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

#include <bits/stdc++.h> //全てのヘッダファイルをインクルード
 
//ループ
#define rep(i, n) for(int i = 0; i < (n); i++) //普通のループ
#define repr(i, n) for(int i = n; i >= 0; i--) //逆ループ
 
//型名省略
typedef long long ll;
//値
static const ll MX = 100005;
static const ll MX_ll = 1e18;
const double PI = acos(-1); //π
 
using namespace std;
 
//ソート
#define SIZE_OF_ARRAY(array) (sizeof(array)/sizeof(array[0]))
 
//#include "./lib/generic/search.h"
 
//ポップカウントの計算
int pcnt(int x){ 
    return __builtin_popcount(x);  //2進数の1の数を数えす
}
 
//再帰的にf(n)を求める
int f(int x){
    if(x==0) return 0;
    return f(x%pcnt(x))+1; //1度割ることができたら1回操作が増えるので+1している
}
 
int main(){
    ll n;
    cin >> n;
    vector<ll> a(n);
    ll ans=1, chg=0;
    rep(i, n){
        cin >> a[i];
        if(a[i]=<MX_ll/ans){
            ans *= a[i];
        }else{
            chg = 1;
        }
        if(a[i]==0){
            cout << "0" << endl;
            return 0;
        }
    }
    if(chg==0) cout << ans << endl;
    else cout << "-1" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:17: error: expected primary-expression before '<' token
   39 |         if(a[i]=<MX_ll/ans){
      |                 ^
Language: C++

#include <bits/stdc++.h> //全てのヘッダファイルをインクルード

//ループ
#define rep(i, n) for(int i = 0; i < (n); i++) //普通のループ
#define repr(i, n) for(int i = n; i >= 0; i--) //逆ループ

//型名省略
typedef long long ll;
//値
static const ll MX = 100005;
static const ll MX_ll = 1e18;
const double PI = acos(-1); //π

using namespace std;

//ソート
#define SIZE_OF_ARRAY(array) (sizeof(array)/sizeof(array[0]))

//#include "./lib/generic/search.h"

//ポップカウントの計算
int pcnt(int x){ 
    return __builtin_popcount(x);  //2進数の1の数を数えす
}

//再帰的にf(n)を求める
int f(int x){
    if(x==0) return 0;
    return f(x%pcnt(x))+1; //1度割ることができたら1回操作が増えるので+1している
}

int main(){
    ll N;
     cin >> N;
     ll tmp, ans=1;
     bool ng=false;
 
     rep(i, N){
         cin >> tmp;
         if(tmp==0){
             cout << "0" << endl;
             return 0;
         }
 
         if(tmp<=MX/ans){
             ans*=tmp;
         }else{
             ng=true;
         }
     }
 
    if(ng) cout << -1 << endl;
    else cout << ans << endl;
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:54:14: error: expected '}' at end of input
   54 |     return 0;
      |              ^
a.cc:32:11: note: to match this '{'
   32 | int main(){
      |           ^
Language: C++

#define _USE_MATH_DEFINES

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cmath>
using namespace std;

typedef pair<int, int> pii;
typedef long long ll;


const int BIG_NUM = 1e8;
const ll INF = 1000000000000000000;

int main() {

	int n;
	cin >> n;

	vector<ll> a(n);

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

	std::sort(a.begin(), a.end());

	if (a[0] == 0) {
		cout << 0 << endl;
		return 0;
	}

	ll ans = 1;

	ll max = INF;


	for (int i = 0; i < n; i++) {
		if (a[i] > max) {
			cout << -1 << endl;
			return 0;
		}

		max = INF / a[i];
	
		ans *= a[i];

		if (ans > INF) {
			cout << -1 << endl;
			return 0;
		}
	}

	cout << ans << endl;

	

}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:14: error: 'sort' is not a member of 'std'; did you mean 'sqrt'?
   31 |         std::sort(a.begin(), a.end());
      |              ^~~~
      |              sqrt
Language: C++

#define _USE_MATH_DEFINES

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cmath>
using namespace std;

typedef pair<int, int> pii;
typedef long long ll;


const int BIG_NUM = 1e8;
const ll INF = 1000000000000000000;

int main() {

	int n;
	cin >> n;

	vector<ll> a(n);

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

	sort(a.begin(), a.end());

	if (a[0] == 0) {
		cout << 0 << endl;
		return 0;
	}

	ll ans = 1;

	ll max = INF;


	for (int i = 0; i < n; i++) {
		if (a[i] > max) {
			cout << -1 << endl;
			return 0;
		}

		max = INF / a[i];
	
		ans *= a[i];

		if (ans > INF) {
			cout << -1 << endl;
			return 0;
		}
	}

	cout << ans << endl;

	

}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   31 |         sort(a.begin(), a.end());
      |         ^~~~
      |         sqrt
Language: C++

#define _USE_MATH_DEFINES

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cmath>
using namespace std;

typedef pair<int, int> pii;
typedef long long ll;


const int BIG_NUM = 1e8;
const ll INF = 1000000000000000000;

int main() {

	int n;
	cin >> n;

	vector<ll> a(n);

