ) { cout<<-1; break; }
      |                                         ^~~~
a.cc:16:41: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:18:5: error: 'cout' was not declared in this scope
   18 |     cout<<ans;
      |     ^~~~
a.cc:18:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:18:11: error: 'ans' was not declared in this scope
   18 |     cout<<ans;
      |           ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
int main() {
  int n;
  cin >> n;
  int a[n];
  int t=1;
  for(int i=0;i<n;i++){
    cin >> a[i];
    t *= a[i]
    if(a[i]==0){
      break;
    }
    else if(t>1000000000000000000){
      t = -1;
      break;
    }
  }
  cout << t;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: expected ';' before 'if'
   11 |     t *= a[i]
      |              ^
      |              ;
   12 |     if(a[i]==0){
      |     ~~        
a.cc:15:5: error: 'else' without a previous 'if'
   15 |     else if(t>1000000000000000000){
      |     ^~~~
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int64_t> A(N);
  bool check = false;
  for(int i = 0; i < N; i++){
    cin >> A[i];
    if(A[i] == 0)
      check = true;
  }
  
  int64_t ans = 1;
  for(int i = 0; i < N; i++){
    int64_t ans2 = ans
    ans *= A[i];
    if(ans > 1000000000000000000 || ans < ans2){
      ans = -1;
      break;
    }
  }
  
  if(check)
    cout << 0 << endl;
  else
    cout << ans << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: expected ',' or ';' before 'ans'
   19 |     ans *= A[i];
      |     ^~~
Language: Java



import java.util.Scanner;

public class Main {
    static long longNum = 1000000000000000000L;

    static Scanner sc = new Scanner(System.in);
    static int n = sc.nextInt();
    public static void main(String[] args) {
        long ans = sc.nextLong();
        try{
            for (int i = 0; i < n - 1; i++){
                ans *= sc.nextLong();
                if (ans > longNum){
                    System.out.println(-1);
                    break;
                }
            if (ans > longNum){
                System.out.println(-1);
            } else {
                System.out.println(ans);
            }
        } catch (Exception e){
            System.out.println(-1);
        }
    }
}


Compiler output:
Main.java:24: error: 'catch' without 'try'
        } catch (Exception e){
          ^
Main.java:12: error: 'try' without 'catch', 'finally' or resource declarations
        try{
        ^
Main.java:28: error: reached end of file while parsing
}
 ^
3 errors
Language: C++

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



int main() {
  int N;
  cin >> N;
  vector<int> A(i);
  
  int S =1
  
  rep(i, N) {
    cin >> A.at(i);
    S *= A.at(i);
  }
  
  if(S > 1000000000*1000000000){
    cout << -1 <<endl;
  }
  
  else{
    cout << S <<endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:17: error: 'i' was not declared in this scope
   10 |   vector<int> A(i);
      |                 ^
a.cc:2:19: error: expected ',' or ';' before 'for'
    2 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                   ^~~
a.cc:14:3: note: in expansion of macro 'rep'
   14 |   rep(i, N) {
      |   ^~~
a.cc:19:20: warning: integer overflow in expression of type 'int' results in '-1486618624' [-Woverflow]
   19 |   if(S > 1000000000*1000000000){
      |          ~~~~~~~~~~^~~~~~~~~~~
Language: C++

'''

                            Online Python Compiler.
                Code, Compile, Run and Debug python program online.
Write your code in this editor and press "Run" button to execute it.

'''

n = int(input()) 
  
a = list(map(int,input().strip().split()))[:n] 
x=1  
for i in range(n):
    x*=a[i]
    
if x>1000000000000000000:
    print(-1)
else:
    print(x)
    


Compiler output:
a.cc:1:1: error: empty character constant
    1 | '''
      | ^~
a.cc:1:3: warning: missing terminating ' character
    1 | '''
      |   ^
a.cc:1:3: error: missing terminating ' character
a.cc:7:1: error: empty character constant
    7 | '''
      | ^~
a.cc:7:3: warning: missing terminating ' character
    7 | '''
      |   ^
a.cc:7:3: error: missing terminating ' character
a.cc:1:1: error: expected unqualified-id before '\x0'
    1 | '''
      | ^~
Language: C++

n = int(raw_input()) 

arr = [int(x) for x in raw_input().split()] 
  
ans = 1

for x in arr: 
    ans*=x
    
    if ans>1000000000000000000:
       ans = -1
    
    if ans!=-1:
        ans*=x
      
print(ans)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(raw_input())
      | ^
Language: Java

public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      int N = sc.nextInt();
      long a = 1;
      for(int i = 0; i < N; i++) {
        a *= sc.nextInt();
      }
      if(a > Math.pow(10, 18)){
        System.out.println("-1");
      }
      System.out.println(a);
    }

