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

#include <bits/stdc++.h>
using namespace std;
int main()
{
    long long a；
    long long ans=1000000000000000000,ans2=1,flag=0;
    int n;
    scanf("%d",&n);
    for(int i=0; i<n; i++)
    {
        scanf("%lld",&a);
        if(a!=0)
            ans/=a;
        if(a==0)
            flag=1;
        ans2*=a;
    }
    if(flag)
        printf("0\n");
    else if(ans==0)
        printf("-1\n");
    else
        printf("%lld\n",ans2);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: expected initializer before 'long'
    6 |     long long ans=1000000000000000000,ans2=1,flag=0;
      |     ^~~~
a.cc:11:23: error: 'a' was not declared in this scope
   11 |         scanf("%lld",&a);
      |                       ^
a.cc:13:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |             ans/=a;
      |             ^~~
      |             abs
a.cc:15:13: error: 'flag' was not declared in this scope
   15 |             flag=1;
      |             ^~~~
a.cc:16:9: error: 'ans2' was not declared in this scope
   16 |         ans2*=a;
      |         ^~~~
a.cc:18:8: error: 'flag' was not declared in this scope
   18 |     if(flag)
      |        ^~~~
a.cc:20:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   20 |     else if(ans==0)
      |             ^~~
      |             abs
a.cc:23:25: error: 'ans2' was not declared in this scope
   23 |         printf("%lld\n",ans2);
      |                         ^~~~
Language: C++

#include<bits/stdc++.h>
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 at=a[0];
  sort(a.begin(),a.end());
  for(int i=0;i<n;i++){
    at*=a[i];
    if(at>=1000000000000000000||at<0){
      break;
    }
  }
  if(at>=1000000000000000000||at<0){
    cout<<-1<<endl;
  }
  else cout<<at<<endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: expected unqualified-id before ';' token
    5 |   int n,;
      |         ^
Language: C++

#include <cassert>
#include <cctype>
#include <cerrno> 
#include <cassert>
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cwchar>
#include <cwctype>
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>
#include <array>
#include <atomic>
#include <chrono>
#include <codecvt>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
using namespace std;
int main() {
    long long n,ans;
    ans=1;
    cin>>n;
    vector<int> v(n);
    for(int i=0;i<n;i++){
    	cin>>v.at(i);
       }
  for(int i=0;i<n;i++){
  	ans=ans*v.at(i);
  	if(ans>>1000000000000000000){
      ans=0-1;
  		break;
  		}
    if(v.at(i)==0){
      ans=0-1;
      break;
        	}
        
    cout << ans<<endl;
       }

Compiler output:
a.cc: In function 'int main()':
a.cc:91:15: warning: right shift count >= width of type [-Wshift-count-overflow]
   91 |         if(ans>>1000000000000000000){
      |            ~~~^~~~~~~~~~~~~~~~~~~~~
a.cc:101:9: error: expected '}' at end of input
  101 |        }
      |         ^
a.cc:81:12: note: to match this '{'
   81 | int main() {
      |            ^
Language: C++

#include<iostream>
using namespace std;

int main() {
  int N;
  cin >> N;
  int64_t B = 1000000000000000000;
  int64_t C = 1000000000;
  int64_t A;
  auto sum = 1;
  int K = 0;
  for (int i = 0; i < N; i++) {
    cin >> A;
    if (sum > C && A > C){
      K++;
      sum = 1;
    }
      
    sum *= A;
    
    if (sum > B) {
      K++;
      sum = 1;
    }
  }
  if (sum <= B && K = 0) {
    cout << sum << endl;
  }
  else if (sum == 0) {
    cout << sum << endl;
  }
  else {
    cout << -1 << endl;
  }
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:16: error: lvalue required as left operand of assignment
   26 |   if (sum <= B && K = 0) {
      |       ~~~~~~~~~^~~~
Language: C++

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

int main() {
int N;
  int x;
  int a;
  for (int i = 0; i < N; i++) {

    
      cin>>a;
      x == x* a;
    

   
  }
if (x > 10**18){
  cout << -1 << endl;
}
  else { 
    cout << x <<endl;
}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: invalid type argument of unary '*' (have 'int')
   17 | if (x > 10**18){
      |            ^~~
Language: C

#include<bits/stdc++.h>
#define ll long long int
using namespace std;
int main()
{
    ll m=1000000000000000000;
    ll n;
    cin >> n;
    ll a[n],i,f=1;
    for(i=0;i<n;i++)
    {
        cin >> a[i];
        if(a[i]==0)
            f=0;
    }
    if(f==0)
    {
        cout << "0" << endl;
        return 0;
    }
    sort(a,a+n);
    ll s=a[n-1];
    if(s>m)
    {
        cout << "-1" << endl;
        return 0;
    }
    for(i=n-2;i>=0;i--)
    {
        s=s*a[i];
    if(s>m)
    {
        cout << "-1" << endl;
        return 0;
    }
    }
    cout << s << endl;
    return 0;
}


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

#include<iostream>
using namespace std;
 
int main()
{
    long long n;
    cin >> n;
    unsigned long double a, b = 1 ,c;
 
        for (int i = 0; i < n; i++) {
            cin >> a;
                b = a*b;
        }
 
        if(b > 1000000000000000000){
            cout << -1 << endl;
        }else if(b < 0){
            cout << -1 << endl;
        }else{
            cout << (unsigned long long)b << endl;
        }
 
