criyle/codenet-compile-errors huggingface dataset:
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();
unsigned GetDigit(long long num){
    unsigned digit = 0;
    while (num!=0)
    {
        num/=10;
        digit++;
    }
    return digit;
    
}
int main(){
    ll N,ans=1;
    cin >> N;
    vector<ll>A(N);
    for (ll i = 0; i < N; i++)
    {
        ll a;
        cin >> a;
        if(a==0){
            cout << "0" << endl;
            return 0;
        }
        A[i]=a;
    }

    for (ll i = 0; i < N; i++)
    {
        ans *= A[i];
        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 <iostream>
using namespace std;

int main(){
    int N;
    cin >> N;
    long long A[100001];
    long long P=1;
    for(int i=0; i<N; i++){
        cin >> A[i];
    }
    for(int i=0; i<N; i++){
        P=P*A;
        if(P>1000000000000000000){
            P=-1;
            break;
        }
        else if(P==0){
            break;
        }
    }

    cout << P << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:12: error: invalid operands of types 'long long int' and 'long long int [100001]' to binary 'operator*'
   13 |         P=P*A;
      |           ~^~
      |           | |
      |           | long long int [100001]
      |           long long int
Language: C++

#include<iostream>
using namespace std;
int main()
{
    int N = 2;
  	int a = 20, b = 21;
    cin >> a >> b;
    if(a * b > 10^18){cout << -1 << endl};
  	if(a * b <= 10^18){cout << a * b << endl};
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:41: error: expected ';' before '}' token
    8 |     if(a * b > 10^18){cout << -1 << endl};
      |                                         ^
      |                                         ;
a.cc:9:49: error: expected ';' before '}' token
    9 |         if(a * b <= 10^18){cout << a * b << endl};
      |                                                 ^
      |                                                 ;
Language: C++

n=int(input())
res=1
for i in range(n):
  a=int(input())
  res=res*a
if(res>1000000000000000000):
  print("-1")
else:
  print(res)

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:4:26: warning: result of '10^18' is 24; did you mean '1e18'? [-Wxor-used-as-pow]
    4 | {long long int p=1,N,A[10^18];
      |                          ^
      |                        ---
      |                        1e
a.cc:4:24: note: you can silence this warning by using a hexadecimal constant (0xa rather than 10)
    4 | {long long int p=1,N,A[10^18];
      |                        ^~
      |                        0xa
a.cc:14:3: error: expected '}' at end of input
   14 |  }
      |   ^
a.cc:4:1: note: to match this '{'
    4 | {long long int p=1,N,A[10^18];
      | ^
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 ans = 1;
    
    long max = 1000000000000000000L;
    
    for(int i = 0; i < n; i++){
      long l = sc.nextLong();
      ans = ans*l;
      if (ans > max){
        ans = -1;
        break;
    　}
    }
    
    System.out.println(ans);
  }
}

Compiler output:
Main.java:18: error: illegal character: '\u3000'
    ?}
    ^
1 error
Language: C++

#include<cstdio>
#include<cmath>
using namespace std;
typedef long long ll;
const long long INF=1e18;
ll arr[100005];
int main(){
	int n;
	cin>>n;
	for(int i=0;i<n;i++)	cin>>arr[i];
	ll ans=1;
	bool flag=false,flag2=false;
	for(int i=0;i<n;i++){
		ans*=arr[i];
		if(arr[i]==0){
			flag=true;
			break;
		}	
		if(i>0 && (ans<0||ans>INF)){
			flag2=true;
		}	
	}
	if(flag){
		puts("0");
	}	
	else if(flag2)	puts("-1");
	else cout<<ans<<endl;;
	return 0;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'cin' was not declared in this scope
    9 |         cin>>n;
      |         ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include<cmath>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:27:14: error: 'cout' was not declared in this scope
   27 |         else cout<<ans<<endl;;
      |              ^~~~
a.cc:27:14: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:27:25: error: 'endl' was not declared in this scope
   27 |         else cout<<ans<<endl;;
      |                         ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include<cmath>
  +++ |+#include <ostream>
    3 | using namespace std;
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];
        if(a[i] == 0){
            cout << "0";
            return 0;
        }
    }
    long long ans = a[0] * a[1];
    for(int i = 2; i < n;i++){

        ans += ans * a[i]
        if(ans > 1000000000000000000){
            cout << "-1";
            return ;
        }
    }
    cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:26: error: expected ';' before 'if'
   21 |         ans += ans * a[i]
      |                          ^
      |                          ;
   22 |         if(ans > 1000000000000000000){
      |         ~~
Language: C

#include<stdio.h>

int main(void)
{
    int n;
    scanf("%d",&n);
    long long int mul=1;
    while(n--)
    {
        long long int z;
        scanf("%I64d",&z);
        mul*=z;;
    }

    if(mul>1e18)
        {
            printf("%d ",-1);
            return 0;