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

	sort(a.begin(), a.end());

	if (a[0] == 0) {
		cout << 0 << endl;
		return 0;
	}

	ll ans = 1;

	ll max = INF;


	for (int i = 0; i < n; i++) {
		if (a[i] > max) {
			cout << -1 << endl;
			return 0;
		}

		max = 1e18 / a[i];
		ans *= a[i];

		if (ans > INF) {
			cout << -1 << endl;
			return 0;
		}
	}

	cout << ans << endl;

	

}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   31 |         sort(a.begin(), a.end());
      |         ^~~~
      |         sqrt
Language: C++

#include <bits/stdc++.h>

#define ed cout << "\n";
#define speed                         \
    ios_base::sync_with_stdio(false); \
    cin.tie(NULL);                    \
    cout.tie(NULL);
#define ll long long
#define ffor(i, a, b) for (ll i = (ll)(a); i < (ll)(b); ++i)
#define rep(i, n) ffor(i, 0, n)
#define All(obj) (obj).begin(), (obj).end()
#define INF ((ll)1e9 + 7)
#define c(a) cout << a << "\n";
using namespace std;
const int N = 100005;


int main()
{
    speed;
    cout << fixed << setprecision(6);
    /*start*/
    int n;
    cin >> n;
    vector<ll> a(n);
    rep(i, n) cin >> a[i];
    if(a.contains(0)){
        c(0);
        return 0;
    }
    ll prod = 1;
    for (int i = 0; i < n;i++){
        if (a[i] <= 1000000000000000000/prod){
            prod *= a[i];
        }
        else{
            c(-1);
            return 0;
        }
    }
    c(prod);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:10: error: 'class std::vector<long long int>' has no member named 'contains'
   27 |     if(a.contains(0)){
      |          ^~~~~~~~
Language: C++

#include <bits/stdc++.h>

#define ed cout << "\n";
#define speed                         \
    ios_base::sync_with_stdio(false); \
    cin.tie(NULL);                    \
    cout.tie(NULL);
#define ll long long
#define ffor(i, a, b) for (ll i = (ll)(a); i < (ll)(b); ++i)
#define rep(i, n) ffor(i, 0, n)
#define All(obj) (obj).begin(), (obj).end()
#define INF ((ll)1e9 + 7)
#define c(a) cout << a << "\n";
using namespace std;
const int N = 100005;


int main()
{
    speed;
    cout << fixed << setprecision(6);
    /*start*/
    int n;
    cin >> n;
    vector<ll> a(n);
    rep(i, n) cin >> a[i];
    if(a.contain(0)){
        c(0);
        return 0;
    }
    ll prod = 1;
    for (int i = 0; i < n;i++){
        if (a[i] <= 1000000000000000000/prod){
            prod *= a[i];
        }
        else{
            c(-1);
            return 0;
        }
    }
    c(prod);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:10: error: 'class std::vector<long long int>' has no member named 'contain'
   27 |     if(a.contain(0)){
      |          ^~~~~~~
Language: C++

/** author: __nishad__ **/
#include<bits/stdc++.h>
using namespace std;


typedef long long ll ;
typedef vector<ll> vll ;

#define IOS ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define all(v) (v).begin(),(v).end()
#define precision(k) cout<<setprecision(k)<<fixed;
#define loop(i,a,b) for(ll i=(a);i<=(b);++i)
#define minv(v) *min_element(all(v))
#define maxv(v) *max_element(all(v))
#define getpos(v,x) (lower_bound(v.begin(),v.end(),x)-v.begin())
#define unq(v) sort(all(v)),(v).erase(unique((v).begin(),(v).end()),(v).end())
#define pb push_back
#define mp make_pair
#define pi 3.14159265358979323
#define endl "\n"

int main()
{
    IOS;

    int n;

    cin>>n;
    unsigned ll arr[n], res=1;

    loop(i, 1, n){
        cin>>arr[i];
        res = res * arr[i];
    }

    if(res <= 1e18)
        cout<<res;
    else
        cout<<"-1";


}





























Compiler output:
a.cc: In function 'int main()':
a.cc:29:17: error: expected initializer before 'arr'
   29 |     unsigned ll arr[n], res=1;
      |                 ^~~
a.cc:32:14: error: 'arr' was not declared in this scope
   32 |         cin>>arr[i];
      |              ^~~
a.cc:33:9: error: 'res' was not declared in this scope
   33 |         res = res * arr[i];
      |         ^~~
a.cc:36:8: error: 'res' was not declared in this scope
   36 |     if(res <= 1e18)
      |        ^~~
Language: C

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

#print(a)

ans = int(a[0])
for i in range(1,N):
    ans = ans * int(a[i])

if ans > 10**18:
    print(-1)
else:
    print(ans)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | N = int(input())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'N' [-Wimplicit-int]
main.c:1:5: error: expected expression before 'int'
    1 | N = int(input())
      |     ^~~
main.c:4:2: error: invalid preprocessing directive #print
    4 | #print(a)
      |  ^~~~~
Language: C++

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


int main() {
  int N ; 
  cin >> N ; 
  int64_t A ; 
  int64_t B = 1 ; 
  
  for(int i = 0  ; i < N ; i++){
    cin >> A ; 
    B = B*A ; 
    A=0 ; 
    