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'unsigned' specified with 'long double'
    8 |     unsigned long double a, b = 1 ,c;
      |     ^~~~~~~~
a.cc:8:5: error: 'unsigned' specified with 'long double'
a.cc:8:5: error: 'unsigned' specified with 'long double'
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;cin>>n;
  long long int mx=1e18,ans=1;
  while(n--){
    long long int k;
    cin>>k;
    ans*=k;
    if(k==0){cout<<0<<endl;return 0;}
    if(ans>max){cout<<-1<<endl;return 0;}
  }
cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator>'
   11 |     if(ans>max){cout<<-1<<endl;return 0;}
      |        ~~~^~~~
Language: C++

#include <iostream>
using namespace std;

int main(){
  int N;
  cin >> N;
  
  int i;
  vector<long long int> A(100000+1);
  long long int ans=1, THR=1000000000000000000;
  
  for(i=1;i<=N;i++){
    cin >> A[i];
    if( A[i] == 0 ){
      cout << 0 << endl;
      return 0;
    }
  }
  
  for(i=1;i<=N;i++){
    ans *= A[i];
    if( ans > THR ){
      cout << 0 << endl;
      return 0;
    }
  }
  
  cout << ans << 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<long long int> A(100000+1);
      |   ^~~~~~
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 'long'
    9 |   vector<long long int> A(100000+1);
      |          ^~~~
a.cc:13:12: error: 'A' was not declared in this scope
   13 |     cin >> A[i];
      |            ^
a.cc:21:12: error: 'A' was not declared in this scope
   21 |     ans *= A[i];
      |            ^
Language: C++

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

void test_case()
{
	int n;
	int64_t mul=0;
	cin>>n;
	string s;
	int64_t a[n];
	rep(i,0,n)
	{
		cin>>a[i];
		
		}
		int len=0;
		rep(i,0,n)
		{
			len+=to_string(a[i]).length();
			
			}
			if(len>18)
			cout<<-1;
			else
		{
			rep(i,0,n)
		{
			mul*=a[i];
			
			}
			
			cout<<mul<<"\n";
	}
	}

int main()
{
	fast;
	
	
	test_case();
	
	return 0;
	}


Compiler output:
a.cc: In function 'void test_case()':
a.cc:11:13: error: 'i' was not declared in this scope
   11 |         rep(i,0,n)
      |             ^
a.cc:11:9: error: 'rep' was not declared in this scope
   11 |         rep(i,0,n)
      |         ^~~
a.cc: In function 'int main()':
a.cc:38:9: error: 'fast' was not declared in this scope
   38 |         fast;
      |         ^~~~
Language: Java

import java.util.Scanner;

public class Main3 {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		long a = sc.nextInt();
		
		long c = 0;
		for(long i=0; i < a; i++) {
			long b = sc.nextLong();
			b *= b;
			c = b;
		}
		if (c > 999999999999999999L) {
			c = -1;
		}

		// 出力
		System.out.println(c);
	}

}

Compiler output:
Main.java:3: error: class Main3 is public, should be declared in a file named Main3.java
public class Main3 {
       ^
1 error
Language: C++

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

int main() {
int N;
  int x;
  int a;
  for (int i = 0; i < N; i++) {

    
      cin>>a;
      x *= a;
    

   
  }
if (x> 10**18){
  cout << -1 << endl;
}
  else {cout << x<<endl;
}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:11: error: invalid type argument of unary '*' (have 'int')
   17 | if (x> 10**18){
      |           ^~~
Language: C++

#include <bits/stdc++.h>
#define REP(i, n) for(long long i=0; i<n; i++)
#define REPR(i, n) for(long long i=n-1; i>=0; i--)
#define FOR(i, m, n) for(long long i=m; i<=n; i++)
#define FORR(i, m, n) for(long long i=m; i>=n; i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VSORTR(v) sort(v.rbegin(), v.rend());
#define ALL(v) (v).begin(),(v).end()
#define FIN ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

using namespace std;
using ll = long long;
using ull = unsigned long long;
using vll = vector<ll>;
using vvll = vector<vector<ll>>;
using P = pair<ll, ll>;
const ll mod = 1e9+7;
const ll inf = 1e15;
const ull big = 1000000000000000000;

int main(){FIN

    ull n;cin>>n;
    ull ans=1;
    vector<ull> a(n); 
    REP(i,n) cin>>a[i];
    VSORT(a);
    if(a[0]==0){
        cout<<0<<endl;
        return 0;
    }

    ll count=0;
    REP(i,n){
        count+=log10(a[i]);
    }
    if(count>=19){
        cout<<-1<<endl;
        return 0;
    }

    REP(i,n){

        ans *= a[i];
        if (i>0 && a[i]*a[i-1]>big]){
            cout<<-1<<endl;
            return 0;
        }
        if (a[i]>big){
            cout<<-1<<endl;
            return 0;
        }
        if(ans>big){
            cout<<-1<<endl;
            return 0;
        }
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:46:35: error: expected ')' before ']' token
   46 |         if (i>0 && a[i]*a[i-1]>big]){
      |            ~                      ^
      |                                   )
a.cc:46:35: error: expected primary-expression before ']' token
Language: C++

#include <bits/stdc++.h>
#define ll long double
#define rep(i,a,b) for(ll int i=a; i<b; i+=1)
#define repr(i,a,b) for(ll i=a; i<=b; i+=1)
#define vec vector<ll>
#define map map<string,int>
#define repa(p,A) for(auto p:A)
#define pb push_back
#define sort(a) sort(a.begin(),a.end())
#define reverse(a) reverse(a.begin(),a.end())
const double PI=acos(-1);
 
using namespace std;
 
int main( ) {
    ll N;
    cin>>N;
    ll count=1;
    rep(i,1,N+1) {
        ll A;
        cin>>A;
        count*=A;
        