        }
3
101 9901 999999000001
    printf("%I64d",mul);

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:21:2: error: expected ';' before numeric constant
   21 | 3
      |  ^
      |  ;
   22 | 101 9901 999999000001
      | ~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cstdlib>
#include <map>
#include <math.h>
#include <numeric>
#include <iomanip>
#include <climits>
using namespace std;
int main(){
  int n;
  cin >> n;
  long long int a=1;
  bool over=true;
  for(int i=0;i<n;i++){
    long long int tmp;
    cin >> tmp;
    long long int tmp2=a;
    a*=tmp;
    if(tmp!=0)if(tmp2>=LLONG_MAX/tmp)over=false;
    if(tmp==0)over=true;
  }
  if(over)cout << a << endl;
  else cout << -1 << endl;
}
    long long int tmp2=a;
    a*=tmp;
    if(a/tmp!=tmp2)over=false;
    //cout << tmp << " " << a << endl;
  }
  if(over)cout << a << endl;
  else cout << -1 << endl;
}

Compiler output:
a.cc:28:24: error: 'a' was not declared in this scope
   28 |     long long int tmp2=a;
      |                        ^
a.cc:29:5: error: 'a' does not name a type
   29 |     a*=tmp;
      |     ^
a.cc:30:5: error: expected unqualified-id before 'if'
   30 |     if(a/tmp!=tmp2)over=false;
      |     ^~
a.cc:32:3: error: expected declaration before '}' token
   32 |   }
      |   ^
a.cc:33:3: error: expected unqualified-id before 'if'
   33 |   if(over)cout << a << endl;
      |   ^~
a.cc:34:3: error: expected unqualified-id before 'else'
   34 |   else cout << -1 << endl;
      |   ^~~~
a.cc:35:1: error: expected declaration before '}' token
   35 | }
      | ^
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];
    }

    unsigned __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:13:22: error: expected initializer before 'S'
   13 |     unsigned __int64 S=1;
      |                      ^
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: Java

// Java program to find large factorials using BigInteger 
import java.math.BigInteger; 
import java.util.Scanner; 

public class Example 
{

	// Driver method 
	public static void main(String args[]) throws Exception 
	{ 
    	Scanner sc=new Scanner(System.in);
		int N = sc.nextInt();
        BigInteger [] a = new BigInteger[N];
        String MX = "1000000000000000000";
        for(int i=0;i<N;i++)
        {
            String str = sc.next();
            a[i]=new BigInteger(str);    
        }
        BigInteger f= a[0];
        for(int i=1;i<N;i++)
        {
            f=f.multiply(a[i]);
            if(f.compareTo(new BigInteger(MX))==1)
            {
                System.out.println("-1");
                return ;
            }
        }
		System.out.println(f); 
	} 
} 


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

#include<bits/stdc++.h>
using namespace std;
int main() {
  long long curr_num, sum;
  int n;
  bool to_continue=true;
  cin >> n;
  cin >> sum;
  for (int i = 1; i < n; i++) {
    cin >> curr_num;
    if (to_continue) {
      if (1000000000000000000/curr_num < sum) {
        to_continue = false;
        sum = -1;
      }
      else if (curr_num * sum > 1000000000000000000) {
        to_continue = False;
        sum = -1;
      }
      else {
        sum *= curr_num;
      }
    }
  }
  cout << sum;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:23: error: 'False' was not declared in this scope
   17 |         to_continue = False;
      |                       ^~~~~
Language: C

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define li long
#define ll long long
#define ull unsigned long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pli pair<li,li>
#define pll pair<ll,ll>
#define pb push_back
#define fori(i,k,n) for(int i = k;i<n; i++)
#define rfori(i,k,n) for(int i = k; i>=n; i--)
#define tc int t;cin>>t;while(t--)
#define all(v) v.begin(),v.end()
#define inf INT_MAX
#define ninf INT_MIN
#define W(x) cout<<x<<endl
#define WW(x,y) cout<<x<<' '<<y<<endl;
#define in(x) cin>>x
#define int long long
const ll mod = 998244353;
const ll mod2 = 1e9+7;
template <class T>
using oset = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;