  }
  
      if( B > 1000000000000000000){
      cout << -1 << endl ;
      return 0 ; 
    }
  else {
    
      cout << (int64_t)B << endl ; 
     return 0 ; 
  }
  

}


Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | x#include<bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'x' does not name a type
    1 | x#include<bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> N ;
      |   ^~~
a.cc:8:3: error: 'int64_t' was not declared in this scope
    8 |   int64_t A ;
      |   ^~~~~~~
a.cc:1:1: note: 'int64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | x#include<bits/stdc++.h>
a.cc:9:10: error: expected ';' before 'B'
    9 |   int64_t B = 1 ;
      |          ^~
      |          ;
a.cc:12:12: error: 'A' was not declared in this scope
   12 |     cin >> A ;
      |            ^
a.cc:13:5: error: 'B' was not declared in this scope
   13 |     B = B*A ;
      |     ^
a.cc:19:11: error: 'B' was not declared in this scope
   19 |       if( B > 1000000000000000000){
      |           ^
a.cc:20:7: error: 'cout' was not declared in this scope
   20 |       cout << -1 << endl ;
      |       ^~~~
a.cc:20:21: error: 'endl' was not declared in this scope
   20 |       cout << -1 << endl ;
      |                     ^~~~
a.cc:25:7: error: 'cout' was not declared in this scope
   25 |       cout << (int64_t)B << endl ;
      |       ^~~~
Language: C++

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


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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: 'N' was not declared in this scope
    6 |   cin >> N ;
      |          ^
a.cc:10:7: error: 'i' was not declared in this scope
   10 |   for(i = 1  ; i <= N ; i++){
      |       ^
Language: C++

/**
 * Frank Stein
 **/
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ll;
#define MAX 1000000000000000000
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  ll a, c = 1;
  while (cin >> a) {
    else c *= a;
  	if (a > MAX || c > MAX) {
    	cout << -1 << endl;
    	return 0;
    }
  }
  
  cout << c << endl;
  return 0;
}




















Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: 'else' without a previous 'if'
   14 |     else c *= a;
      |     ^~~~
Language: C++

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

int main(){
  unsigned long N,X,ans;
  int flug=0;
  cin>>N>>ans;  
  for(int i=0;i<N-1;i++){
    cin>>X;
    ans*=X;   
    if(ans<0||ans > 1000000000000000000) {
      flug =1;
      break;
    }
  }
    if(flug==1) cout << "-1";
      else  cout << ans<<endl; 

  return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin>>N>>ans;
      |   ^~~
a.cc:16:17: error: 'cout' was not declared in this scope
   16 |     if(flug==1) cout << "-1";
      |                 ^~~~
a.cc:17:13: error: 'cout' was not declared in this scope
   17 |       else  cout << ans<<endl;
      |             ^~~~
a.cc:17:26: error: 'endl' was not declared in this scope
   17 |       else  cout << ans<<endl;
      |                          ^~~~
Language: C++

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

int main(){
  long N,X,ans;
  ing flug=0;
  cin>>N>>ans;  
  for(int i=0;i<N-1;i++){
    cin>>X;
    ans*=X;   
    if(ans > 1000000000000000000) flug =1;
  }
    if(flug==1) cout << "-1";
      else  cout << ans<<endl; 

 
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'ing' was not declared in this scope; did you mean 'int'?
    6 |   ing flug=0;
      |   ^~~
      |   int
a.cc:11:35: error: 'flug' was not declared in this scope
   11 |     if(ans > 1000000000000000000) flug =1;
      |                                   ^~~~
a.cc:13:8: error: 'flug' was not declared in this scope
   13 |     if(flug==1) cout << "-1";
      |        ^~~~
Language: C++

#include <stdio.h>
long long a [100010];
int main (){
int n;
scanf("%d",&n);
for(int i=0;i<n;i++) scanf("%lld",&a[i]);
int zero =0;
9
for(int i=0;i<n;i++)if(a[i]==0) zero ++;
if(zero >0){
// a[i] contains 0
printf("0\n");
return 0;
}
long long prod =1;
for(int i=0;i<n;i++){
if(a[i ] <=1000000000000000000/ prod ){
// This condition is equivalent to prod*a[i] <=10ˆ18
prod *=a[i];
}else{
printf("-1\n");
return 0;
}
}
printf("%lld\n",prod );
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:2: error: expected ';' before 'for'
    8 | 9
      |  ^
      |  ;
    9 | for(int i=0;i<n;i++)if(a[i]==0) zero ++;
      | ~~~
a.cc:9:13: error: 'i' was not declared in this scope
    9 | for(int i=0;i<n;i++)if(a[i]==0) zero ++;
      |             ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
 
  long long n;
 unsigned long long res=1,k=(unsigned long long)(1e18);
  cin>>n;
  vector<long long> a(n);
 
  for(long long i=0;i<n;i++){
    cin>>a[i];
         
}
            for(int i=0;i<n;i++){       res=res*a[i];
                                 if(ans==0){cout<<ans;
                                           return 0;}
                                 k=k/res;
                               
                                 if(i+1<n&&a[i+1]>k){
                                   cout<<"-1";
                                 return 0;} k=(unsigned long long)(1e18);}
           
           cout<<res;}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:37: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |                                  if(ans==0){cout<<ans;
      |                                     ^~~
      |                                     abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
 
  long long n;
 unsigned long long res=1,k=(unsigned long long)(1e18);
  cin>>n;
  vector<long long> a(n);
 
  for(long long i=0;i<n;i++){
    cin>>a[i];
         