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

int main(){
  int n;
  scanf("%d",&n);
  long long int a[n];
  long long int ans =0;
  for(int i =0,i<n,i++){
    ans*=a[i];
   }
  if(ans>100000000000000){
    printf(-1);
  }else{
  prentf("%lld",ans);
    }
  return 0;
  }

Compiler output:
main.c: In function 'main':
main.c:3:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    3 |   scanf("%d",&n);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int main(){
main.c:3:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    3 |   scanf("%d",&n);
      |   ^~~~~
main.c:3:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:6:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    6 |   for(int i =0,i<n,i++){
      |                 ^
main.c:9:3: error: expected expression before 'if'
    9 |   if(ans>100000000000000){
      |   ^~
main.c:15:3: error: expected expression before '}' token
   15 |   }
      |   ^
main.c:15:3: error: expected expression before '}' token
Language: C++

N = int(input())
A = list(map(int, input().split()))

ans = 1
for i in range(N):
  if ans < 1000000000000000000:
    ans = ans * A[i]
  else:
    ans = -1
    break

print(ans)

Compiler output:
a.cc:1:1: error: 'N' does not name a type
    1 | N = int(input())
      | ^
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

int n;
int[] A = new int[n];

n = sc.nextInt();

int ans = 1;

for(int i=0; i<n; i++){
    A[i] = sc.nextInt();
}

for(int i=0; i<n; i++){
    ans *= A[i];
}

if (ans <= 1000000000000000000) System.out.println(ans);
else System.out.println(-1);

    }
}

Compiler output:
Main.java:23: error: integer number too large
if (ans <= 1000000000000000000) System.out.println(ans);
           ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define pb push_back
// #define mod 1000000007LL
#define fi first
#define se second
const ll p = 1000000007;
const ll mod = 1000000007;
int main()
{
    ll n;
    cin>>n;
    vector<ll> a(n);
    ll i;
    ll pro = 1;
    for(i=0;i<n;i++)
        cin>>a[i];
    sort(a.begin(),a.end());
    if(a[0]==0){
        cout<<0;
        return 0;
    }
    for(i=0;i<n;i++)
        pro = pro*a[i];
    if(pro<=0 || pro>1000000000000000000)
        cout<<-1;
    else{
        for(i=0;i<n;i++)
            if(pro<a[i])
            {
                cout<<-1;
                return;
            }
        cout<<pro;  
    }
}   


Compiler output:
a.cc: In function 'int main()':
a.cc:33:17: error: return-statement with no value, in function returning 'int' [-fpermissive]
   33 |                 return;
      |                 ^~~~~~
Language: Java

import java.util.*;
import java.math.BigInteger;
public class Main 
{
	public static void main(String[] args)
    {
      BigInteger mul = new BigInteger("1");
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
        while(num >= 0)
        {
          int b = sc.nextInt();
          mul.multiply(new BigInteger(b));
          num--;
        }
      BigInteger bd = new BigInteger("1000000000000000000");
      if(mul < bd)
		System.out.println(mul);
      else
        System.out.println(-1);
	}
}

Compiler output:
Main.java:13: error: no suitable constructor found for BigInteger(int)
          mul.multiply(new BigInteger(b));
                       ^
    constructor BigInteger.BigInteger(byte[]) is not applicable
      (argument mismatch; int cannot be converted to byte[])
    constructor BigInteger.BigInteger(int[]) is not applicable
      (argument mismatch; int cannot be converted to int[])
    constructor BigInteger.BigInteger(String) is not applicable
      (argument mismatch; int cannot be converted to String)
    constructor BigInteger.BigInteger(long) is not applicable
      (BigInteger(long) has private access in BigInteger)
Main.java:17: error: bad operand types for binary operator '<'
      if(mul < bd)
             ^
  first type:  BigInteger
  second type: BigInteger
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
2 errors
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 = 1;
      for(int i = 0; i < N; i++) {
        a *= sc.nextInt();
      }
      if(a > Math.pow(10, 18){
        System.out.println("-1");
      }
      System.out.println(a);
    }
  
}
  


Compiler output:
Main.java:10: error: ')' expected
      if(a > Math.pow(10, 18){
                             ^
1 error
Language: C++

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

using namespace std;
typedef long long ll;

#define REP(i, n) for(ll i = 0; i < n; i++)
#define REPR(i, n) for(ll i = n; i >= 0; i--)
#define FOR(i, m, n) for(ll i = m; i < n; i++)
#define INF 2e9
#define ALL(v) v.begin(), v.end()
#define  DESC std::greater<int>() //sort 3rd arg



int main()
{
	int n;

	cin >> n;
	vector<ll> v;
	ll res = 0;

	cin >> res;

	REP(i, n-1) {
		ll tmp;
		cin >> tmp;
		res *= tmp;
		if (res > pow(10,18)) {
			cout << -1 << endl;
			return 0;
		}
	}

	
	cout << res << endl;