void fastio()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
} 
template<class T>
T power(T a,T b){
    T res = (T)1;
    while(b>0){
        if(b&1)res = res*a;
        b>>=1;
        a*=a;
    }
    return res;
}
struct Node{
    int first;int second;
    Node(int x,int y){
        this->first = x;
        this->second = y;
    }
};
struct comparator{
    bool operator()(const Node &a,const Node &b){
        int lena = a.second-a.first+1;
        int lenb = b.second-b.first+1;
        if(lena == lenb)return a.first<b.first;
        else return lena>lenb;
    }
};
ll power(ll x,ll y,ll mod){
    ll res = 1;
    x%=mod;
    while(y>0){
        if(y&1)res = (res*x)%mod;
        y>>=1;
        x = (x*x)%mod;
    }
    return res;
}
const int mxn = 1e18;
signed main(){
    int n;
    cin>>n;
    vector<int> a(n);
    set<int> st;
    for(int i = 0; i<n; i++){
        cin>>a[i];
        st.insert(a[i]);
    }
    sort(all(a));
    if(st.find(0)!=st.end())return cout<<0,0;
    int ans = 1;
    for(int i = 0; i<n; i++){
        ans*=a[i];
        if(ans%mxn!=ans||ans%mxn!=0){
            ans = -1;
            break;
        }
    }
    cout<<ans<<"\n";
}

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>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;
void main() {
	long long a = 0;
	unsigned long long answer = 1;
	cin >> a;
	vector<long long> data(a);
	for (int i = 0; i < data.size(); i++) {
		cin >> data.at(i);
	}

	for (int i = 0; i < data.size(); i++) {
		answer *= data.at(i);

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


Compiler output:
a.cc:6:1: error: '::main' must return 'int'
    6 | void main() {
      | ^~~~
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 (; i < n; ++i)
	{
		cin >> temp;
		ans *= temp;
	}
	if (ans > max) cout << -1;
	else cout << ans;

}

int main()
{
	solve2();
}

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));
      |                                  ^~~~~~~~
Language: C++

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

int main() {
  long long N,B,C,D;
  C=100;
  B=1;
  D=100;
  cin >> N;
  long A[N];
  for(int i=0 ; i<N && C == 100; i++){
    cin >> A[i];
    if(A[i]==0){
      B=0;
      C=0;
    }
    if(B*A[i]<1000000000000000000 && D==100){
      B=B*A[i];
    }else if(B*A[i]<1000000000000000000 && D==100){
      B=-1
      D=0;
    }
  }
cout << B;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:11: error: expected ';' before 'D'
   20 |       B=-1
      |           ^
      |           ;
   21 |       D=0;
      |       ~
Language: C++

#include<iostream>
#include<vector>
#include<string>
#include<math.h>
#include<algorithm>
#include<cmath>
#include<iomanip>
#define rep(i,n) for(int i=0; i<(n); i++)
using namespace std;
typedef long long ll;
int main() {
	int n;
	cin >> n;
	vector<ll>a(n);
	vector<ll>b(n);
   int t=0;
	rep(i, n) {
		cin >> a[i];
       if(a[i]==0){
         t=1;
       }
	}
    rep(i,n){
      if(a[0]>1000000000000000000&&t==0){
        cout<<-1<<endl;
        return 0;
      }
	b[0] = a[0];
    int flag=0;
	for(int i=1;i<n;i++) {
		b[i] = b[i - 1] * a[i];
		if (a[i] != 0 && b[i] / a[i] != b[i - 1]) {
			flag=1;
		}
	}
    if(flag==1&&b[n-1]!=0){
    cout<<-1<<endl;
      return 0;
    }
	if (b[n - 1] > 1000000000000000000||b[n-1]<0) {
		cout << -1 << endl;
		return 0;
	}
	cout << b[n - 1] << endl;
	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:46:2: error: expected '}' at end of input
   46 | }
      |  ^
a.cc:11:12: note: to match this '{'
   11 | int main() {
      |            ^
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;

using ll = boost::multiprecision;

#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();
unsigned GetDigit(long long num){
    unsigned digit = 0;
    while (num!=0)
    {
        num/=10;
        digit++;
    }
    return digit;
    
}
int main(){
    ll N,ans=1;
    cin >> N;
    vector<ll>A(N);
    for (ll i = 0; i < N; i++)
    {
        ll a;
        cin >> a;
        if(a==0){
            cout << "0" << endl;
            return 0;
        }
        A[i]=a;
    }

    for (ll i = 0; i < N; i++)
    {
        ans *= A[i];
        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: Java

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

Compiler output:
Main.java:16: error: illegal character: '\u3000'
      ??ans = -1;
      ^
Main.java:16: error: illegal character: '\u3000'
      ??ans = -1;
       ^
Main.java:17: error: illegal character: '\u3000'
    ?}
    ^
3 errors
Language: C++

#include<bits/stdc++.h>
#define modulo 1000000000000000000
using namespace std;
int main()
{long long int n,prod=1;
 cin>>n;
 while(n--)
 {long long int k;
  cin>>k;
  prod=prod*k;}
 if(prod>modulo)
   cout<<"-1";
 else
   cout<<prod";
}
   

