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

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

const ll MX = 1e18;

int main(){
    int n;
    cin >> n;
    ll ans = 1;
    bool ng = false;
    rep(i,n){
        ll a;
        cin >> a;
        if(a == 0){
            cout << 0 << endl;
            return ;
        }
        if(ng || __int128(ans) * a > MX){
            ng = true;
        }
        ans *= a;
    }
    if(ng) cout << -1 << endl;
    else cout << ans << endl;
    return 0;
}


Compiler output:
a.cc:4:12: error: 'Long' does not name a type; did you mean 'long'?
    4 | using ll = Long Long;
      |            ^~~~
      |            long
a.cc:7:7: error: 'll' does not name a type
    7 | const ll MX = 1e18;
      |       ^~
a.cc: In function 'int main()':
a.cc:12:5: error: 'll' was not declared in this scope
   12 |     ll ans = 1;
      |     ^~
a.cc:15:11: error: expected ';' before 'a'
   15 |         ll a;
      |           ^~
      |           ;
a.cc:16:16: error: 'a' was not declared in this scope
   16 |         cin >> a;
      |                ^
a.cc:19:13: error: return-statement with no value, in function returning 'int' [-fpermissive]
   19 |             return ;
      |             ^~~~~~
a.cc:21:27: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |         if(ng || __int128(ans) * a > MX){
      |                           ^~~
      |                           abs
a.cc:21:38: error: 'MX' was not declared in this scope
   21 |         if(ng || __int128(ans) * a > MX){
      |                                      ^~
a.cc:24:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   24 |         ans *= a;
      |         ^~~
      |         abs
a.cc:27:18: error: 'ans' was not declared in this scope; did you mean 'abs'?
   27 |     else cout << ans << endl;
      |                  ^~~
      |                  abs
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: 'i' was not declared in this scope
   10 |   for(i=0;i<=n;i++){
      |       ^
Language: Java

import java.util.Arrays;
import java.util.Scanner;

public class Multiplication2 {

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

        int a = scan.nextInt();
        long result = 1;
        long[] c = new long[a];
        long b = (long) Math.pow(10, 18);

        for (int i = 0; i < a; i++) {
            c[i] = scan.nextLong();

        }

        Arrays.sort(c);
        if (c[0] == 0) {
            System.out.println(0);
            return;
        }

            for (int j = 0; j < a; j++) {
                if (result > b/c[j]) {
                    System.out.println(-1);
                    return;
                }
                result *= c[j];
            }

            System.out.println(result);
    }

}

Compiler output:
Main.java:4: error: class Multiplication2 is public, should be declared in a file named Multiplication2.java
public class Multiplication2 {
       ^
1 error
Language: Java

import java.util.*;
import java.math.BigInteger;
 
public class Main {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        
        int n = scan.nextInt();

        List<Long> list = new ArrayList<Long>();
        for (int i = 0; i < n; i++) {
            long a = scan.nextLong();
            list.add(a);
        }

        Collections.sort(list);//System.out.println(list);
        // listの先頭が0だったら、0を出力して即終了
        if (list.get(0) == 0) {
            System.out.println(0);
            return;
        }

        // 1. BigIntegerクラスを用いて、オーバーフローが起きないようにする。
        BigInteger ans = BigInteger.ONE;
        boolean isOver = false;
        for (int i = 0; i < n; i++) {
            ans *= BigInteger.valueOf(list.get(i));
            if (ans > 1000000000000000000l) {
                isOver = true;
                break;
            }
        } 

        if (isOver) {
            System.out.println(-1);
        } else {
            System.out.println(ans);
        }
        /*
        * 2. multiplyExactメソッド（オーバーフローすると例外送出）を利用する方法。
        long ans = 1l;
        boolean isOver = false;
        try {
            for (int i = 0; i < n; i++) {
                long a = list.get(i);
                ans = Math.multiplyExact(ans, a);
                if (ans > 1000000000000000000l) {
                    isOver = true;
                    break;
                }
            } 
        } catch (ArithmeticException e) {
            isOver = true;
        }
        
        if (isOver) {
            System.out.println(-1);
        } else {
            System.out.println(ans);
        }
        */
        