        }
    
    if (count>pow(10,18)) {
            cout<<-1;
            return 0;
            }
    cout<<count<<endl;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:2:17: error: two or more data types in declaration of 'i'
    2 | #define ll long double
      |                 ^~~~~~
a.cc:3:24: note: in expansion of macro 'll'
    3 | #define rep(i,a,b) for(ll int i=a; i<b; i+=1)
      |                        ^~
a.cc:19:5: note: in expansion of macro 'rep'
   19 |     rep(i,1,N+1) {
      |     ^~~
a.cc:19:9: error: 'i' was not declared in this scope
   19 |     rep(i,1,N+1) {
      |         ^
a.cc:3:36: note: in definition of macro 'rep'
    3 | #define rep(i,a,b) for(ll int i=a; i<b; i+=1)
      |                                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
const long long m=1e18;
long long a=1,b;
char c[100005][20];
char str1[20000000] = {1};
char big_data_multi (char *pstr1, char *pstr2)
{
    int length_str1 = strlen(pstr1);
    int length_str2 = strlen(pstr2);
    int *pstr3 = (int*)malloc(sizeof(int)*(length_str1+length_str2));
    memset(pstr3, 0, sizeof(int)*(length_str1+length_str2));//一定要初始化，否则乱码
    for(int i = 0; i < length_str2; i++)//循环累乘相加
    {
        for(int  j = 0;  j < length_str1; j++)
        {
            pstr3[i + j + 1] += (pstr1[j] - '0') * (pstr2[i] - '0');
        }
    }
    for (int i = length_str1 + length_str2 - 1; i >= 0; i--)
    {
        if(pstr3[i] >= 10)
        {    
            pstr3[i - 1] += pstr3[i] / 10;
            pstr3[i] = pstr3[i]%10;
        }
    }
    int i = 0;
    while (pstr3[i] == 0)
    {
        i++;
    }
    char *pstr4 = (char*)malloc(sizeof(char)*(length_str1 + length_str2 + 1));
    int j = 0;
    for(; j < length_str1+length_str2 && i < length_str1+length_str2; j++,i++)
    {
        pstr4[j] = pstr3[i] + '0';
    }
    pstr4[j] = '\0';
    if(strcpy(str1,pstr4));
}
int main(int argc, char** argv) {
	int n;
	int flag=0;
	cin>>n;
	for(int i=0;i<n;i++)
	{
		scanf("%s",c[i]);
		if(strcmp(c[i],"0")==0) flag=1;
	}
	if(flag==1)
	{
		cout<<"0";
		return 0;
	}
	strcpy(str1, c[0]);
	for(int i=1;i<n;i++)
	{
		big_data_multi (str1, c[i]);
		if(strcmp(str1,"1000000000000000000")>0)
		{
			cout<<"-1";
			return 0;
		}	
	}
	
	else printf("%s",str1);
	return 0;
}

Compiler output:
a.cc: In function 'char big_data_multi(char*, char*)':
a.cc:41:1: warning: no return statement in function returning non-void [-Wreturn-type]
   41 | }
      | ^
a.cc: In function 'int main(int, char**)':
a.cc:67:9: error: 'else' without a previous 'if'
   67 |         else printf("%s",str1);
      |         ^~~~
Language: C++

/*B*/
#include<bits/stdc++.h>
using namespace std;
int main(){
    int N;
    double A;
    double ans=1;
    unsigned long long MAX=1000000000000000000;
    cin >> N;
    for(int i=0;i<N;i++){
        cin >> A;
        ans*=A;
        if(ans-MAX>0){
            int flag=1;
        }
    }

    if(flag){
        cout << -1 << endl; 
    }
    else{
        cout << (uint64_t)ans << endl;
    }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:8: error: 'flag' was not declared in this scope
   18 |     if(flag){
      |        ^~~~
Language: Java

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Math {

	static BigInteger limit = new BigInteger("1000000000000000000");

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			int num = sc.nextInt();
			List<BigInteger> values = new ArrayList<BigInteger>();
			for (int i = 0; i < num; i++) {
				values.add(sc.nextBigInteger());
			}
			Collections.sort(values);

			BigInteger result = BigInteger.ONE;
			for (BigInteger value : values) {
				result = result.multiply(value);

				if (result.equals(BigInteger.ZERO)) {
					System.out.println(0);
					return;
				} else if (limit.compareTo(result) < 0) {
					System.out.println(-1);
					return;
				}
			}

			System.out.println(result.toString());

		} catch (Exception e) {
			System.out.println(-1);
			e.printStackTrace();
		}

	}
}


Compiler output:
Main.java:7: error: class Math is public, should be declared in a file named Math.java
public class Math {
       ^
1 error
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();
    Integer[] b = new Integer[A];
    int c=1;
    for(int i=0; i < A; i++){
      b[i] = sc.nextInt();
      c = c*b[i];
  	}
  	if(c>1000000000000000000){
    	System.out.println(-1);
  	}
  	else{  
   		System.out.println(c);
  	}
  }
}   


Compiler output:
Main.java:13: error: integer number too large
  	if(c>1000000000000000000){
  	     ^
1 error
Language: Java

import java.util.Scanner;
import java.math.BigInteger;
import java.util.function.BiFunction;

public class abc169b {
    public static BigInteger solve(BigInteger res,BigInteger n){
        return res.multiply(n);
    }

    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        long n=sc.nextLong();
        BigInteger b=new BigInteger("1000000000000000000");
        BigInteger res=new BigInteger("1");
        boolean flag=true;
        while(n-->0){
            long l=sc.nextLong();
            if(l==0){
                System.out.println(0);
                System.exit(0);}
            res=solve(res,new BigInteger(String.valueOf(l)));
            if(res.compareTo(b)>0){
                System.out.println(-1);
                flag=false;
                        break;}
        }
        if(flag)
            System.out.println(res);
    }
}