Compiler output:
a.cc:14:14: warning: missing terminating " character
   14 |    cout<<prod";
      |              ^
a.cc:14:14: error: missing terminating " character
   14 |    cout<<prod";
      |              ^~
a.cc: In function 'int main()':
a.cc:14:14: error: expected ';' before '}' token
   14 |    cout<<prod";
      |              ^
      |              ;
   15 | }
      | ~
Language: C++

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define sz size
#define f first
#define s second
#define pb push_back
#define er erase
#define in insert
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define modul 998244353
#define PI 3.14159265359
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,x,ans=1,a[200005];
int32_t main(){
CODE_START;
cout<<fixed;
cin>>n;
for(ll i=0;i<n;i++)
{
    cin>>a[i];
    if(a[i]==0)
        rc(0);
}
sort(a,a+n);
ans=1;
ll nr=1000000000000000000;
for(ll i=0;i<n;i++)
{
    x=a[i];
    ll val=(nr+1)/ans;
    if((nra+1)%ans!=0){
        val++;
    }
    if(x>=val){
        cout<<"-1";
        return 0;
    }
    ans=ans*x;
}
cout<<ans;
}



Compiler output:
a.cc: In function 'int32_t main()':
a.cc:39:9: error: 'nra' was not declared in this scope; did you mean 'nr'?
   39 |     if((nra+1)%ans!=0){
      |         ^~~
      |         nr
Language: C++

#include<iostream>
using namespace std;

int main() {
  int N;
  cin >> N;
  int64_t B = 10000000000000;
  int64_t A;
  auto sum = 1;
  for (int i = 0; i < N; i++) {
    cin >> A;
    A / 100000
    sum *= A;
    if (sum > B) {
      cout << -1 <<endl;
      break;
    }
  }
  if (sum <= B) {
    cout << sum * 100000 << endl;
  }
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:15: error: expected ';' before 'sum'
   12 |     A / 100000
      |               ^
      |               ;
   13 |     sum *= A;
      |     ~~~
Language: C++

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

int main(){
    int64_t n;
    cin >> n;
    vector<int64_t> a(n);
    rep(i,n) cin >> a.at(i);

    long long double ans_kari=0.0;
    // cout<<b<<endl;
    rep(i,n) ans_kari += (long long double)log10(a.at(i)); 
    cout<<ans_kari<<endl;
    if(ans_kari>18){
        cout<<"-1"<<endl;
        return 0;
    }
    int64_t ans=1;
    rep(i,n) ans *= a.at(i);
    cout<<ans<<endl;
    

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: 'long long' specified with 'double'
   13 |     long long double ans_kari=0.0;
      |          ^~~~
a.cc:15:32: error: 'long long' specified with 'double'
   15 |     rep(i,n) ans_kari += (long long double)log10(a.at(i));
      |                                ^~~~
Language: C

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

#define PI 3.141592653589793

/*double rad(double x)
{
	x* PI / 180.0;
};*/


int main()
{
	int n;
	long long int a, sum = 1;
	int flg = 0;

	scanf_s("%d", &n);

	for (int i = 0; i < n; i++)
	{
		scanf_s("%lld", &a);
		sum *= a;

	}
	if (sum > 1000000000000000000)
	{
		printf("%d", -1);
	}

	else
	{
		printf("%lld\n", sum);
	}

	return 0;
}



/*int main()
{
	double a;
	float b,sum;
	//int sum2;

	scanf("%lf%f", &a, &b);
	//a = a / 1000000000000000;
	printf("%lf\n%f\n", a,b);
	
	printf("%lf\n", (double)b*a);
	//sum = a* b;
	printf("%lld\n", floor(a*b));
	return 0;
}

*/

Compiler output:
main.c: In function 'main':
main.c:20:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
   20 |         scanf_s("%d", &n);
      |         ^~~~~~~
      |         scanf
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 ans = a[0] * a[1];
    for(int i = 2; i < n;i++){

        ans += ans * a[i]
        if(ans > 1000000000000000000){
            cout << "-1";
            return ;
        }
    }
    cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: expected ';' before 'if'
   17 |         ans += ans * a[i]
      |                          ^
      |                          ;
   18 |         if(ans > 1000000000000000000){
      |         ~~
Language: C++

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

int main() {
  long long N,B,C,D;
  long long i = 0;
  C=100;
  B=1;
  D=100;
  cin >> N;
  long A[N];
  for(int i=0 ; i<N && C == 100; i++){
    cin >> A[i];
    if(A[i]==0){
      B=0;
      C=0;
    }
    if(B*A[i]<1000000000000000000 && D==100){
      B=B*A[i];
    }else if{B*A[i]<1000000000000000000 && D==100
      B=-1
      D=0;
    }
  }
cout << B;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:13: error: expected '(' before '{' token
   20 |     }else if{B*A[i]<1000000000000000000 && D==100
      |             ^
      |             (
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;

using ll = boost::multiplecision;