        /* 
        * 3. オーバーフローすると、負の数や0になる可能性があることを考慮して場合わけする。
        long ans = 1l;
        for (int i = 0; i < n; i++) {
            long a = list.get(i);
            ans *= a;
            if (ans > 1000000000000000000l || ans <= 0) {
                break;
            }
        }
        if (ans > 1000000000000000000l || ans <= 0) {
            //System.out.println(ans);
            System.out.println(-1);
        } else {
            System.out.println(ans);
        }
        */
        
    }
}

Compiler output:
Main.java:28: error: bad operand types for binary operator '*'
            ans *= BigInteger.valueOf(list.get(i));
                ^
  first type:  BigInteger
  second type: BigInteger
Main.java:29: error: bad operand types for binary operator '>'
            if (ans > 1000000000000000000l) {
                    ^
  first type:  BigInteger
  second type: long
2 errors
Language: C++

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

#define FOR(i, j, k, in) for (int i=j ; i<k ; i+=in)
#define RFOR(i, j, k, in) for (int i=j ; i>=k ; i-=in)
#define REP(i, j) FOR(i, 0, j, 1)
#define RREP(i, j) RFOR(i, j, 0, 1)

#define INF (int)1e9
#define PI 3.1415926535897932384626433832795
#define MOD 1000000007
#define max (ull)1e18
typedef uint64_t ll;
typedef unsigned long long ull;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<string, string> pss;
typedef map<int, int> mii;


int main()
{

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll n;
    cin>>n;
    vector<ll>a(n);
    for(ll i=0;i<n;i++){
        cin>>a[i];
        if(a[i] == 0){
            cout<<"0";
            goto a;
        }
    }
    int ans=1;
    for(ll i=0;i<n;i++){
        if(a[i] <= max/ans ){
            ans *= a[i];
        }
        else{
            cout<<"-1";
            return 0;
        }

    }
    cout<<ans;
    a:
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:53:5: error: jump to label 'a'
   53 |     a:
      |     ^
a.cc:38:18: note:   from here
   38 |             goto a;
      |                  ^
a.cc:41:9: note:   crosses initialization of 'int ans'
   41 |     int ans=1;
      |         ^~~
Language: C++

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

using namespace std;

int main()
{
    int64_t N;
    cin >> N;

    vector<int64_t> vec(N);

    for (int64_t i = 0; i < N; i++) {
        cin >> vec.at(i);
    }

    int128_t answer = 1;
    bool toobig = false;

    sort(vec.begin(), vec.end());
    for (int64_t i = 0; i < N; i++) {
        answer *= vec.at(i);
        if (answer > 1000000000000000000) {
            toobig = true;
            break; 
        }
    }

    if (toobig) {
        cout << "-1"; 
    } else {
        cout << answer;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:5: error: 'int128_t' was not declared in this scope; did you mean 'int8_t'?
   18 |     int128_t answer = 1;
      |     ^~~~~~~~
      |     int8_t
a.cc:23:9: error: 'answer' was not declared in this scope
   23 |         answer *= vec.at(i);
      |         ^~~~~~
a.cc:33:17: error: 'answer' was not declared in this scope
   33 |         cout << answer;
      |                 ^~~~~~
Language: C++

#include "bits/stdc++.h"
using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define ALL(x) (x).begin(), (x).end()     //昇順
#define RALL(x) (x).rbegin(), (x).rend()  // 降順
#define pri(x) cout << (x) << "\n"
#define pri2(x, y) cout << (x) << " " << (y) << "\n"
#define pri3(x, y, z) cout << (x) << " " << (y) << " " << (z) << "\n"
const long long mod = 1e9 + 7;
typedef long long ll;
typedef priority_queue<int> PQ;
typedef vector<long long> VL;
typedef vector<bool> VB;
typedef vector<int> VI;  // VI a(n);
typedef vector<double> VD;
typedef vector<string> VS;
typedef vector<char> VC;
typedef vector<VS> VSS;
typedef vector<VC> VCC;
typedef vector<VI> VII;  // VII a(n,VI(m)) n * m
typedef vector<VL> VLL;
typedef pair<int, int> PII;
typedef map<int, int> MP;  // MP a;
typedef vector<pair<ll, ll>> PS;

template <class T, class U>
bool chmax(T &a, U b) {
  if (a <= b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T, class U>
bool chmin(T &a, U b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}
template <typename T>
ostream &operator<<(ostream &os, vector<T> &v) {
  os << "{";
  rep(i, (int)v.size()) { os << v[i] << (i < v.size() - 1 ? ", " : ""); }
  os << "}";
  return os;
}