	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:32:27: error: 'pow' was not declared in this scope
   32 |                 if (res > pow(10,18)) {
      |                           ^~~
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {

Scanner sc = new Scanner(System.in;

int n;
int[] A = new int[n];

n = sc.nextInt();

int ans = 1;

for(int i=0; i<n; i++){
    A[i] = sc.nextInt();
}

for(int i=0; i<n; i++){
    ans *= A[i];
}

if (ans <= 1000000000000000000) System.out.println(ans);
else System.out.println(-1);

    }
}

Compiler output:
Main.java:6: error: ')' or ',' expected
Scanner sc = new Scanner(System.in;
                                  ^
Main.java:23: error: integer number too large
if (ans <= 1000000000000000000) System.out.println(ans);
           ^
2 errors
Language: C++

#include<iostream>

using namespace std;

int main()
{
  int n;
  cin >> n;
  
  long long ans = 1;
  const lon long thresh = 1000000000000000000;
  
  for(int i=0;i<n;i++)
  {
    long long a;
    cin >> a;
    
    if (a == 0)
    {
      ans = 0;
      break;
    }
    
    ans *= a;
    
    if (ans < 0 || ans > thresh)
    {
      ans = -1;
      break;
    }
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'lon' does not name a type; did you mean 'long'?
   11 |   const lon long thresh = 1000000000000000000;
      |         ^~~
      |         long
a.cc:26:26: error: 'thresh' was not declared in this scope
   26 |     if (ans < 0 || ans > thresh)
      |                          ^~~~~~
Language: C++

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

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

    vector<long long> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];

    long long res = 1;
    
    for (int i = 0; i < n;i++) {
        res *= a[i];
    }

    long long max = pow(10, 18);
    if (res > max) res = -1;

    cout << res;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:21: error: 'pow' was not declared in this scope
   19 |     long long max = pow(10, 18);
      |                     ^~~
Language: C++

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
#include <boost/multiprecision/cpp_int.hpp>
using boost::multiprecision::cpp_int;
#define ll long long
int main()
{
    int n; cin >> n;
	long long int a[n];cpp_int res = 1;
	for(int i = 0; i < n; i++)
	{
		cin >> a[i];
		res = res*a[i];
		if(res > 1000000000000000000)
		{
			cout << -1 << endl;
			return;
		}
	}
	cout << res << endl;


return 0;
}






Compiler output:
a.cc:5:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    5 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

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

	ll a = 1;
	rep(i, n) {
		ll t;
		cin >> t;
		a *= t;
		if (a > 1000000000000000000) {
			a = -1;
			break;
		}
	}

	cout << a << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:13: error: 'i' was not declared in this scope
   13 |         rep(i, n) {
      |             ^
a.cc:13:9: error: 'rep' was not declared in this scope
   13 |         rep(i, n) {
      |         ^~~
Language: C++

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

static const ll MAX = 1e9;

int main(){
    ll N;
    cin>>N;
    vector<ll> A(N);
    for(int i=0; i<N; i++) cin>>A[i];
    ll tmp1,tmp2;
    bool one,two;
    bool zero;

    one = two = zero = false;

    int i;
    tmp1=tmp2=0;
    for(i=0; i<N; i++){

        tmp1 *= A[i];
        if(tmp1 > MAX){
            one = true;
            break;
        }
        if(A[i] == 0) zero = true;
    }

    i++;

    for(int j=i; j<N; j++){
        tmp2 *= A[j];¥
        if(tmp2 > MAX){
            two  = true;
            break;
        }

        if(A[j] == 0) zero = true;
    }

    if(zero){
        cout<<0<<endl;
    } 

    else {
        if(one && two) cout<<"-1"<<endl;
        else cout<<tmp1*tmp2<<endl;
    }

    return 0;
}

Compiler output:
a.cc:33:22: error: extended character ¥ is not valid in an identifier
   33 |         tmp2 *= A[j];¥
      |                      ^
a.cc: In function 'int main()':
a.cc:33:22: error: '\U000000a5' was not declared in this scope
   33 |         tmp2 *= A[j];¥
      |                      ^
Language: C++