}
            for(int i=0;i<n;i++){       res=res*a[i];
                                 k=k/ans;
                                 k=(unsigned long long)(1e18);
                                 if(i+1<n&&a[i+1]>k){
                                   cout<<"-1";
                                 return 0;}}
           
           cout<<res;}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:38: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |                                  k=k/ans;
      |                                      ^~~
      |                                      abs
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:16:25: error: return-statement with no value, in function returning 'int' [-fpermissive]
   16 |                         return;}}
      |                         ^~~~~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:25: error: return-statement with no value, in function returning 'int' [-fpermissive]
   15 |                         return ;}}
      |                         ^~~~~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: expected ']' before '}' token
   11 |     cin>>a[i};
      |             ^
      |             ]
a.cc:11:13: error: expected ';' before '}' token
   11 |     cin>>a[i};
      |             ^
      |             ;
a.cc: At global scope:
a.cc:14:13: error: expected unqualified-id before 'for'
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |             ^~~
a.cc:14:25: error: 'i' does not name a type
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |                         ^
a.cc:14:29: error: 'i' does not name a type
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |                             ^
a.cc:18:12: error: 'cout' does not name a type
   18 |            cout<<res;}
      |            ^~~~
a.cc:18:22: error: expected declaration before '}' token
   18 |            cout<<res;}
      |                      ^
Language: C++

#inclue<bits/stdc++.h>
using namespace std;
 
int main(){
 
  long long n,res=1;
  cin>>n;
  vector<long long> a(n);
 
  for(int i=0;i<n;i++){
    cin>>a[i];
         
}
            for(int i=0;i<n;i++){       res=res*a[i];
           if(res>1e18){cout<<"-1";
                        return 0;}}
           
           cout<<res;}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inclue; did you mean #include?
    1 | #inclue<bits/stdc++.h>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin>>n;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #inclue<bits/stdc++.h>
a.cc:8:3: error: 'vector' was not declared in this scope
    8 |   vector<long long> a(n);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | #inclue<bits/stdc++.h>
a.cc:8:10: error: expected primary-expression before 'long'
    8 |   vector<long long> a(n);
      |          ^~~~
a.cc:11:10: error: 'a' was not declared in this scope
   11 |     cin>>a[i];
      |          ^
a.cc:14:49: error: 'a' was not declared in this scope
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |                                                 ^
a.cc:15:25: error: 'cout' was not declared in this scope
   15 |            if(res>1e18){cout<<"-1";
      |                         ^~~~
a.cc:15:25: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:18:12: error: 'cout' was not declared in this scope
   18 |            cout<<res;}
      |            ^~~~
a.cc:18:12: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

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

int main(){

  long long n,res=1;
  cin>>n;
  vector<long long> a(n);

  for(int i=0;i<n;i++){
    cin>>a[i};
         
}
            for(int i=0;i<n;i++){       res=res*a[i];
           if(res>1e18){cout<<"-1";
                        return 0;}}
           
           cout<<res;}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inclue; did you mean #include?
    1 | #inclue<bits/stdc++.h>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin>>n;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #inclue<bits/stdc++.h>
a.cc:8:3: error: 'vector' was not declared in this scope
    8 |   vector<long long> a(n);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | #inclue<bits/stdc++.h>
a.cc:8:10: error: expected primary-expression before 'long'
    8 |   vector<long long> a(n);
      |          ^~~~
a.cc:11:10: error: 'a' was not declared in this scope
   11 |     cin>>a[i};
      |          ^
a.cc:11:13: error: expected ']' before '}' token
   11 |     cin>>a[i};
      |             ^
      |             ]
a.cc: At global scope:
a.cc:14:13: error: expected unqualified-id before 'for'
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |             ^~~
a.cc:14:25: error: 'i' does not name a type
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |                         ^
a.cc:14:29: error: 'i' does not name a type
   14 |             for(int i=0;i<n;i++){       res=res*a[i];
      |                             ^
a.cc:18:12: error: 'cout' does not name a type
   18 |            cout<<res;}
      |            ^~~~
a.cc:18:22: error: expected declaration before '}' token
   18 |            cout<<res;}
      |                      ^
Language: C

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

int main(){
    int n;
    cin>>n;
    ll a[n];
    ll ans=1;
    int zero=0;
    rep(i,n){
        cin>>a[i];
        if(a[i]==0) zero++;
    }
    if(zero>0){
        cout<<0<<endl;
        return 0;
    }
    rep(i,n){
        if(a[i]<1000000000000000000/ans){
            ans = ans*a[i];
        }else{
            cout<<-1<<endl;
            return 0;
        }
    }
    cout<<ans<<endl;
    return 0;
}

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: error: invalid operands of types 'long long unsigned int' and 'long long int [n]' to binary 'operator*'
   16 |         p=p*a;
      |           ~^~
      |           | |
      |           | long long int [n]
      |           long long unsigned int
Language: C++

def main():
    N=int(input())
    
    Array=list(map(int, input().split(' ')[:N]))
    if 0 in Array:
        print(0)
        return
    mul=1
    for i in Array:
        mul*=i
        if mul > 1000000000000000000:
            print(-1)
            return
    
    print(mul)
main()

Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def main():
      | ^~~
Language: C++