// g++ -std=c++11 prac.cpp
// operator << (cout,a);
// chmin(min,a)
     
int main() {
  ll n, m, k, x=0, y=0 , z = 0, h,w, sum = 1, Max = -1, Min = 3e9+1;
  string u;
  bool ok=true;
  cin >> n;
  VL a(n);
  rep(i,n) {
    cin >> a[i];
    if(a[i]==0){
      pri(0); return 0;
    }
  }
  rep(i,n){
    if(sum * a[i] > INT64_C(1000000000000000000)){
      pri(-1);
      return 0;
    }
    sum *= a[i];
  }
  if(sum * a[i] > INT64_C(1000000000000000000)){
      pri(-1);
      return 0;
    }
  pri(sum);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:74:14: error: 'i' was not declared in this scope
   74 |   if(sum * a[i] > INT64_C(1000000000000000000)){
      |              ^
Language: C++

#include<stdio.h>
long long a[100010];
int main()
{
	int n;
	scanf("%d",&n);
	for(inti=0;i<n;i++)
	scanf("%lld",&a[i]);
	int zero=0;
	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:7:13: error: 'inti' was not declared in this scope; did you mean 'int'?
    7 |         for(inti=0;i<n;i++)
      |             ^~~~
      |             int
a.cc:7:20: error: 'i' was not declared in this scope
    7 |         for(inti=0;i<n;i++)
      |                    ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,n) for(i=0;i<(ll)n;++i)
ll j = 1e10;


int main(){
  ll n;
  cin >> n;
  vector<ll> a(n);
  rep(i,n) cin >> a.at(i);
  if( count(a.begin(),a.end(),0) > 0 ){
    cout << 0 << endl;
    return 0;
  }
  ll now = 1;
  rep(i,n){
    if( a.at(i) > j/now ){
      cout << -1 << endl;
      return 0;
    }
    now *= a.at(i);
  }
  cout << now << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:7: error: 'i' was not declared in this scope
   12 |   rep(i,n) cin >> a.at(i);
      |       ^
a.cc:4:22: note: in definition of macro 'rep'
    4 | #define rep(i,n) for(i=0;i<(ll)n;++i)
      |                      ^
a.cc:18:7: error: 'i' was not declared in this scope
   18 |   rep(i,n){
      |       ^
a.cc:4:22: note: in definition of macro 'rep'
    4 | #define rep(i,n) for(i=0;i<(ll)n;++i)
      |                      ^
Language: C++


constexpr int64_t wall = 1000000000000000000;
int main()
{
	int64_t temp = wall;
	int n = 0;
	cin >> n;
	int64_t temp1 = 0;
	int64_t ans = 1;
	for (int i = 0; i < n; i++)
	{
		cin >> temp1;
		if (temp1 == 0)
		{
			ans = 0;
			break;
		}
		temp /= temp1;
		if (temp == 0)
		{
			ans = -1;
			break;
		}
		ans *= temp1;
	}
	cout << ans << "\n";
	return 0;
}