#include <iostream> // cout, endl, cin
#include <string> // string, to_string, stoi
#include <vector> // vector
#include <algorithm> // min, max, swap, sort, reverse, lower_bound, upper_bound
#include <utility> // pair, make_pair
#include <tuple> // tuple, make_tuple
#include <cstdint> // int64_t, int*_t
#include <cstdio> // printf
#include <map> // map
#include <queue> // queue, priority_queue
#include <set> // set
#include <stack> // stack
#include <deque> // deque
#include <unordered_map> // unordered_map
#include <unordered_set> // unordered_set
#include <bitset> // bitset
#include <cctype> // isupper, islower, isdigit, toupper, tolower
#include <list>
#include <cmath>
using namespace std;
typedef long long ll;
#define rep(i,m,n) for (int i = (m) ; i < (n) ; i++)
#define per(i,n,m) for (int i = (n-1) ; i >= (m) ; i--)
#define all(x)     (x).begin(), (x).end()
#define sz(x)      ((int) (x).size())
ll gcd(ll x,ll y){
    if(y==0)return x;
    else return gcd(y,x%y);
}
ll lcm(ll x,ll y){
    return x*y/gcd(x,y);
}
int main(void){
    int N,error=0;
    long long int sum=1;
    cin>>N;
    vector<int> data(N);
    rep(i,0,N){
        cin>>data.at(i);
        sum*=data.at(i);
        if(sum>=pow(10,18))error+++
    }
    if(error==1)cout<<-1<<endl;
    else cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:42:5: error: expected primary-expression before '}' token
   42 |     }
      |     ^
Language: C

#include <iostream>
using namespace std;

int main()
{
	long long unsigned int N;
	cin >> N;
	long long unsigned int A[N];
	for(int i=0; i<N; i++)
	{
		cin >> A[i];
	}
	
	long long unsigned int tmp = 1;
	for(int i=0; i<N; i++)
	{
		tmp = tmp * A[i];
	}
	if(tmp > 1000000000000000000)
	{
		cout << -1;
	}
	else
	{
		cout << tmp;
	}
	
	return 0;
}

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

// created on : Sun May 31 2020
 

import java.io.*;
import java.util.*;

public class B{

    public static void main(String[] args) throws IOException {
        int N = in.nextInt();
        long A[] = new long[N];
        for(int i = 0; i < N; i++){
            A[i] = in.nextLong();
        }
        Arrays.sort(A);
        if(A[0] == 0){
            System.out.println(0);
            return;
        }

        long ans = 1;
        long limit = (long) 1e18;
        for(int i = 0; i < N; i++){
            ans = ans * A[i];
            // println("ans: " + ans);
            if(ans > limit || ans < 0){
                break;
            }
        }
        
        
        if(ans > limit || ans < 0){
            println(-1);
        }
        else{
            println(ans);
        }
        in.close();
        out.close();
    }

    static int MIN = Integer.MIN_VALUE;
    static int MAX = Integer.MAX_VALUE;
    static Reader in = new Reader();
    static PrintWriter out = new PrintWriter(System.out);

    static int[] readInt(int N) throws IOException { 
    	int arr[] = new int[N];
    	for(int i = 0; i < N; i++){ 
    		arr[i] = in.nextInt(); 
    	} 
    	return arr;
    }
    
    static long[] readLong(int N) throws IOException { 
    	long arr[] = new long[N];
    	for(int i = 0; i < N; i++){ 
    		arr[i] = in.nextLong(); 
    	} 
    	return arr;
    }
    
    static String[] readString(int N) throws IOException { 
    	String arr[] = new String[N];
    	for(int i = 0; i < N; i++){ 
    		arr[i] = in.next(); 
    	} 
    	return arr;
    }
    
    static void print(Object O) {  
    	out.print(O); 
    }
    
    static void println(Object O) { 
    	out.println(O); 
    }
    
    static void println(int arr[]) { 
    	for(int i = 0; i < arr.length; i++){ 
    		print(arr[i] + " "); 
    	} 
    	println(""); 
    }
    
    static void debug(Object ... O) { 
    	for(Object obj: O){
    		System.out.print(obj + " ");
    	}
    	System.out.println();
    }
}

class Reader {
    BufferedReader reader;
    StringTokenizer tokenizer;

    Reader() {
        reader = new BufferedReader(new InputStreamReader(System.in));
        tokenizer = new StringTokenizer("");
    }

    String next() throws IOException {
        while (!tokenizer.hasMoreTokens() ) { 
            tokenizer = new StringTokenizer(reader.readLine()); 
        }
        return tokenizer.nextToken();
    }

    int nextInt() throws IOException { 
        return Integer.parseInt(next()); 
    }
    
    double nextDouble() throws IOException { 
        return Double.parseDouble(next());
    }
    
    long nextLong() throws IOException { 
        return Long.parseLong(next()); 
    }
    
    String nextLine() throws IOException { 
        return reader.readLine(); 
    }
    
    void close() throws IOException { 
        reader.close(); 
    }
}

Compiler output:
Main.java:7: error: class B is public, should be declared in a file named B.java
public class B{
       ^
1 error
Language: C++

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

int main(){
  int N;
  long int ans = 1;
  cin >> N;
  for(int i=0; i<N; i++){
    int A;
    cin >> A;
    ans *= A;
    if(ans > 1000000000000000000){
    ans = -1;
    berak;
    }
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: 'berak' was not declared in this scope
   15 |     berak;
      |     ^~~~~
Language: Java

import java.util.*;
public class Main 
{
	public static void main(String[] args)
    {
      BigInteger mul = new BigInteger("1");
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
        while(num >= 0)
        {
          int b = sc.nextInt();
          mul.multiply(new BigInteger(b));
          num--;
        }
      BigInteger bd = new BigInteger("1000000000000000000");
      if(mul < bd)
		System.out.println(mul);
      else
        System.out.println(-1);
	}
}