Compiler output:
Main.java:5: error: class abc169b is public, should be declared in a file named abc169b.java
public class abc169b {
       ^
1 error
Language: Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = nextInt(scanner);
        long[] a = new long[n];
        long p = 1;
        boolean isZero = false;
        for (int i = 0; i < n; i++) {
            a[i] = Long.parseLong(scanner.next());
            if (a[i] == 0) {
                isZero = true;
            }
        }
        if (isZero) {
            System.out.println(0);
            return;
        }
        try {
            for (int i = 0; i < n; i++) {
                p = Math.multiplyExact(p, a[i]);
            }
        }catch (Exception e) {
            System.out.println(-1);
            return;
        }
        if (p > 1000000000000000000L) {
            System.out.println(-1);
            return;
        }
        System.out.println(p);


    }

}





Compiler output:
Main.java:6: error: cannot find symbol
        int n = nextInt(scanner);
                ^
  symbol:   method nextInt(Scanner)
  location: class Main
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
int main(){
  int A, N[];
  cin >> A;
  int sum = 1;
  for(int i = 0; i < A; i++){
    cin >> N[i];
    sum *= N[i];
  }
  if(sum < 10 ^ 18){
    cout << -1 <<endl;
  }
  else{
    cout << sum <<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: storage size of 'N' isn't known
    5 |   int A, N[];
      |          ^
Language: C++

#include<algorithm>
#include<math.h>
#include<cmath>
using namespace std;
int main(){
    long long  n;
    
    long long  k =1;
    cin >> n;
    vector<int>a(n);
    for (int i = 0; i<n;i++){
        cin >> a[i];
    }
    for (int i = 0; i < n ; i++){
        k *=a[i];
    }
    if(k >pow(10,18)){
        cout << "-1";
    }else {
        cout << k;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'cin' was not declared in this scope
    9 |     cin >> n;
      |     ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    3 | #include<cmath>
  +++ |+#include <iostream>
    4 | using namespace std;
a.cc:10:5: error: 'vector' was not declared in this scope
   10 |     vector<int>a(n);
      |     ^~~~~~
a.cc:4:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    3 | #include<cmath>
  +++ |+#include <vector>
    4 | using namespace std;
a.cc:10:12: error: expected primary-expression before 'int'
   10 |     vector<int>a(n);
      |            ^~~
a.cc:12:16: error: 'a' was not declared in this scope
   12 |         cin >> a[i];
      |                ^
a.cc:15:13: error: 'a' was not declared in this scope
   15 |         k *=a[i];
      |             ^
a.cc:18:9: error: 'cout' was not declared in this scope
   18 |         cout << "-1";
      |         ^~~~
a.cc:18:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:20:9: error: 'cout' was not declared in this scope
   20 |         cout << k;
      |         ^~~~
a.cc:20:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

// #include <bits/stdc++.h>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <math.h>
using namespace std;

int main(){

    long N;
    long ans=1;
    long upper=1;

    cin >> N;

    long A[100000];

    for(int i(0);i<N;++i){
        cin >> A[i];
        if(A[i]==0){
            ans = 0;
        }
        if(i==N-1 && ans == 0){
            printf("%ld\n",ans);
            return 0;
        }
    }


    for(int i(0);i<18;++i){
        upper = upper * 10;
    }

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

    if(ans > upper){
        ans = -1;
        break;
    }

    printf("%ld\n",ans);

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:40:9: error: break statement not within loop or switch
   40 |         break;
      |         ^~~~~
Language: C++

n = int(input())
prod=1

for i in range(n):
    x = int(input())
    prod *= x
 
if prod<=1e18:
    print(prod)
else:
    print("-1")


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

import java.math.BigDecimal;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class Abc169b {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        sc.nextLine();
        List<BigDecimal> list = IntStream.range(0, n).mapToObj(m -> BigDecimal.valueOf(sc.nextDouble())).collect(Collectors.toList());
        BigDecimal x = BigDecimal.valueOf(Math.pow(10, 18));
        BigDecimal result = BigDecimal.valueOf(1);
        for (BigDecimal decimal : list) {
            if (result.compareTo(x) > 0) {
                break;
            } else {
                result = result.multiply(decimal);
            }
        }
        if (result.compareTo(x) > 1) {
            System.out.println("-1");
        } else {
            System.out.println(result.stripTrailingZeros().toPlainString());
        }
    }
}


Compiler output:
Main.java:7: error: class Abc169b is public, should be declared in a file named Abc169b.java
public class Abc169b {
       ^
1 error
Language: C++

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

int main(){
int N;
  cin >> N ;
vector<int> A(N);
  
 for(int i = 0; i < N ; i++){
cin >> A.at(i);
}
  int T = 1;
  int S = 1;
  int R = 1;
  for(int i = 0; i < N/3 ; i++){
  T = T*A.at(i);
  }
   for(int i = N/3; i < 2N/3 ; i++){
  S = S*A.at(i);
  }
  for(int i = 2N/3; i < N ; i++){
  R = R*A.at(i);
  }
 
  if(T <= 1000000){
    if(S <= 1000000){
      if(R <= 1000000){
cout << S*T*R << endl;
  }}}
  else{
  cout << -1 << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:25: error: unable to find numeric literal operator 'operator""N'
   21 |    for(int i = N/3; i < 2N/3 ; i++){
      |                         ^~
a.cc:24:15: error: unable to find numeric literal operator 'operator""N'
   24 |   for(int i = 2N/3; i < N ; i++){
      |               ^~
Language: Java