#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();
unsigned GetDigit(long long num){
    unsigned digit = 0;
    while (num!=0)
    {
        num/=10;
        digit++;
    }
    return digit;
    
}
int main(){
    ll N,ans=1;
    cin >> N;
    vector<ll>A(N);
    for (ll i = 0; i < N; i++)
    {
        ll a;
        cin >> a;
        if(a==0){
            cout << "0" << endl;
            return 0;
        }
        A[i]=a;
    }

    for (ll i = 0; i < N; i++)
    {
        ans *= A[i];
        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 <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  vector<int> A(N);
  int x;
  for(int i=0;i<N;i++){
    cin>>A.at(i);
     x=*A.at(i);
  }
  cout<<x<<endl;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:8: error: invalid type argument of unary '*' (have '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'})
   10 |      x=*A.at(i);
      |        ^~~~~~~~
Language: C++

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

int main(){
  uint64_t N;
  cin >> N;
  uint64_t multi = 1;
  bool over = false;
  for( uint64_t i = 0; i < N; ++i ){
    uint64_t tmp;
    cin >> tmp;
    
    if( tmp == 0 ){
      cout << 0 << endl;
      return;
    }

    multi *= tmp;
    
    if( multi > (uint64_t)1e18 || tmp > (uint64_t)1e18){
      over = true;
    }

  }

  if(over){
    cout << -1 << endl;
  }else{
    cout << fixed << setprecision(20) << multi << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:7: error: return-statement with no value, in function returning 'int' [-fpermissive]
   15 |       return;
      |       ^~~~~~
Language: Java

import java.util.*;
 
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
      	int N = sc.nextint();
      
		// リストを作って格納
		List<Long> list = new ArrayList<Long>();
		while(sc.hasNext()) {
			list.add(sc.nextLong());
		}
 
		// resultは10桁オーバーなのでlong型
		long result = 1;
 
		// resultにlistの数字を全て掛ける
		for(Long i: list) {
			result *= i;
		}
 
		// 10の18乗を超えるなら-1を代入
		long checks = (long) Math.pow(10, 18);
		if(result > checks) {
			result = -1;
		}
 
		// 結果の出力
		System.out.println(result);
 
	}
}

Compiler output:
Main.java:6: error: cannot find symbol
      	int N = sc.nextint();
      	          ^
  symbol:   method nextint()
  location: variable sc of type Scanner
1 error
Language: C++

#include <iostream>
 
using namespace std;
 
int main()
{
  int n, tmp;
  unsigned long long total = 1;
  
  cin >> n;
  
  for (int i = 0; i < n; ++i)
  {
    cin >> tmp;
    total *= tmp;
  }
  
  if (total > 1e18)
    cout << -1;
  else
    cout << total
  
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: expected ';' before 'return'
   21 |     cout << total
      |                  ^
      |                  ;
   22 | 
   23 |     return 0;
      |     ~~~~~~
Language: Java

import java.math.*;
import java.util.*;
public class Main
{
        public static void main(String[] args)
        {
            Scanner cin = new Scanner(System.in);
            int T;
            T = cin.nextInt();
            BigInteger t = new BigInteger("1000000000000000000");
            BigInteger an = BigInteger.valueOf(1);
            for(int i = 1;i <= T;i ++)
            {
                int f;
                BigInteger m = cin.nextBigInteger();
                int s = m.compareTo(BigInteger.valueOf(0));
                if (s == 0)
                {
                    an = BigInteger.valueOf(0);
                }
                f = an.compareTo(t);
                if(s != 0 && flag <= 0)
                an = an.multiply(m);
            }
            int k = an.compareTo(t);
            if(k <= 0)
                System.out.println(ans);
            else System.out.println("-1\n");
        }
}

Compiler output:
Main.java:22: error: cannot find symbol
                if(s != 0 && flag <= 0)
                             ^
  symbol:   variable flag
  location: class Main
Main.java:27: error: cannot find symbol
                System.out.println(ans);
                                   ^
  symbol:   variable ans
  location: class Main
2 errors
Language: C++

#include <boost/multiprecision/cpp_int.hpp> 
using namespace boost::multiprecision; 
using namespace std; 
  
int128_t boost_product(long long A, long long B) 
{ 
    int128_t ans = (int128_t) A * B; 
    return ans; 
} 
  
int main() { 
    long long n;
    cin >> n;

    long long arr[n];
    long long ans=1;
    for(int i=0;i<n; i++){
      cin >> arr[i];
      ans=boost_product(ans,arr[i]);
    }
   
    if(ans>1000000000000000000){
      cout << -1 << endl;
      return 0;
    }
    cout << ans << endl;
    
    return 0; 
} 

Compiler output:
a.cc:1:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    1 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C