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

int main(){
  int N;
  cin >> N;
  long long a;
  long long ans = 1;
  for (int i = 0; i < N; i++) {
    cin >> a;
    if (a == 0) {
      cout << 0 << endl;
      break;
    }
    if (log10(ans)+log10(a)>18 || ans > 1000000000000000000) {
      cout << -1 << endl;
      break;
    }
    if (i < N-1)
      ans *= a
      continue;
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:15: error: expected ';' before 'continue'
   20 |       ans *= a
      |               ^
      |               ;
   21 |       continue;
      |       ~~~~~~~~
Language: C++

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

long long main(){
  long long N;
  cin >> N;
  long long a;
  long long ans = 1;
  for (long long i = 0; i < N; i++) {
    cin >> a;
    ans *= a;
    if (ans > 1000000000000000000) {
      cout << -1 << endl;
      break;
    }
    else if (ans < 0) {
      cout << -1 << endl;
      break;
    }
    else if (ans <= 1000000000000000000  && i < N-1)
      continue;
    else if (ans >= 0 && i < N-1)
      continue;
    else
      cout << ans << endl;
  }
}


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

#define int long long

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin >> N;
      |   ^~~
a.cc:13:5: error: 'cout' was not declared in this scope
   13 |     cout << ans << endl;
      |     ^~~~
a.cc:13:20: error: 'endl' was not declared in this scope
   13 |     cout << ans << endl;
      |                    ^~~~
a.cc:15:5: error: 'cout' was not declared in this scope
   15 |     cout << -1 << endl;
      |     ^~~~
a.cc:15:19: error: 'endl' was not declared in this scope
   15 |     cout << -1 << endl;
      |                   ^~~~
Language: C++

#define int long long

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin >> N;
      |   ^~~
a.cc:10:13: error: expected ';' before '}' token
   10 |     ans *= a
      |             ^
      |             ;
   11 |   }
      |   ~          
a.cc:13:5: error: 'cout' was not declared in this scope
   13 |     cout << ans << endl;
      |     ^~~~
a.cc:13:20: error: 'endl' was not declared in this scope
   13 |     cout << ans << endl;
      |                    ^~~~
a.cc:15:5: error: 'cout' was not declared in this scope
   15 |     cout << -1 << endl;
      |     ^~~~
a.cc:15:19: error: 'endl' was not declared in this scope
   15 |     cout << -1 << endl;
      |                   ^~~~
Language: C

#include<stdio.h>
int main (void){
    int N,i,result;
    int A[100000];
    scanf("%d\n",&N)
    for(i=0;i<N;i++){
        scanf("%d\n",&A[i]);
        result = result * A[i];
    }
    if(result>=1000000000000000000){
        printf("-1");
    }else{
        printf("%d\n",result);
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:21: error: expected ';' before 'for'
    5 |     scanf("%d\n",&N)
      |                     ^
      |                     ;
    6 |     for(i=0;i<N;i++){
      |     ~~~
Language: C

#include<stdio.h>
int main()
{
  int n,a,s=1;
  scanf("%d",&n);
  for(i=0;i<n;++i)
  {
    scanf("%d",&a);
    if(a==0)
    {
      f=1;
      break;
    }
    else
      s*=a;
    if(s>1000000000000000000)
    {
      f=2;
      break;
    }
  }
  if(f==1)
    printf("\0");
  else if(f==2)
    printf("-1");
  else
    printf("%d",s);
  return 0;
}
}

Compiler output:
main.c: In function 'main':
main.c:6:7: error: 'i' undeclared (first use in this function)
    6 |   for(i=0;i<n;++i)
      |       ^
main.c:6:7: note: each undeclared identifier is reported only once for each function it appears in
main.c:11:7: error: 'f' undeclared (first use in this function)
   11 |       f=1;
      |       ^
main.c: At top level:
main.c:30:1: error: expected identifier or '(' before '}' token
   30 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main()
{
  int n; cin >> n;
  long long int total = 1;
  
  while(n--)
  {
    long long int num; cin >> num;
    total *= num;
    if((total < 0) or (total > 1000000000000000000LL))
    {
      cout << -1; return;
    }
  }
  if(total > 1000000000000000000LL) cout << -1;
  else cout << total;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:19: error: return-statement with no value, in function returning 'int' [-fpermissive]
   16 |       cout << -1; return;
      |                   ^~~~~~
Language: Java

import java.util.Scanner;
public class Main
{
  public static void main(String[] args)
  {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    long[] b = new long[a];
    long M = (long)Math.pow(10,8);
    int result = 1;
    for(int i = 0; i < a; i++)
    {
      b[i] = sc.nextInt();
      if(b[i]  == 0)
      {
        System.out.println(0);
      	break;
      }
    }
    for(int i = 0; i < a; i++)
    {
      if(M/result < a[i])
      {
        System.out.println(-1);
      }
      else
      {
        result *= b[i];
      }
    }
    System.out.println(result);
  }
}

Compiler output:
Main.java:22: error: array required, but int found
      if(M/result < a[i])
                     ^
1 error
Language: Java

import java.util.Scanner;
public class Main
{
  public static void main(String[] args)
  {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    long[] b = new long[a];
    long result = 1l;
    
    for(int i = 0; i < a; i++)
    {
      b[i] = sc.nextLong();
      if(a[i] == 0)
        System.out.println(0);
    } 
    
    for(int i = 0; i < a; i++)
    {
       result = result * b[i];
      if(Math.pow(10,18) < result)
      {
        result = -1;
        break;
      }
    }
   