Compiler output:
a.cc:2:11: error: 'int64_t' does not name a type
    2 | constexpr int64_t wall = 1000000000000000000;
      |           ^~~~~~~
a.cc:1:1: note: 'int64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | 
a.cc: In function 'int main()':
a.cc:5:9: error: 'int64_t' was not declared in this scope
    5 |         int64_t temp = wall;
      |         ^~~~~~~
a.cc:5:9: note: 'int64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
a.cc:7:9: error: 'cin' was not declared in this scope
    7 |         cin >> n;
      |         ^~~
a.cc:8:16: error: expected ';' before 'temp1'
    8 |         int64_t temp1 = 0;
      |                ^~~~~~
      |                ;
a.cc:9:16: error: expected ';' before 'ans'
    9 |         int64_t ans = 1;
      |                ^~~~
      |                ;
a.cc:12:24: error: 'temp1' was not declared in this scope
   12 |                 cin >> temp1;
      |                        ^~~~~
a.cc:15:25: error: 'ans' was not declared in this scope
   15 |                         ans = 0;
      |                         ^~~
a.cc:18:17: error: 'temp' was not declared in this scope
   18 |                 temp /= temp1;
      |                 ^~~~
a.cc:21:25: error: 'ans' was not declared in this scope
   21 |                         ans = -1;
      |                         ^~~
a.cc:24:17: error: 'ans' was not declared in this scope
   24 |                 ans *= temp1;
      |                 ^~~
a.cc:26:9: error: 'cout' was not declared in this scope
   26 |         cout << ans << "\n";
      |         ^~~~
a.cc:26:17: error: 'ans' was not declared in this scope
   26 |         cout << ans << "\n";
      |                 ^~~
Language: C++

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

int main(){
	int n; cin>>n;
	ll ans=1;
	bool flg=false;
	rep(i,n){
		ll a; cin>>a;
		if(a==){
			cout << 0 << endl;
			return 0;
		}
		if(flg||1e18/ans<a){
			flg=true;
		}
		ans*=a;
	}
	if(flg) cout << "-1" << endl;
	else cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:23: error: expected primary-expression before ')' token
   12 |                 if(a==){
      |                       ^
Language: C++

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

#define vint vector<int>
#define vvint vector<vint>
#define sint stack<int>
#define qint queue<int>
#define rep(i, n) for(int i=0;i<(int)(n);i++) // 繰り返し処理
#define all(x) (x).begin(),(x).end() // 全体 こんな感じで使う→sort(all(a));
#define ct(a) cout << a << endl
#define iceil(a,b) (a+(b-1))/b //int ceil : 繰り上げの割り算 通常のceilではceil((7.0/2.0))のようにしなければならなかった。
#define ld long double
#define ll long long
vint CinLine(int N){vint v(N);for(int i=0;i<N;i++){cin >> v.at(i);}return v;}//cin line 連続でvectorに格納
void CoutLine(vint v){for(int i=0;i<v.size()-1;i++){cout<<v.at(i)<<" ";}cout << v.at(v.size()-1)<<endl;}

bool IsOver2(ll a, ll b, ll lim){
    if(b > lim/a){
        return true;
    }else{
        return false;
    }
}

bool IsOver(ll a, ll b){
    ll x = b * a;
    return (x/a != b);
}

bool IsOver_ng(ll a, ll b){
    ll x = b * a;
    if(x/a != b){
        return true;
    }else{
        return false;
    }
}


void Main(){
    ll limit = pow(10,18);
    ll n;
    cin >> n;
    vector<ll> a(n);
    for(ll i = 0; i<n;i++){
        cin >> a[i];
        if(a[i] == 0){
            ct(0);
            return;
        }
    }
    ll ans = 1;
    for(ll i = 0; i < n; i++){
        if(IsOver(ans,a[i], limit)){
        //if(IsOver(ans,a[i])){
            ct(-1);
            return;
        }else {
            ans *= a[i];
            if ( ans > limit ){
                ct(-1);
                return;
            }
        }
    }
    ct(ans);
    return;
}