Compiler output:
Main.java:6: error: cannot find symbol
      BigInteger mul = new BigInteger("1");
      ^
  symbol:   class BigInteger
  location: class Main
Main.java:6: error: cannot find symbol
      BigInteger mul = new BigInteger("1");
                           ^
  symbol:   class BigInteger
  location: class Main
Main.java:12: error: cannot find symbol
          mul.multiply(new BigInteger(b));
                           ^
  symbol:   class BigInteger
  location: class Main
Main.java:15: error: cannot find symbol
      BigInteger bd = new BigInteger("1000000000000000000");
      ^
  symbol:   class BigInteger
  location: class Main
Main.java:15: error: cannot find symbol
      BigInteger bd = new BigInteger("1000000000000000000");
                          ^
  symbol:   class BigInteger
  location: class Main
5 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
typedef long long ll;
#define _GLIBCXX_DEBUG
typedef vector<int> vec;
typedef vector<ll> lvec;
typedef vector<char> cvec;
typedef vector<double> dvec;
typedef pair<ll, ll> LP;
typedef tuple<ll, ll, ll> LT;
typedef pair<int, int> P;
typedef tuple<int, int, int> T;
const INF=1000000000000000000;
#define fs first
#define sc second
int main()	{
  int n;
  ll sum=0;
  cin>>n;
  vector<ll> vec(n);
  rep(i,n) {
    cin>>vec[i];
    sum*=vec[i];
  }
  if(sum>INF){
    cout<<-1<<endl;
  }
  else
    cout<<sum<<endl;
}

Compiler output:
a.cc:16:7: error: 'INF' does not name a type
   16 | const INF=1000000000000000000;
      |       ^~~
a.cc: In function 'int main()':
a.cc:28:10: error: 'INF' was not declared in this scope
   28 |   if(sum>INF){
      |          ^~~
Language: C++

#!/usr/local/bin/python3.5 -tt

import random
import sys

if __name__ == '__main__':
    def _(f):
        for l in f:
            for i in l.split():
                yield(int(i))

    g = _(sys.stdin)

    N = next(g)

    a = []

    for i in range(N):
        a.append(next(g))

    a.sort()

    S = 1

    for i in a:
        S *= i

        if S == 0:
            print(0)
            sys.exit(0)
        elif S > 10 ** 18:
            print(-1)
            sys.exit(0)

    print(S)


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #!
    1 | #!/usr/local/bin/python3.5 -tt
      |  ^
a.cc:6:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
    6 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:3:1: error: 'import' does not name a type
    3 | import random
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>
using namespace std
  
int main(){
  long long n;
  cin >> n;
  vector<long long> a(n);
  for(long long i = 0; i < n; i++)cin >> a[i];
  
  long long ans = a[0];
  for(long long i = 1; i < n; i++){
    ans *= a[i];
  }
  if(ans > 1e+18 ){cout << -1 << endl;}
  else cout << ans << endl;
}

    


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

from math import log10

n = int(input())
a = [int(x) for x in input().split(' ')]

sum = 1



for i in range(n):
    sum *= a[i];

if sum != 0 and (sum - 10**18) > 0:
    print(-1)
else:
    print(sum)

Compiler output:
main.c:1:1: error: unknown type name 'from'
    1 | from math import log10
      | ^~~~
main.c:1:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'import'
    1 | from math import log10
      |           ^~~~~~
main.c:1:11: error: unknown type name 'import'
main.c:13:1: error: expected identifier or '(' before 'if'
   13 | if sum != 0 and (sum - 10**18) > 0:
      | ^~
Language: C++

#include  <bits/stdc++.h>
using namespace std;
int main()
{
  unsigned long long int n,p=1,i;
  cin>>n;
  unsigned long long int a[n];
  for(i=0;i<n;i++)
    cin>>a[i];
  for(i=0;i<n;i++)
    p*=a[i];
  if(p>1000000000000000000)
    cout<<"-1"
    else
      cout<<p<<endl;
  return 0;
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:13:15: error: expected ';' before 'else'
   13 |     cout<<"-1"
      |               ^
      |               ;
   14 |     else
      |     ~~~~
Language: Java

import java.util.*;

Scanner sc = new Scanner(System.in());

int n;
int[] A = new int[n];

n = sc.nextInt();

int ans = 1;

for(int i=0; i<n; i++){
    A[i] = sc.nextInt();
}

for(int i=0; i<n; i++){
    ans *= A[i];
}

if (ans <= 1000000000000000000) System.out.println(ans);
else System.out.println(-1);