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


		long[] A = new long[N];
		for (int i = 0; i < N; i++) {
			A[i] =  sc.nextLong();
			if(A[i] == 0) {
				System.out.println(0);
				return;
			} else if (A[i]> 1000000000000000000L) {
				System.out.println(-1);
				return;
			}
		}

		long sum = 1;
		for (int i = 0; i < N; i++) {
			if (((sum * A[i]) % 1000000000000000001L) == 0) {
				sum *= A[i]; 
			} else {
				sum = -1;
				break;
			}
		}

			System.out.println(sum);
		sc.close();
	}
}

Compiler output:
Main.java:4: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

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

int main(){
  long n;
  cin>>n;
  long long ans=1;
  for(long i=0;i<n;i++){
    long long a;
    cin>>a;
    ans*=a;
  }
  if(ans>1000000000000000000)){
    cout<<-1;
  }else{
    cout<<long(ans);
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:30: error: expected primary-expression before ')' token
   13 |   if(ans>1000000000000000000)){
      |                              ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n;
  cin>>n;
  unsigned long long int arr[n];
  unsigned long long int pro=1,temp;
  int flag=0,flag1=0;
  for(int a=0;a<n;a++)
  {
    cin>>arr[a];
    if(arr[a]==0)
    {
        flag=1;
        cout<<"0";
        break;
     }
  }
  if(flag==0)
  {
  	for(int a=0;a<n;a++)
  	{
  		temp=pro;
  		pro*=arr[a];
  		if(pro>1000000000000000000 || (pro/a)!=temp))
  		{
	  		 cout<<"-1";
	  		 flag1=1;
	  		 break;
  		}
  	}
  	if(flag1==0)
  	cout<<pro;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:61: error: expected primary-expression before ')' token
   26 |                 if(pro>1000000000000000000 || (pro/a)!=temp))
      |                                                             ^
Language: C++

#include <bits/stdc++.h>
#include <boost/multiprecision/cpp_int.hpp>
#define rep(i,m,n) for(int i=m;i<n;i++)
#define co(n) cout<<n<<endl
#define all(n) (n).begin(),(n).end()
#define pb(n,m) n.push_back(m)
#define pi(n,m) n.insert(n.begin(),m);
#define ee(n) n.erase(n.end()-1)
#define eb(n) n.erase(n.begin())
#define check(n) reverse(all(n));rep(z,0,n.size())cout<<n[z];co("");reverse(all(n));
using namespace std;
using bint=boost::multiprecision::cpp_int;
typedef long long ll;
typedef unsigned long long ull;

int main(){
  long double c=0,a;
  int n;
  ull x[n],z=1;
  cin>>n;
  bool f=true;
  rep(i,0,n) cin>>x[i];
  rep(i,0,n){
    if(x[i]==0){f=true; c=0; break;}
    c+=log10(x[i]);
  }
  if(c>18) f=false;
  if(c==0){co(0) return 0;}
  if(f==true{
    rep(i,0,n){
      z*=x[i];
    }
    co(z);
  }
  else co(-1);
  return 0;
}


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

#include <bits/stdc++.h>
#include <boost/multiprecision/cpp_int.hpp>
#define rep(i,m,n) for(int i=m;i<n;i++)
#define co(n) cout<<n<<endl
#define all(n) (n).begin(),(n).end()
#define pb(n,m) n.push_back(m)
#define pi(n,m) n.insert(n.begin(),m);
#define ee(n) n.erase(n.end()-1)
#define eb(n) n.erase(n.begin())
#define check(n) reverse(all(n));rep(z,0,n.size())cout<<n[z];co("");reverse(all(n));
using namespace std;
using bint=boost::multiprecision::cpp_int;
typedef long long ll;
typedef unsigned long long ull;

int main(){
  long double c=0,a;
  int n;
  co(s);
  ull x[n],z=1;
  cin>>n;
  bool f=true;
  rep(i,0,n) cin>>x[i];
  rep(i,0,n){
    if(x[i]==0){f=true; c=0; break;}
    c+=log10(x[i]);
  }
  if(c>18) f=false;
  if(c==0){co(0) return 0;}
  if(f==true{
    rep(i,0,n){
      z*=x[i];
    }
    co(z);
  }
  else co(-1);
  return 0;
}


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

/* package codechef; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner in=new Scanner(System.in);
		int n=in.nextInt();
		int p=1;
	    
	
			for(int i=0;i<n;i++)
		      {
		          
		         int a=in.nextInt();
		          p=p*a;
		      }
		      
		      System.out.println(p);
	}
}


Compiler output:
main.c:3:1: error: unknown type name 'import'
    3 | import java.util.*;
      | ^~~~~~
main.c:3:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    3 | import java.util.*;
      |            ^
main.c:4:1: error: unknown type name 'import'
    4 | import java.lang.*;
      | ^~~~~~
main.c:4:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    4 | import java.lang.*;
      |            ^
main.c:5:1: error: unknown type name 'import'
    5 | import java.io.*;
      | ^~~~~~
main.c:5:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    5 | import java.io.*;
      |            ^
main.c:8:1: error: unknown type name 'class'
    8 | class Codechef
      | ^~~~~
main.c:9:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    9 | {
      | ^
Language: C++

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

long long main() {
  int N;
  vector<int> vec(N);
  cin >> N;
  long long c = 1;
  long long x = 1000000000000000000;
  
  for(int i = 0;i < N;i++) {
    cin >> vec.at(i);
    c = c * vec.at(i);
  }
  if(c <= x) {
    cout << c << endl;
  } else {
  	cout << "-1" << endl;
  }
  return 0;
}


Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

/*
    @uthor: Amit Kumar
    user -->GitHub: drviruses ; CodeChef: dr_virus_ ; Codeforces,AtCoder,Hackerearth,Hakerrank: dr_virus;
*/
#include <bits/stdc++.h>
#include <chrono>
using namespace std;
using namespace std::chrono;
/* #include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
#define ln mp::cpp_int */
#define ll    long long
#define ld    long double
#define ull   unsigned long long
#define endl "\n"
ll google_itr = 1;
#define google(x) cout<<"\Case #"<<x<<"\:"
#define pi 3.14159265358979323846264338327950L

const ll mod = 1e9+7;
const ll inf = 1e18;

ll popcount(ll num){
    num = num - ((num >> 1) & 0x55555555);
    num = (num & 0x33333333) + ((num >> 2) & 0x33333333);
    return ((num + (num >> 4) & 0xF0F0F0F) * 0x1010101) >> 24;
}


void virus(){
    ln mul = 1;
    ll n;
    cin>>n;
    for(auto i=0;i<n;i++){
        ln t;
        cin>>t;
        if(t==0){
            cout<<"0";
            return;
        }
        mul *= t;
        
    }
    ln p = 1000000000000000000;
  if(mul > p) {
      cout<<"-1"; return;
  }  
 cout<<mul;
}


int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
  /*#ifndef ONLINE_JUDGE
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
    #endif*/

    ll t=1;
   // cin>>t;
    while(t--){
           auto start = high_resolution_clock::now();
           virus();
           auto stop = high_resolution_clock::now();
           auto duration = duration_cast<seconds>(stop - start);
         //cout << "Time: "<<duration.count()<<endl;
        //your code goes here
    }
    return 0;
}

Compiler output:
a.cc: In function 'void virus()':
a.cc:31:5: error: 'ln' was not declared in this scope; did you mean 'yn'?
   31 |     ln mul = 1;
      |     ^~
      |     yn
a.cc:35:11: error: expected ';' before 't'
   35 |         ln t;
      |           ^~
      |           ;
a.cc:36:14: error: 't' was not declared in this scope
   36 |         cin>>t;
      |              ^
a.cc:41:9: error: 'mul' was not declared in this scope; did you mean 'fmul'?
   41 |         mul *= t;
      |         ^~~
      |         fmul
a.cc:44:7: error: expected ';' before 'p'
   44 |     ln p = 1000000000000000000;
      |       ^~
      |       ;
a.cc:45:6: error: 'mul' was not declared in this scope; did you mean 'fmul'?
   45 |   if(mul > p) {
      |      ^~~
      |      fmul
a.cc:45:12: error: 'p' was not declared in this scope
   45 |   if(mul > p) {
      |            ^
a.cc:48:8: error: 'mul' was not declared in this scope; did you mean 'fmul'?
   48 |  cout<<mul;
      |        ^~~
      |        fmul
Language: C++

#include <iostream>
#include <math.h>
using namespace std;
int main()
{
  long n;
  cin>>n;
  long long arr[n],mul=1;
  for(long i=0;i<n;i++)
  {
   	cin>>arr[i]; 
  }
  int k=0;
  for(long i=0;i<n;i++)
  {
    mul=mul*arr[i];
    if(mul>math.pow(10,18))
    {
      k=1;
      cout<<-1<<endl;
      break;
    }
  }
  if(k==0)
  {
   	cout<<mul<<endl; 
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: 'math' was not declared in this scope
   17 |     if(mul>math.pow(10,18))
      |            ^~~~
Language: C++

#include <iostream>
#include <cmath>


int main(void){
    unsigned int N;
    std::cin >> N;
    unsigned long long c = 0;
    unsigned long long mul = 1;
    bool over_flg = false;
    for(int i = 0; i < N; i++){
        std::cin >> c;
        if(log(c) / log(10) + log(mul) / log(10) >= 18){
            over_flg = true;
        }
        if(c == 0){
            std::cout << 0 << std::endl;
            return 0;
        }
        if(over_flg == false){
            mul *= c;
        }
        if(log(mul) / log(10) >= 18){
            over_flg = true
        }
    }
    if(over_flg == false){
        std::cout << mul << std::endl;
    }else{
        std::cout << -1 << std::endl;
    }
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:28: error: expected ';' before '}' token
   24 |             over_flg = true
      |                            ^
      |                            ;
   25 |         }
      |         ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
int N;
  cin >>N;
    vector<int> A(N);
  for(int i=0;i<N;i++){
    cin >>A.at(i);}
int64_t seki=A.at(0);
  for(int i=1;i<N;i++){
seki *= A.at(i);}
if(seki >1000000000000000000){
cout<<"-1"<<endl;}
  else{
  cout<<seki<<endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:21: error: expected '}' at end of input
   16 |   cout<<seki<<endl;}
      |                     ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<algorithm>//sort(all(変数),greater<型名>())で降順に、*max_element(all(変数))で最大値を獲得
#include<bits/stdc++.h>
#include<cmath>//切り上げceil(値)
#include<deque>
#include<iomanip>//setprecision(数字)
#include<iostream>
#include<list>
#include<map>
#include<numeric>
// xとyのgcdは__gcd(x,y),xとyのlcmは(x*y)/__gcd、accumulate(all(変数),0)で要素の全加算
#include<queue>//priority_queue<型名> 変数
#include<set>
#include<stack>
#include<string>//変数.substr(どこから,いくつ)
#include<vector>
#define rep(i,n)  for(ll i=0; i<n; i++)
#define rrep(i,n) for(ll i=n-1; 0<=i; i--)
#define vll vector<ll>
#define vi vector<int>
#define all(x) (x).begin(),(x).end()
#define INF 1e9
using ll = long long;
using namespace std;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

int main(){
  int n; cin >> n;
  ll ans = 1;
  sort(all(a));
  rep(i,n){
    ll a; cin >> a;
    ans *= a;
    if(1e18 < ans){
      cout << -1;
      return 0;
    }
  }
  cout << ans;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:12: error: 'a' was not declared in this scope
   30 |   sort(all(a));
      |            ^
a.cc:20:17: note: in definition of macro 'all'
   20 | #define all(x) (x).begin(),(x).end()
      |                 ^
Language: C++