int main() {
    Main();
}


Compiler output:
a.cc: In function 'void Main()':
a.cc:54:18: error: too many arguments to function 'bool IsOver(long long int, long long int)'
   54 |         if(IsOver(ans,a[i], limit)){
      |            ~~~~~~^~~~~~~~~~~~~~~~~
a.cc:25:6: note: declared here
   25 | bool IsOver(ll a, ll b){
      |      ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
typedef long long ll;
#define _GLIBCXX_DEBUG
typedef vector<int> vec;
typedef vector<ll> lvec;
typedef vector<char> cvec;
typedef vector<double> dvec;
typedef pair<ll, ll> LP;
typedef tuple<ll, ll, ll> LT;
typedef pair<int, int> P;
typedef tuple<int, int, int> T;
#define fs first
#define sc second
const ll INF=1000000000000000000;
int main()	{
  int n;
  cin>>n;
  int128 sum=1;
  lvec vec(n);
  rep(i,n){
    cin>>vec[i];
    if(vec[i]==0){
      cout<<0<<endl;
      return 0;
    }
    if(INF<sum){
      cout<<-1<<endl;
      return 0;
    }
    sum*=vec[i];
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:3: error: 'int128' was not declared in this scope; did you mean 'ynf128'?
   22 |   int128 sum=1;
      |   ^~~~~~
      |   ynf128
a.cc:30:12: error: 'sum' was not declared in this scope
   30 |     if(INF<sum){
      |            ^~~
a.cc:34:5: error: 'sum' was not declared in this scope
   34 |     sum*=vec[i];
      |     ^~~
a.cc:36:9: error: 'sum' was not declared in this scope
   36 |   cout<<sum<<endl;
      |         ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
typedef long long ll;
#define _GLIBCXX_DEBUG
typedef vector<int> vec;
typedef vector<ll> lvec;
typedef vector<char> cvec;
typedef vector<double> dvec;
typedef pair<ll, ll> LP;
typedef tuple<ll, ll, ll> LT;
typedef pair<int, int> P;
typedef tuple<int, int, int> T;
#define fs first
#define sc second
const ll INF=1000000000000000000;
int main()	{
  int n;
  cin>>n;
  int128_t sum=1;
  lvec vec(n);
  rep(i,n){
    cin>>vec[i];
    if(vec[i]==0){
      cout<<0<<endl;
      return 0;
    }
    if(INF<sum){
      cout<<-1<<endl;
      return 0;
    }
    sum*=vec[i];
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:3: error: 'int128_t' was not declared in this scope; did you mean 'int8_t'?
   22 |   int128_t sum=1;
      |   ^~~~~~~~
      |   int8_t
a.cc:30:12: error: 'sum' was not declared in this scope
   30 |     if(INF<sum){
      |            ^~~
a.cc:34:5: error: 'sum' was not declared in this scope
   34 |     sum*=vec[i];
      |     ^~~
a.cc:36:9: error: 'sum' was not declared in this scope
   36 |   cout<<sum<<endl;
      |         ^~~
Language: C++

#include<iostream>
using namespace std;
using　ll=long long int;
int main(){
  ll a[100100];
  int n;
  cin>>n;
  for(int i=0;i<n;i++){
    cin>>a[i];
  }
  for(int i=;li<n;i++){
    if(a[i]==0){
     cout<<0<<endl;
      return 0;
    }
  }
  ll ans=1;
  for(int i=0;i<n;i++){
    if(a[i]<=1000000000000000000/ans){
        ans*=a[i];
    }else{
      cout<<-1<<endol;
      return 0;
    }
  }
cout<<ans<<endl;
  return 0;
}


Compiler output:
a.cc:3:1: error: extended character 　 is not valid in an identifier
    3 | using　ll=long long int;
      | ^
a.cc:3:1: error: 'using\U00003000ll' does not name a type
    3 | using　ll=long long int;
      | ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:3: error: 'll' was not declared in this scope
    5 |   ll a[100100];
      |   ^~
a.cc:9:10: error: 'a' was not declared in this scope
    9 |     cin>>a[i];
      |          ^
a.cc:11:13: error: expected primary-expression before ';' token
   11 |   for(int i=;li<n;i++){
      |             ^
a.cc:11:14: error: 'li' was not declared in this scope; did you mean 'i'?
   11 |   for(int i=;li<n;i++){
      |              ^~
      |              i
a.cc:12:8: error: 'a' was not declared in this scope
   12 |     if(a[i]==0){
      |        ^
a.cc:17:5: error: expected ';' before 'ans'
   17 |   ll ans=1;
      |     ^~~~
      |     ;
a.cc:19:8: error: 'a' was not declared in this scope
   19 |     if(a[i]<=1000000000000000000/ans){
      |        ^
a.cc:19:34: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |     if(a[i]<=1000000000000000000/ans){
      |                                  ^~~
      |                                  abs
a.cc:22:17: error: 'endol' was not declared in this scope
   22 |       cout<<-1<<endol;
      |                 ^~~~~
a.cc:26:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 | cout<<ans<<endl;
      |       ^~~
      |       abs
Language: C++