Compiler output:
Main.java:3: error: unnamed classes are a preview feature and are disabled by default.
Scanner sc = new Scanner(System.in());
^
  (use --enable-preview to enable unnamed classes)
Main.java:8: error: class, interface, enum, or record expected
n = sc.nextInt();
^
Main.java:12: error: class, interface, enum, or record expected
for(int i=0; i<n; i++){
^
Main.java:12: error: class, interface, enum, or record expected
for(int i=0; i<n; i++){
             ^
Main.java:12: error: class, interface, enum, or record expected
for(int i=0; i<n; i++){
                  ^
Main.java:14: error: class, interface, enum, or record expected
}
^
Main.java:16: error: class, interface, enum, or record expected
for(int i=0; i<n; i++){
             ^
Main.java:16: error: class, interface, enum, or record expected
for(int i=0; i<n; i++){
                  ^
Main.java:18: error: class, interface, enum, or record expected
}
^
Main.java:21: error: class, interface, enum, or record expected
else System.out.println(-1);
^
10 errors
Language: C++

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


int main() {
  int N;
  cin >> N;
  vector<int> A(i);
  
  int S =1
  
  rep(i, N) {
    cin >> A.at(i);
    S *= A.at(i);
  }
  
  if(S > 1000000000*1000000000){
    cout << -1 <<endl;
  }
  
  else{
    cout << S <<endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: 'i' was not declared in this scope
    9 |   vector<int> A(i);
      |                 ^
a.cc:3:19: error: expected ',' or ';' before 'for'
    3 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                   ^~~
a.cc:13:3: note: in expansion of macro 'rep'
   13 |   rep(i, N) {
      |   ^~~
a.cc:18:20: warning: integer overflow in expression of type 'int' results in '-1486618624' [-Woverflow]
   18 |   if(S > 1000000000*1000000000){
      |          ~~~~~~~~~~^~~~~~~~~~~
Language: C

#include <stdio.h>

int main(void) {
	int n, ans;
	if( scanf("%d", &n) == 1);
	int a[n];
	int i;
	for(i=0;i<n;i++){
		if{scanf("%d", &a[i]) == 1);
		ans = ans + a[i];
	}
	printf("%d", ans);
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:9:19: error: expected '(' before '{' token
    9 |                 if{scanf("%d", &a[i]) == 1);
      |                   ^
      |                   (
main.c:9:43: error: expected statement before ')' token
    9 |                 if{scanf("%d", &a[i]) == 1);
      |                                           ^
main.c:14:1: error: expected declaration or statement at end of input
   14 | }
      | ^
Language: C++

//  RAKSHIT KADAM
//ALWAYS USE &IT FOR ITERATING USING AUTO ...
//USE COUNT(STARTING ADDRESS, ENDING ADRESS ,VALUE) FOR FINDING THE COUNT IN THE RESPECTIVE DATA STRUCTURE
//NOTE THAT MEMSET CANNOT ASSIGN A VALUE OF 10^18 IT WILL ASSIGN A LOWER VALUE THAN THAT!!!
//NOTE THAT MEMSET CANT FILL THE DOUBLE VALUES;
//ACCUMULATE DOES NOT WORK PROPERLY IF VALUES START SUMMING BEYOND 1E9...
 #include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// #define ordered_set tree< int ,  null_type ,  less<int> ,  rb_tree_tag ,  tree_order_statistics_node_update>
#warning !!!check the size of arrayss!!!

// NUMERIC DEFINITIONS :
    #define INF 2000000000000000005
    #define MOD  1000000007
    #define newMOD  998244353
    #define MAX 300006
    #define pi 3.1415926535897932384626433832795
#define ld long double
 #define ll long long
 #define int long long

 #define P(gg) for(auto rax:gg){cout<<rax<<" ";}cout<<endl;
 #define Need_for_speed(activated) ios_base :: sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
 #define satisfy ll t; cin>> t; while(t--)
 #define inp(n) int n;cin >> n
 #define mp make_pair
 #define pb push_back
 #define endl "\n"
 #define x first
 #define y second
 #define fore(i,a,b) for(ll i=a;i<b;i++)
 #define forci(i,n) for(ll i=0;i<n;i++)
 #define vi vector<ll>
 #define Endl endl
 #define lb lower_bound
 #define ub upper_bound
#define pii pair<ll,ll>

 #define input freopen("input.txt", "r", stdin),freopen("output.txt", "w", stdout)
 #define time        cerr << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n";
using namespace std;

ll gcd(ll a, ll b){if (b == 0)return a;return gcd(b, a % b);}
int power(int x, unsigned int y, unsigned int m){ if (y == 0) return 1;int p = power(x, y/2, m) % m;  p = (p * p) % m;                                                  return (y%2 == 0)? p : (x * p) % m;}
ll modInverse(int a, int m){int g = gcd(a, m); { return power(a, m-2, m);}}
const int maxn= 500004;
ll bad;
void solve()
{
    ll n;cin>>n;
    ll ans=1;
    ll c=1;
    for(ll j=1;j<=18;j++)c*=10;ll x;
    
    for(ll i=0;i<n;i++)
    {
        cin>>x;
        if(ans!=-)
        if(c/ans<x)
        {
            bad=1;
        }
        if(c/ans>=x)
        {
            ans*=x;
        }
        if(x==0)bad=0,ans=0;
        