#include <iostream>
#include <cmath>
using namespace std;
typedef unsigned long long ll;

int dlen(ll x)
{
    int cnt=0;
    while(x){
        x/=10;
        cnt++;
    }
    return cnt;
}
int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(false);

    int n;
    cin>>n;

    ll sum=1, v[n];

    for(int i=0; i<n; i++){
        cin>>v[i];
        if(!v[i]){
            cout<<0;
            return 0;
        }
    }
    for(int i=0; i<n; i++){
        if(dlen(sum)+dlen(v[i])>20){
            cout<<-1;
            return 0;
        }
        sum*=v[i];
        if(sum>1000000000000000000){
            cout<<-1;
            return 0;
        }
    }
    cout<<sum;
    return 0;
}


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

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

int main()
{
  unsigned long long int x,mul=1;
  int n;
  cin>>n;
  unsigned  long long int a[n];
  for( int i=0;i<n;i++)
  {cin>>a[i];
    mul*=a[i];
  }
  
 x=pow(10,18);

 if(mul>x)
  {
    cout<<-1;
}else
{
cout<<mul;
}
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>
    #include <vector>
    #include <numeric>
     
    int main(void){
        unsigned long long int n;
        std::vector<unsigned long long int> a;
        std::cin >> n;
        unsigned long long int prod = 1;
        for(unsigned long long int i=0; i<n; i++)
        {
            unsigned long long int a_i;
            std::cin >> a_i;
            if(a_i == 0){
                std::cout << 0 << std::endl;
                return;
            }
            a.push_back(a_i);
        }
        for(const auto& a_i:a){
            prod *= a_i;
            if(prod > 1000000000000000000LL){
                std::cout << -1 << std::endl;
                return;
            }
        }
     
        std::cout << prod << std::endl;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:16:17: error: return-statement with no value, in function returning 'int' [-fpermissive]
   16 |                 return;
      |                 ^~~~~~
a.cc:24:17: error: return-statement with no value, in function returning 'int' [-fpermissive]
   24 |                 return;
      |                 ^~~~~~
Language: C++

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

int main(){
    ll N;
    cin>>N;
    vector<ll> A(N);
    for(int i=0; i<N; i++) cin>>A[i];

    ll sum = 1;
    bool zero = false;
    bool check = false;

    for(int i=0; i<N; i++0){
        sum *= log10(A[i]);
        if(A[i] == 0) zero = false;
        if(sum > 18){
            check = true;
        }
    }

    if(!check){
        ll ans = 1;
        for(int i=0; i<N; i++) ans *= A[i];
        cout<<ans<<endl;
    }

    else{
        if(zero) cout<<"0"<<endl;
        else cout<<"-1"<<endl;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: expected ')' before numeric constant
   15 |     for(int i=0; i<N; i++0){
      |        ~                 ^
      |                          )
a.cc:15:27: error: expected ';' before ')' token
   15 |     for(int i=0; i<N; i++0){
      |                           ^
      |                           ;
Language: C++

n = int(input())
t = input().split()

r = 1
for i in t:
    r *= int(i)
    if(r > 1000000000000000000):
        r = -1
        break
print(r)


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

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

int main()
{
	long long int A[10000];
	long long int N,i,ans;
	long long int i = 0;
	
	scanf("%lln\n", &N);
	
	// 整数の入力
	for(i = 1; i <= N ; i++)
	{
		scanf("%lld\n", &A[i]);
		ans = ans * A[i];
	}
	
	// 出力
	if(ans < 10^18){
		printf("%lln\n",&ans);
	
	}else{
		printf("-1");
	}
	
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:23: error: redeclaration of 'i' with no linkage
   10 |         long long int i = 0;
      |                       ^
main.c:9:25: note: previous declaration of 'i' with type 'long long int'
    9 |         long long int N,i,ans;
      |                         ^
Language: C++

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

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

#include<iostream>

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

using namespace std;

int pow(long long int a, long long int h) {
	rep(i, h) {
		a *= h;
	}
	return a;
}

int main(void) {

	long long int n;
	long long int ans = 1;
	long long int a[100000];

	cin >> n;
	

	rep(i, n) {
	cin >> a[i];
	ans *= a[j];
	}
	

	if (ans > pow(10, 18)) {
		cout << -1 << endl;
	}
	else {
		cout << ans << endl;
	}



	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:18: error: 'j' was not declared in this scope
   25 |         ans *= a[j];
      |                  ^
Language: C

#include <bits/stdc++.h>
#define MOD 1000000007
#define ll long long int
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL);
 
using namespace std;
 
int main()
{
	
    fastio
    ll n, x;
  __int128 ans=1, comp=1000000000000000000;
  cin>>n;
  for(int i=0; i<n; i++)
  {
    cin>>x;
    ans*=x;
    if(ans>comp)
    {
      ans=-1;
      break;
    }
  }
  ll rans=ans;
  cout<<rans;
}