#include <bits/stdc++.h>
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/rational.hpp>
using namespace std;
namespace mp = boost::multiprecision;
// 任意長整数型
using ll= mp::cpp_int;


#define REP(i,n) for(ll i=0; i<(n); i++)
#define REP2(i,x,n) for(ll i=x; i<(n); i++)
#define REP3(i,x,n) for(ll i=x; i>(n); i--)
#define zero_pad(num) setfill('0') << std::right << setw(num)
#define space_pad(num) setfill(' ') << std::right << setw(num)
#define ALL(n) begin(n),end(n)
struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
const long long INF = numeric_limits<long long>::max();

int main(){
    long long N;
    ll ans=1;
    cin >> N;
    vector<ll>A(N);
    for (ll i = 0; i < N; i++)
    {
        ll a;
        cin>>a;
        if(ans==0){
            cout << "0" << endl;
            return 0;
        }
        ans *=a;
        if(ans > 1000000000000000000)[
            cout << "-1" << endl;
            return 0;
        ]
    }

    
    cout << ans << endl;
    
    return 0;
}


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

#include<stdio.h>
int main(void)
{
  int a,b,d,n,i;
  int c=1;
  scanf("%d",&n);
  
  for(i=0;i<n;i++){
    scanf("%d",&b);
    c=b*c;
    b=1;

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:1: error: expected declaration or statement at end of input
   14 | }
      | ^
Language: C++

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

int main(){
int N;
  cin >> N ;
vector<int> A(N);
  
 for(int i = 0; i < N ; i++){
cin >> A.at(i);
}
  int T = 1;
  int S = 1;
  for(int i = 0; i < N/2 ; i++){
  T = T*A.at(i);
  }
   for(int i = N2/; i < N ; i++){
  S = S*A.at(i);
  }
 
  if(S*T <= 1000000000000000000){
cout << S*T << endl;
  }
  else{
  cout << -1 << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:16: error: 'N2' was not declared in this scope; did you mean 'N'?
   20 |    for(int i = N2/; i < N ; i++){
      |                ^~
      |                N
a.cc:20:19: error: expected primary-expression before ';' token
   20 |    for(int i = N2/; i < N ; i++){
      |                   ^
Language: C++

#include <stdio.h>
#include <iostream>

int is_product_overflow(long long a, long long b) {
	long long prod = a * b;
	return (prod / b != a);
}

int main() {

	int  N;
	_int64 mul = 1,input;
	std::cin >> N;
	int flag = 0;

	for (int i = 0;i < N;i++) {
		std::cin >> input;
		flag = is_product_overflow(mul, input);
		if (flag == 1)break;
		mul = mul * input;
	}

	if (flag != 1 && mul <= 1000000000000000000) {
		std::cout << mul << std::endl;
	}

	else {
		std::cout << "-1" << std::endl;
	}


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: '_int64' was not declared in this scope
   12 |         _int64 mul = 1,input;
      |         ^~~~~~
a.cc:17:29: error: 'input' was not declared in this scope; did you mean 'int'?
   17 |                 std::cin >> input;
      |                             ^~~~~
      |                             int
a.cc:18:44: error: 'mul' was not declared in this scope
   18 |                 flag = is_product_overflow(mul, input);
      |                                            ^~~
a.cc:23:26: error: 'mul' was not declared in this scope
   23 |         if (flag != 1 && mul <= 1000000000000000000) {
      |                          ^~~
Language: C++

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

int main() {
  int n;
  cin >> n;
  int m;
  int all=1;
  for(int i; i<n; i++){
    cin >> m;
    all = m*all
  }
  
  if (all > 1000000000000000000){
    all = 0-1;
  }
  cout << all <<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: expected ';' before '}' token
   11 |     all = m*all
      |                ^
      |                ;
   12 |   }
      |   ~
Language: C++

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

int keta(unsigned long long num){
    int digit=0;
    while(num!=0){
        num /= 10;
        digit++;
    }
    return digit;
}

int main(){
  int n; cin >> n;
  unsigned long long x[n];
  for (int i = 0; i < n; i++) cin >> x[i];
  unsigned long long count = 1;
  bool xx = true;
  
  for (int i = 0; i < n; i++){
    if(keta(count)+keta(a[i])>=19){
      xx = false;
      break;
    }
    count *= x[i];
    if (count > 1000000000000000000){
      xx = false;
      break;
    }
  }
  for (int i = 0; i < n; i++)
    if (x[i] == 0) count =0;
  if(xx || count == 0) cout << count << endl;
  else cout << -1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:25: error: 'a' was not declared in this scope
   21 |     if(keta(count)+keta(a[i])>=19){
      |                         ^
Language: C++

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

int main(){

    int N;
    cin >> N;
    long long arr[N];
    for(int i=0; i < N; i++){
        cin >> arr[i];
    }