    System.out.println(result);
  }
}


Compiler output:
Main.java:14: error: array required, but int found
      if(a[i] == 0)
          ^
1 error
Language: Java

import java.util.Scanner;
public class Main
{
  public static void main(String[] args)
  {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextLong();
    long[] b = new long[a];
    long result = 1;
    
    for(int i = 0; i < a; i++)
    {
      b[i] = sc.nextLong();
      result = result * b[i];
      if(Math.pow(10,18) < result)
      {
        result = -1;
        break;
      }
    }
    System.out.println(result);
  }
}


Compiler output:
Main.java:7: error: incompatible types: possible lossy conversion from long to int
    int a = sc.nextLong();
                       ^
1 error
Language: Java

import java.util.Scanner;
public class Main
{
  public static void main(String[] args)
  {
    Scanner sc = new Scanner(System.in);
    long a = sc.nextLong();
    long[] b = new long[a];
    long result = 1;
    
    for(int i = 0; i < a; i++)
    {
      b[i] = sc.nextLong();
      result = result * b[i];
      if(Math.pow(10,18) < result)
      {
        result = -1;
        break;
      }
    }
    System.out.println(result);
  }
}


Compiler output:
Main.java:8: error: incompatible types: possible lossy conversion from long to int
    long[] b = new long[a];
                        ^
1 error
Language: C++

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

int main() {
  int64_t N, Q, ans;
  cin >> N;
  Q=1000000000000000000;
  ans=1;
  vector<int64_t> A(N);
  for (int64_t i=0; i<N; i++) {
    cin >> A.at(i);
  }
  sort(A.begin(),A.end());
  if (A.at(0)==0) {
    cout << 0 << endl;
  }
  else {
    int64_t j=0;
    while (j<N) {
      ans=ans*A.at(j);
      i++;
    }
    if (ans<=Q) {
      cout << ans << endl;
    }
    else {
      cout << -1 << endl;
    }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:7: error: 'i' was not declared in this scope
   24 |       i++;
      |       ^
Language: C++

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

int main() {
  int64_t N, Q, ans;
  cin >> N;
  Q=1000000000000000000
  ans=1
  vector<int64_t> A(N);
  for (int64_t i=0; i<N; i++) {
    cin >> A.at(i);
  }
  sort(A.begin(),A.end());
  if (A.at(0)==0) {
    cout << 0 << endl;
  }
  else {
    int64_t j=0;
    while (j<N) {
      ans=ans*A.at(j);
      i++;
    }
    if (ans<=Q) {
      cout << ans << endl;
    }
    else {
      cout << -1 << endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:24: error: expected ';' before 'ans'
   10 |   Q=1000000000000000000
      |                        ^
      |                        ;
   11 |   ans=1
      |   ~~~                   
a.cc:14:12: error: 'A' was not declared in this scope
   14 |     cin >> A.at(i);
      |            ^
a.cc:16:8: error: 'A' was not declared in this scope
   16 |   sort(A.begin(),A.end());
      |        ^
a.cc:24:7: error: 'i' was not declared in this scope
   24 |       i++;
      |       ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
int main()
{
  int n;
  cin >> n;
  
  long long p = 1, f = 0;
  long long *ptr = new long long[n];
  
  double x = 0.0;
  
  for(int i = 0; i < n; i++)
  {
    cin>>ptr[i];
    x += (double)log10(p[i]);
  }
  for(int i = 0; i < n; i++)
  {
    if(ptr[i] == 0)
    {
      f = 2;
      cout<<"0\n";
      break;
    }
  } 
  
  if(f == 0 && x > 18)
  {
    f = 1;
    cout<<"-1\n";
  }
  
  if(f == 0)
  {
    for(int i = 0; i < n; i++)
    { 
      p = p * x;
    }
    cout<<p<<"\n";
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: invalid types 'long long int[int]' for array subscript
   17 |     x += (double)log10(p[i]);
      |                         ^
Language: C++

n = int(input())

arr = list(map(int,input().split()))

ans = 1
lim = int(1e18)

if 0 in arr:
    print(0)

else:
    for x in arr:
        ans *= x
        if ans > lim:
            ans = -1
            break 

    print(ans)

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() {
  int N;
  cin >> N;
  vector<long long> A(N);
  for(int i = 0; i < N; ++i) cin >> A[i];
  sort(A.begin(), A.end());
  __int128 t = A[0];
  for(int i = 1; i < N; i++){
    if(__int128)1e18) < t*A[i]){
      cout << -1 << endl;
      return 0;
    }
    t *= A[i];
  }
  long long ans = t;
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expected unqualified-id before ')' token
   12 |     if(__int128)1e18) < t*A[i]){
      |                ^
a.cc:12:21: error: expected ';' before ')' token
   12 |     if(__int128)1e18) < t*A[i]){
      |                     ^
      |                     ;
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];
  sort(A.begin(), A.end());
  __int128 t = A[0];
  for(int i = 1; i < N; i++){
    if(__int128)1e18 < t*A[i]){
      cout << -1 << endl;
      return 0;
    }
    t *= A[i];
  }
  long long ans = t;
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expected unqualified-id before ')' token
   12 |     if(__int128)1e18 < t*A[i]){
      |                ^
a.cc:12:30: error: expected ';' before ')' token
   12 |     if(__int128)1e18 < t*A[i]){
      |                              ^
      |                              ;
Language: C++