    }
    if(bad)cout<<"-1"<<endl;
    else cout<<ans<<endl;
        
}
signed main()
{
   Need_for_speed(activated);
    
//satisfy
//    {
//   solve();
//   }

    solve();
    return 0;
}



Compiler output:
a.cc:12:2: warning: #warning !!!check the size of arrayss!!! [-Wcpp]
   12 | #warning !!!check the size of arrayss!!!
      |  ^~~~~~~
a.cc: In function 'void solve()':
a.cc:60:18: error: expected primary-expression before ')' token
   60 |         if(ans!=-)
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() { 
  long long int a,sum;
  sum=1;
  cin>>a;
  vector<int> vec<a>;
  for(int i=0;i<a;i++){
    cin>>vec.at(i)  ;
  }
  for(int i=0;i<a;i++){
    sum=sum*vec.at(i);
    if(sum>1000000000000000000){
      sum = -1;
      break;
    }
  }
  cout<<sum<<endl;
  return 0;
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: expected initializer before '<' token
    7 |   vector<int> vec<a>;
      |                  ^
a.cc:9:10: error: 'vec' was not declared in this scope
    9 |     cin>>vec.at(i)  ;
      |          ^~~
a.cc:12:13: error: 'vec' was not declared in this scope
   12 |     sum=sum*vec.at(i);
      |             ^~~
Language: C++

// include all standard library.
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

ll a[100000];

int main(int argc, char const *argv[]) {
  int n;
  cin >> in;

  for (int i = 0; i < n; i++) {
      cin >> a[i];
  }

  ll rst = a[0];
  for (int i = 1; i < n; i++) {
      rst *= a[i];
  }

  if( rst > 1 << 18 )
      cout << -1 << endl;
  else
      cout << rst << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:11:10: error: 'in' was not declared in this scope; did you mean 'n'?
   11 |   cin >> in;
      |          ^~
      |          n
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<math.h>
#include<bitset>
#include <numeric>
using namespace std;
using ll=long long;
using ld=long double;
using pint=pair<int,int>;
using pll=pair<ll,ll>;
#define LONG_INF 9223372036854775807
#define INF 1000000000LL
#define EPS 1e-10
#define rep(i, n) for(int i = 0; i < (int)n; i++)
#define dump(a) rep(d,a.size()){cout<<a[d];if(d!=a.size()-1)cout<<" ";else cout<<endl;}
#define all(v) v.begin(),v.end()
#define pb push_back


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

    ll N, ret=1, temp;
    cin >> N;
    for(ll i=0; i<N; i++){
        cin >> temp;
        if(ret>0){
            ret *= temp;
            if(ret > 1000000000000000000) ret = -1;
        }else if(ret<0){
            if (temp==0) ret =0;
        }
    cout << ret << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:42:2: error: expected '}' at end of input
   42 | }
      |  ^
a.cc:25:11: note: to match this '{'
   25 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
 
#define mod(cans) cans%10**9+7
#define debug(x) cout << "Debug" << x << "\n"
#define rep(i,n) for(unsigned i=0;i<n;i++)
#define repr(i,n) for(unsigned i=n-1;i>=0;i--)
#define rep1(i,n) for(unsigned i=1;i<=n;i++)
#define cin_pl(n,x) rep(i,n){cin>>x[i];}
#define cins(s,n) rep(i,n)cin>>s.at[i];
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
#define prians(Answer) cout<<Answer<<"\n"
#define TF(X) X==1?cout<<"YES\n":cout<<"NO\n"
#define elcon else{continue;}
 
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<string> vs;
typedef vector<vector<int> > matrix;
typedef pair<int,int> pii;
typedef vector<pii> vpi;
typedef greater<int> gi;
typedef vector<unsigned> vu;


ll gcd(ll x, ll y) { return (y == 0) ? x : gcd(y, x % y); }
bool is_prime(const unsigned n){
    switch(n){
        case 0:
        case 1: return false;
        case 2: return true;
    }
 
 
    for(unsigned i=2;i<n;++i){
        if(n%i == 0) return false;
    }
 
    return true;
}


bool F(string s,string t,string u)
{
    if(s[s.length()-1]==t[0]&&t[t.length()-1]==u[0])return true;
    return false;
}