    __int64 S=1;

    for(int i = 0; i < N; i++){
        S = S * arr[i];
    }

    if(S > 1000000000000000000){
        cout << "-1" << endl;
    }
    else{
        cout << S << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: '__int64' was not declared in this scope; did you mean '__ynf64'?
   13 |     __int64 S=1;
      |     ^~~~~~~
      |     __ynf64
a.cc:16:9: error: 'S' was not declared in this scope
   16 |         S = S * arr[i];
      |         ^
a.cc:19:8: error: 'S' was not declared in this scope
   19 |     if(S > 1000000000000000000){
      |        ^
Language: C

#include<bits/stdc++.h>
using namespace std;
int main()
{
  long n,i,j=1;
  cin>>n;
  unsigned long a[n];
  for(i=0;i<n;i++)
  {
    cin>>a[i];
  }
  for(i=0;i<n;i++)
  {
    j=j*a[i];
  }
  if(j<10e18)
  {
    cout<<j;}
  else
  {cout<<-1;}
}

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

#include<stdio.h>
int main(){
 long long n;
 scanf("%lld",&n);
 long long a[n],ans=1.i;
 for(i=0;i<n;i++){
  scanf(" %lld",&a[i]);
  ans*=a[i];
  if(ans>1000000000000000000){
    ans=-1;break;}
 }
 printf("%lld\n",ans);
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: cannot convert '__complex__ double' to 'long long int' in initialization
    5 |  long long a[n],ans=1.i;
      |                     ^~~
a.cc:6:6: error: 'i' was not declared in this scope
    6 |  for(i=0;i<n;i++){
      |      ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
	int N,A;
  	unsighed long long S,D;
  	cin >> N;
  	S = 1;
  for(int i=0;i<N;i++){
  	cin >> A;
  	S *=A;
  }
  D = S;
  for(int i=0;i<18;i++){
  	D /=10;
  }
  if(D>1){
      cout << -1<<endl;
    }else{
  		cout<<S<<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'unsighed' was not declared in this scope; did you mean 'unsigned'?
    7 |         unsighed long long S,D;
      |         ^~~~~~~~
      |         unsigned
a.cc:9:9: error: 'S' was not declared in this scope
    9 |         S = 1;
      |         ^
a.cc:14:3: error: 'D' was not declared in this scope
   14 |   D = S;
      |   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
// 任意長整数型
using Bint = mp::cpp_int;
// 仮数部が1024ビットの浮動小数点数型(TLEしたら小さくする)
using Real = mp::number<mp::cpp_dec_float<1024>>;
int main(){
  Bint A;
  cin>>A;
  Bint N=1;
  Bint B;
  int c=0
  for(int i=0;i<A;i++){
    cin>>B;
    if(c!=0 && B!=0){
      if(i==A-1){
        N=-1
        break;
      }
      else{continue;}
    }
    else if (B==0){N=0;break;}
    N=N*B;
    if(N>1000000000000000000){
      c++;
    }
  }
  
  cout<<N<<endl;
}


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

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

int main(){
  int A, N[i];
  cin >> A;
  int sum = 0;
  for(int i = 0; i < A; i++){
    cin >> N[i];
    sum *= N[i];
  }
  if(sum < 10^18){
    cout << -1 <<endl;
  }
  else{
    cout << sum <<endl;
  }
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:12: error: 'i' was not declared in this scope
    5 |   int A, N[i];
      |            ^
a.cc:9:12: error: 'N' was not declared in this scope
    9 |     cin >> N[i];
      |            ^
Language: C++

#include <iostream>
using namespace std;

int main(){
    long A;
    double B,buf;
    cin >> A >> B;
    buf = A*B;
    long ans;
    ans = buf;
    cout << ans << endl
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:24: error: expected ';' before 'return'
   11 |     cout << ans << endl
      |                        ^
      |                        ;
   12 |     return 0;
      |     ~~~~~~
Language: C++

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

unsigned keta(unsigned num){
    unsigned digit=0;
    while(num!=0){
        num /= 10;
        digit++;
    }
    return digit;
}

int main(){
  int n; cin >> n;
  unsigned long long x[n];
  for (int i = 0; i < n; i++) cin >> x[i];
  unsigned long long count = 1;
  bool xx = true;
  
  for (int i = 0; i < n; i++){
    if(keta(count)+keta(a[1])>=19){
      xx = false;
      break;
    }
    count *= x[i];
    if (count > 1000000000000000000){
      xx = false;
      break;
    }
  }
  for (int i = 0; i < n; i++)
    if (x[i] == 0) count =0;
  if(xx || count == 0) cout << count << endl;
  else cout << -1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:25: error: 'a' was not declared in this scope
   21 |     if(keta(count)+keta(a[1])>=19){
      |                         ^
Language: C++

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

ans = 1
for i in range(N):
    if A[i] == 0:
        print(0)
        exit()

for i in range(N):
    ans *= A[i]
    if ans > pow(10, 18):
        print(-1)
        exit()

print(ans)


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

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

using namespace std;


void solve2()
{
	unsigned long long ans = 1LL;
	unsigned long long temp = 1LL;
	unsigned long long max = unsigned long long (pow(10,18));
	unsigned int n = 0, i = 0;
	cin >> n;
	for (unsigned int i = 0; i < n; ++i)
	{
		cin >> temp;
		ans *= temp;
	}
	if (ans > max) cout << -1;
	else cout << ans;
	
}

int main()
{
	solve2();
	return 0;
}

Compiler output:
a.cc: In function 'void solve2()':
a.cc:16:34: error: expected primary-expression before 'unsigned'
   16 |         unsigned long long max = unsigned long long (pow(10,18));
      |                                  ^~~~~~~~