#include <iostream>

using namespace std;

int main(){
  int n;
  bool valueExe = false;
  cin>>n;
  long long int res = 1, maxVal = 1000000000000000000;
  for(int i = 0; i < n; i++){
   	 long long int num;
     cin>>num;
     if(num == 0){
       cout<<0;
       return 0;
     }
     if(res > maxVal/num){
      	valueExe = true;
     }
    if(valueExe == false){
      res *= num;
    }
  }
  if(valueExe == True){
   cout<<-1; 
  }
  else{
  	cout<<res;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:18: error: 'True' was not declared in this scope
   24 |   if(valueExe == True){
      |                  ^~~~
Language: Java

import java.util.*;
import java.io.*;
public class Main{
   public static void main(String[] main) throws Exception{
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      StringTokenizer st = new StringTokenizer(br.readLine());
      PrintWriter out = new PrintWriter(System.out);
      long n = Long.parseLong(st.nextToken());
     st = new StringTokenizer(br.readLine());
     long prod = 1;
     boolean fail;
      for(int i = 0; i < n; i++){
        long next = Long.parseLong(st.nextToken());
        if(Math.pow(10,18)/prod < next){
          fail = true;
          break;
        }
        prod *= next;
      }
     if(fail)
       out.println(-1);
     else
       out.println(prod);
      out.close();
   }
}


Compiler output:
Main.java:20: error: variable fail might not have been initialized
     if(fail)
        ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
	int n, x;
  	cin >> n;
  	int ans = 1;
  	vector<int> a(n);
  	for(auto & i : a)	cin >> i;
  	for(auto i : a){
      	ans *= x;
      	if(ans > 1e18){
        	cout << -1 << endl;
          	return;
        }
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:17: error: return-statement with no value, in function returning 'int' [-fpermissive]
   14 |                 return;
      |                 ^~~~~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: missing template arguments before '(' token
    6 |  vector(int) vec(a);
      |        ^
a.cc:6:9: error: expected primary-expression before 'int'
    6 |  vector(int) vec(a);
      |         ^~~
a.cc:8:10: error: 'vec' was not declared in this scope
    8 |   cin >> vec(i);
      |          ^~~
a.cc:10:8: error: 'vec' was not declared in this scope
   10 |   sort(vec.begin(), vec.end());
      |        ^~~
a.cc:14:16: error: 'i' was not declared in this scope
   14 |     sum *= vec(i);
      |                ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int A; cin>>A;
  vector<int long long> S(A);
  int L=0; int long long M=1;
  int K=0;
  for(int i=0; i<A; i++){
    cin>>S.at(A);
    if(S.at(i)==0)
      L++;
  }
  if(L!=0)
    cout<<0<<endl;
  else{
    for(int i=0; i<A; i++){
      M*=S.at(i);
    if(M>1000000000000000000){
      K++;
      break;
    }
      else continue;
    }
    if(K>=1)
      cout<<-1<<endl;
    else cout<<M<<endl;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:27:4: error: expected '}' at end of input
   27 |   }
      |    ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++


#include <bits/stdc++.h>

#define ll long long int
#define vi vector<int>
#define vll vector<ll>
#define vvi vector < vi >
#define pii pair<int,int>
#define pll pair<long long, long long>
#define mod 1000000007
#define inf 1000000000000000001
#define all(c) c.begin(),c.end()
#define mp(x,y) make_pair(x,y)
#define mem(a,val) memset(a,val,sizeof(a))
#define eb emplace_back
#define f first
#define s second

using namespace std;

void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i : x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

/*****************************************************START******************************************************************/



int main()
{
	std::ios::sync_with_stdio(false);
	cin.tie(0);
	int T = 1;
	 //cin >> T;
	// cin.ignore(); must be there when using getline(cin, s)
	while (T--)
	{
		int n ; cin >> n; 
		ll ans = 1;
		vector<ll>arr(n);
		for(int i=0; i<n; i++){
			cin >> arr[i];
			if(arr[i] == 0){
				ans = 0; 
		}
		if(ans == 0){
			cout << 0 << endl;
			return 0; 
		}
		
		for(int i=0; i<n; i++){
			if(arr[i] <= (1000000000000000000)/ans){
				ans *= arr[i]; 
			}else{
				ans = -1; 
				break;
			}
			//debug(ans);
		}
		cout << ans << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:86:2: error: expected '}' at end of input
   86 | }
      |  ^
a.cc:53:1: note: to match this '{'
   53 | {
      | ^
Language: C++

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

using namespace std;

int main()
{
  int n;
  cin>>n;
  vector<long long>a(n,1);
  for(int i=0;i<n;i++)
  {
    cin>>a.at(i);
    if(a.at(i)==0)
      {
        ansok=false;
        cout<<0<<endl;
        break;
      }
  }
  long long ans=1;
  bool ansok=true;
  for(int i=0;i<n;i++)
  {
    ans*=a.at(i);
    if(ans>100000000000000000&&ansok==1)
    {
      ansok=false;
      cout<<-1<<endl;
      break;
    }
  }
  if(ansok)
  {
    cout<<ans<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: 'ansok' was not declared in this scope
   18 |         ansok=false;
      |         ^~~~~
Language: C++