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
   int n;cin>>n;
   vll a(n);cin_pl(n,a);sort(rall(a))
    ll sum=1;
    rep(i,n)
    {
        sum*=a[i];
        if(sum>1000000000000000000)
        {
            sum=-1;break;
        }
    }
    cout<<sum;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:57:38: error: expected ';' before 'll'
   57 |    vll a(n);cin_pl(n,a);sort(rall(a))
      |                                      ^
      |                                      ;
   58 |     ll sum=1;
      |     ~~                                
a.cc:61:9: error: 'sum' was not declared in this scope
   61 |         sum*=a[i];
      |         ^~~
a.cc:67:11: error: 'sum' was not declared in this scope
   67 |     cout<<sum;
      |           ^~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, l, r) for(register int i = l; i < r; i++)
#define hrp(i, l, r) for(register int i = l; i <= r; i++)
#define rev(i, r, l) for(register int i = r; i >= l; i--)
#define ms(n, t) memset(n, t, sizeof(n))
#define U 10050
#define pb push_back
#define int ll
#ifndef JOEON
#define D(...)
#define R(x, l)
#define sp
#endif
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
template<typename tn> inline tn next(void);
template<typename tn> inline ostream& operator << (ostream& os, const vector<tn>& v);
signed main(void)
{
	#ifdef JOEON
//		freopen("C:\\Users\\Joeon\\Desktop\\IN.txt", "r", stdin);
//		freopen("C:\\Users\\Joeon\\Desktop\\OUT.txt", "w", stdout);
	#endif
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n = next<int>(), ans = 1;
	while(n--)
	{
		ans *= next<int>();
		if (ans > 1000000000000000000 || a < 0) { cout<<-1<<endl; return 0; }
	}
	cout<<ans<<endl;
	return 0;
}
template<typename tn> inline tn next(void)
{
	tn k;
	cin>>k;
	return k;
}
template<typename tn> inline ostream& operator << (ostream& os, const vector<tn>& v)
{
	rep(i, 0, v.size()) os<<v[i]<<' ';
	return os;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:50: error: 'a' was not declared in this scope
   31 |                 if (ans > 1000000000000000000 || a < 0) { cout<<-1<<endl; return 0; }
      |                                                  ^
a.cc: In function 'std::ostream& operator<<(std::ostream&, const std::vector<_Tp>&)':
a.cc:44:13: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   44 |         rep(i, 0, v.size()) os<<v[i]<<' ';
      |             ^
a.cc:2:39: note: in definition of macro 'rep'
    2 | #define rep(i, l, r) for(register int i = l; i < r; i++)
      |                                       ^
Language: C++

#include <iostream>
using namespace std;

int main() {
	long N,ans;
	cin >> N;
	long* A;
	A = new long[N];
	for (int i = 0; i < N; i++) {
		cin >> A[i];
	}
	ans = A[0];
	for (int i = 1; i < N; i++) {
		if (ans > pow(10,18)) {
			ans = -1;
			break;
		}
		ans = ans * A[i];
	}
	cout << pow(10,18);
	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:27: error: 'pow' was not declared in this scope
   14 |                 if (ans > pow(10,18)) {
      |                           ^~~
a.cc:20:17: error: 'pow' was not declared in this scope
   20 |         cout << pow(10,18);
      |                 ^~~
Language: C++

/*
    Author:zzugzx
    Lang:C++
    Blog:blog.csdn.net/qq_43756519
*/
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define endl '\n'
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int mod=1e9+7;
//const int mod=998244353;
const double eps = 1e-10;
const double pi=acos(-1.0);
const int maxn=1e6+10;
const ll inf=0x3f3f3f3f;
const int dir[4][2]={{0,1},{1,0},{0,-1},{-1,0}};

int a[maxn];
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    //freopen("in.txt","r",stdin);
    //freopen("out.txt","w",stdout);
    int n;cin>>n;
    for(int i=1;i<=n;i++)cin>>a[i];
    sort(a+1,a+1+n);
    _int128 ans=1;
    for(int i=1;i<=n;i++){
        ans*=a[i];
        if(ans>1000000000000000000){
            cout<<-1;
            return 0;
        }
    }
    ll now=ans;
    cout<<now;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:5: error: '_int128' was not declared in this scope; did you mean '__int128'?
   35 |     _int128 ans=1;
      |     ^~~~~~~
      |     __int128
a.cc:37:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   37 |         ans*=a[i];
      |         ^~~
      |         abs
a.cc:43:12: error: 'ans' was not declared in this scope; did you mean 'abs'?
   43 |     ll now=ans;
      |            ^~~
      |            abs
Language: C

#include<stdio.h>
#include<math.h>
int main(){
    int i, n, a[100000];
    scamf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%d ",&a[i]);
    }
    int j;
    long long int ans = 1;
    for(j=0;j<n;j++){
        ans = ans * a[j];
    }
    if(ans<=pow(10,18)){
        printf("%lld", ans);
    }else{
        printf("-1");
    }
    return 0;
}


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