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<bits/stdc++.h>
using namespace std;
const long long maxi = 1e9;

int main(){
  int n; cin >> n;
  vector<long long> v(n);
  for(int i=0; i<n; i++){
    cin >> v[i];
  }
  long long ans = 1;
  bool te = false;
  for(int i=0; i<n; i++){
    if((ans > maxi and v[i] > maxi) or (ans > maxi*maxi) or (v[i] > maxi*maxi){
      cout << "-1\n";
      te = true;
      break;
    }
  }
  if(!te) cout << ans << "\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:79: error: expected ')' before '{' token
   14 |     if((ans > maxi and v[i] > maxi) or (ans > maxi*maxi) or (v[i] > maxi*maxi){
      |       ~                                                                       ^
      |                                                                               )
a.cc:19:3: error: expected primary-expression before '}' token
   19 |   }
      |   ^
Language: C++

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

int main(){
    ll N;
    cin>>N;
    vector<ll> A(N);
    for(int i=0; i<N; i++) cin>>A[i];

    ll sum = 1;
    bool zero = false;
    bool check = false;

    for(int i=0; i<N; i++0){
        sum *= log10(A[i]);
        if(A[i] == 0) zero = false;
        if(sum > 18){
            check = true;
        }
    }

    if(!check){
        ll ans = 1;
        for(int i=0; i<N; i++) ans *= A[i];
        cout<<ans<<endl;
    }

    else{
        if(zero) cout<<0<<endl;
        else cout<<"-1"<<endl;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: expected ')' before numeric constant
   15 |     for(int i=0; i<N; i++0){
      |        ~                 ^
      |                          )
a.cc:15:27: error: expected ';' before ')' token
   15 |     for(int i=0; i<N; i++0){
      |                           ^
      |                           ;
Language: C++

n = int(input())
a = list(map(int, input().split()))
ans = 1
check = 0
for i in a:
  if i == 0 :
    check = 1

if check == 1:
  print(0)
else :
  for i in a:
    ans *= i
    if(ans > 10 ** 18):
      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.io.*;
import java.util.*;

public class Main{

    public static void main(String[] args){

        long n = Long.parseLong(read());
        String str = read();
        String[] stra = str.split(" ", 0);
        long result = 1;
        int aa;
        for(int i=0; i<n; i++){
            if((aa = Long.parseLong(stra[i]))==0){
                System.out.println("0");
                return;
            }else{
                result*=aa;
            }
            if(result > Long.parseLong(String.valueOf(Math.pow(10, 18))));
        }

    }

    public static String read(){
        String line="";
        try{
            BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
            line = reader.readLine();
        }catch(IOException e){}
        
        return line;
    }

}

Compiler output:
Main.java:14: error: incompatible types: possible lossy conversion from long to int
            if((aa = Long.parseLong(stra[i]))==0){
                                   ^
1 error
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:20:2: error: expected primary-expression before ']' token
   20 |  ]
      |  ^
a.cc:20:3: error: expected '}' at end of input
   20 |  ]
      |   ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
int N;
long long a[100001];
const long long Ma = 1000000000000000000;
long long ans = 1;
int main(){
	cin >> N;
	for(int i=0;i<N;i++){
		cin >> a[i];
		if(a[i] == 0){cout << "0" << endl; return 0;}
	}
	for(int i=0;i<N;i++){0
		if( Ma/ans< a[i]) {cout << "-1" << endl; return 0;}
		else ans*=a[i];
	}
	cout << ans << endl;
	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:31: error: expected ';' before 'if'
   15 |         for(int i=0;i<N;i++){0
      |                               ^
      |                               ;
   16 |                 if( Ma/ans< a[i]) {cout << "-1" << endl; return 0;}
      |                 ~~             
a.cc:17:17: error: 'else' without a previous 'if'
   17 |                 else ans*=a[i];
      |                 ^~~~
Language: C

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

Compiler output:
main.c: In function 'main':
main.c:16:12: error: expected expression before '>' token
   16 |     if(ans=>1000000000000000000) {
      |            ^
Language: C++

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

cin >> n;
int sum = 0;

int main() {

  // breakがなければこのループは i == 4 まで繰り返す
  for (int i = 0; i < n; i++) {
    cin >> x;
    sum *= x;
    

    if (sum > std::pow(10,18)) {
      cout << -1 << endl;
      break; 
    }

    cout << sum << endl;
  }


}


Compiler output:
a.cc:4:1: error: 'cin' does not name a type
    4 | cin >> n;
      | ^~~
a.cc: In function 'int main()':
a.cc:10:23: error: 'n' was not declared in this scope
   10 |   for (int i = 0; i < n; i++) {
      |                       ^
a.cc:11:12: error: 'x' was not declared in this scope
   11 |     cin >> x;
      |            ^
Language: Java

import java.util.Scanner;

public class sample2 {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);

		int n = scan.nextInt();
		long ans = 1;

		for(int i = 0;i < n;i++) {
			ans *= scan.nextLong();
		}

		if(ans > (long)Math.pow(10, 18)) {
			System.out.println(-1);
		}else {
			System.out.println(ans);
		}
	}
}