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


int main(){
  int n;
  cin >> n;
  long long mult=1;
  vector<long long> a(n);
  rep(i,n){
    cin >> a[i];
  }
  rep(i,n)
    if(a[i]==0){
      cout << 0 << endl;
      return 0;
    }
  }

  rep(i,n){
    if(a[i]<=1e18/mult){
    mult *=a[i];
    }
    else{
      cout << -1 << endl;
      return 0;
    }
  }

  cout << mult << endl;
  return 0;
}


Compiler output:
a.cc:3:18: error: expected unqualified-id before 'for'
    3 | #define rep(i,n) for(int i=0;i<n;i++)
      |                  ^~~
a.cc:21:3: note: in expansion of macro 'rep'
   21 |   rep(i,n){
      |   ^~~
a.cc:21:7: error: 'i' does not name a type
   21 |   rep(i,n){
      |       ^
a.cc:3:30: note: in definition of macro 'rep'
    3 | #define rep(i,n) for(int i=0;i<n;i++)
      |                              ^
a.cc:21:7: error: 'i' does not name a type
   21 |   rep(i,n){
      |       ^
a.cc:3:34: note: in definition of macro 'rep'
    3 | #define rep(i,n) for(int i=0;i<n;i++)
      |                                  ^
a.cc:31:3: error: 'cout' does not name a type
   31 |   cout << mult << endl;
      |   ^~~~
a.cc:32:3: error: expected unqualified-id before 'return'
   32 |   return 0;
      |   ^~~~~~
a.cc:33:1: error: expected declaration before '}' token
   33 | }
      | ^
Language: C++

#include <iostream>
using namespace std;
int main(void){
    int n;
    
    cin>>n;
    
    long long a[100010]
    long long b=1;
    
    int i
    for(i=0;i<n;i++){
        cin>>a[i];
        if(a[i]==0)
            b=0;
    }
    int flag=0;
    
    if(b==0){
        cout<<b<<endl;
        return 0;
    }
    else{
        for(i=0;i<n;i++){
        b=b*a[i];
        
        if(b>1000000000000000000)
            flag=1;
            break;
        }
    }    
    
    if(flag==1){
        cout<<"-1"<<endl;
        return 0;
    }else{
        cout<<b<<endl;
        return 0;
    }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: expected initializer before 'long'
    9 |     long long b=1;
      |     ^~~~
a.cc:12:5: error: expected initializer before 'for'
   12 |     for(i=0;i<n;i++){
      |     ^~~
a.cc:12:13: error: 'i' was not declared in this scope
   12 |     for(i=0;i<n;i++){
      |             ^
a.cc:19:8: error: 'b' was not declared in this scope
   19 |     if(b==0){
      |        ^
a.cc:25:13: error: 'a' was not declared in this scope
   25 |         b=b*a[i];
      |             ^
a.cc:37:15: error: 'b' was not declared in this scope
   37 |         cout<<b<<endl;
      |               ^
Language: C++

#include <stdio.h>
long long a [100010];
int main (){
int n;
scanf("%d",&n);
for(int i=0;i<n;i++) scanf("%lld",&a[i]);
int zero =0;
2
for(int i=0;i<n;i++)if(a[i]==0) zero++;
if(zero >0){
printf("0\n");
return 0;
}
long long prod =1;
for(int i=0;i<n;i++){
if(a[i ] <=1000000000000000000/ prod ){
prod *=a[i];
}else{
printf("-1\n");
return 0;
}
}
printf("%lld\n",prod );
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:2: error: expected ';' before 'for'
    8 | 2
      |  ^
      |  ;
    9 | for(int i=0;i<n;i++)if(a[i]==0) zero++;
      | ~~~
a.cc:9:13: error: 'i' was not declared in this scope
    9 | for(int i=0;i<n;i++)if(a[i]==0) zero++;
      |             ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
long double b=1e19;
int main()
{
  long long n;
  long double mul;
  mul=1;
  cin>>n;
  int i;
  long double a[b];
  for(i=0;i<n;i++)
  {
  if (a[i]<=b/mul)
  {
    mul=mul*a[i];
  }
  else
  {
    cout<<-1<<endl;
  }
    
  }
  if(mul<b)
  {
    cout<<mul<<endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: conversion from 'long double' to 'long unsigned int' in a converted constant expression
   11 |   long double a[b];
      |                 ^
a.cc:11:17: error: could not convert 'b' from 'long double' to 'long unsigned int'
   11 |   long double a[b];
      |                 ^
      |                 |
      |                 long double
a.cc:11:17: error: size of array 'a' has non-integral type 'long double'
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  vector<unsigned long long int>A(N);
  int conut1=0;
  unsigned long long int ans=1;
  int a=0;
  for(int i=0;i<N;i++){
    cin>>A[i];
    count+=A[i](log10);
    if(A[i]==0){
      a=1;
      break;
    }
  }
  if(count>=18)cout<<-1<<endl;
  else if(a==1)cout<<0<<endl;
  else{
    for(int i=0;i<N;i++)ans*=A[i];
    cout<<ans<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expression cannot be used as a function
   12 |     count+=A[i](log10);
      |            ~~~~^~~~~~~
a.cc:18:11: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator>='
   18 |   if(count>=18)cout<<-1<<endl;
      |      ~~~~~^~~~