Compiler output:
Main.java:3: error: class sample2 is public, should be declared in a file named sample2.java
public class sample2 {
       ^
1 error
Language: C

#include <stdio.h>
#include <math.h>
 
int main(void){
    char str[10];
    int n,i;
    long double m=1;
    fgets(str,sizeof(str),stdin);
    sscanf(str,"%d",&n);
    long double aa[n];
    for(i=0;i<n;i++)scanf("%Lf",&aa[i]);
    for(i=0;i<n;i++) m *= aa[i];
    
    if(m>1000000000000000000){
        printf("-1\n");
    }else{
        printf("%-18.0Lf\n",m);
    }
    return 0;
}
#include <stdio.h>
#include <math.h>

int main(void){
    char str[10];
    int n,i;
    long double m=1;
    fgets(str,sizeof(str),stdin);
    sscanf(str,"%d",&n);
    long double aa[n];
    for(i=0;i<n;i++)scanf("%Lf",&aa[i]);
    for(i=0;i<n;i++) m *= aa[i];
    
    if(m>1000000000000000000){
        printf("-1\n");
    }else{
        printf("%-18.0Lf\n",m);
    }
    return 0;
}

Compiler output:
main.c:24:5: error: redefinition of 'main'
   24 | int main(void){
      |     ^~~~
main.c:4:5: note: previous definition of 'main' with type 'int(void)'
    4 | int main(void){
      |     ^~~~
Language: C

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

using namespace std;

void calc(void);

long long res = 1;

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

void calc(void){
	int i;
	int N;
	long long A;
	cin >> N;
	for(i = 0;i < N;i++){
		cin >> A;
		if(A == 0){
            res = 0;
			break;
		}
		res = res * A;
		if(res > 1000000000000000000){
            res = -1;
			break;
		}
	}
	cout << res;
}

Compiler output:
main.c:2:10: fatal error: iostream: No such file or directory
    2 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

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

using namespace std;

int main()
{
  long long N;
  bool breakFlag = false;
  bool zeroFlag = false;
  long double res = 1;
  long long res;
  cin >> N;
  vector<long long> A(N, 0);
  for (long long i = 0; i < N; i++)
  {
    cin >> A.at(i);
    if (A[i] == 0)
    {
      zeroFlag = true;
    }
  }
  for (long long i = 0; i < N; i++)
  {
    res *= A[i];
    if (res > abs(1000000000000000000))
    {
      breakFlag = true;
      break;
    }
  }
  if (breakFlag && !zeroFlag)
  {
    cout << -1 << endl;
  }
  else if (zeroFlag)
  {
    cout << 0 << endl;
  }
  else
  {
    ans = res;
    cout << ans << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:13: error: conflicting declaration 'long long int res'
   13 |   long long res;
      |             ^~~
a.cc:12:15: note: previous declaration as 'long double res'
   12 |   long double res = 1;
      |               ^~~
a.cc:43:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   43 |     ans = res;
      |     ^~~
      |     abs
Language: C++

#include <iostream>

int main(int argc, char** argv)
{
	long long N, A, ans = 1;
	std::cin >> N;
	for (int i = 0; i < N; i++)
	{
		std::cin >> A;
		if (A == 0)
		{
			ans = 0;
		}
		if (ans > 0)
		{
			if (log10(ans) + log10(A) > 18)
			{
				ans = -1;
			}
			else
			{
				ans *= A;
				if (ans > 1000000000000000000)
				{
					ans = -1;
				}
			}
		}
	}
	std::cout << ans << std::endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:16:29: error: 'log10' was not declared in this scope
   16 |                         if (log10(ans) + log10(A) > 18)
      |                             ^~~~~
Language: C++

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

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

using namespace std;

int pow(long long int a, long long int h) {
	rep(i, h) {
		a *= h;
	}
	return a;
}

int main(void) {

	long long int n;
	long longint ans = 1;
	long long int a[100000];

	cin >> n;
	

	rep(i, n) {
	cin >> a[i];
	}
	rep(j, n) {
		ans *= a[j];
	}

	if (ans > pow(10, 18)) {
		cout << -1 << endl;
	}
	else {
		cout << ans << endl;
	}



	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:22: error: expected initializer before 'ans'
   19 |         long longint ans = 1;
      |                      ^~~
a.cc:29:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   29 |                 ans *= a[j];
      |                 ^~~
      |                 abs
a.cc:32:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   32 |         if (ans > pow(10, 18)) {
      |             ^~~
      |             abs