#include<iosteream>
using namespace std;
using　ll=long long int;
int main(){
  ll a[100100];
  int n;
  cin>>n;
  for(int i=0;i<n;i++){
    cin>>a[i];
  }
  for(int i=;li<n;i++){
    if(a[i]==0){
     cout<<0<<endl;
      return 0;
    }
  }
  ll ans=1;
  for(int i=0;i<n;i++){
    if(a[i]<=1000000000000000000/ans){
        ans*=a[i];
    }else{
      cout<<-1<<endol;
      return 0;
    }
  }
cout<<ans<<endl;
  return 0;
}

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

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

const int dh[] = {-1, 0, 1, 0};
const int dw[] = {0, -1, 0, 1};
 
int main () {
    int n;
    cin >> n;
    long long ans = 1;
    long long MX = 1000000000000000000;
    vector<long long >a(n);
    bool ng = false;
    rep(i, 0, n){
        cin >> a[i];
        if(a[i]==0){
            cout << 0 << endl;
            return 0;
        }
    }
    rep(i, 0, n){
        if( a[i] <= MX/ans){
            ans *= a[i];
        } else {
            cout << -1 << endl;
            return 0;
        }
    }
    cout << ans << endl;
    return 0 ;
}

Compiler output:
a.cc:23:16: error: macro "rep" passed 3 arguments, but takes just 2
   23 |     rep(i, 0, n){
      |                ^
a.cc:8:9: note: macro "rep" defined here
    8 | #define rep(i, n) for (int i = 0; i < n; ++i)
      |         ^~~
a.cc:30:16: error: macro "rep" passed 3 arguments, but takes just 2
   30 |     rep(i, 0, n){
      |                ^
a.cc:8:9: note: macro "rep" defined here
    8 | #define rep(i, n) for (int i = 0; i < n; ++i)
      |         ^~~
a.cc: In function 'int main()':
a.cc:23:5: error: 'rep' was not declared in this scope
   23 |     rep(i, 0, n){
      |     ^~~
a.cc:30:8: error: expected ';' before '{' token
   30 |     rep(i, 0, n){
      |        ^        ~
      |        ;
Language: C++

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

int main(){
    ll n,i;
    cin>>n;
    ll a[n];
	for(i=0;i<n;i++)cin>>a[i];
	sort(a,a+n);
	ll p=1;
	for(i=0;i<n;i++){
		p*=a[i];
		if(p>=1000000000000000000&&i!=n-1){
	        cout<<"-1"<<endl;
	        return 0;
        }
		if(a[i]==0){
			cout<<'0'<<endl;
			return 0;
		}
	} 
	if(p>1000000000000000000){
	    cout<<"-1"<<endl;
	    return 0;
	}
	if(p<0)p=-1;
    cout<<p<<endl;
	

Compiler output:
a.cc: In function 'int main()':
a.cc:28:19: error: expected '}' at end of input
   28 |     cout<<p<<endl;
      |                   ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
typedef long long ll;
#define _GLIBCXX_DEBUG
typedef vector<int> vec;
typedef vector<ll> lvec;
typedef vector<char> cvec;
typedef vector<double> dvec;
typedef pair<ll, ll> LP;
typedef tuple<ll, ll, ll> LT;
typedef pair<int, int> P;
typedef tuple<int, int, int> T;
#define fs first
#define sc second
const ll mx 1e18;
int main()	{
  int n;
  cin>>n;
  ll sum=1;
  lvec vec(n);
  rep(i,n){
    cin>>vec[i];
    if(vec[i]==0){
      cout<<0<<endl;
      return 0;
    }
    if(((mx+1)/sum)<vec[i]){
      cout<<-1<<endl;
      return 0;
    }
    sum*=vec[i];
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc:18:13: error: expected initializer before numeric constant
   18 | const ll mx 1e18;
      |             ^~~~
a.cc: In function 'int main()':
a.cc:30:10: error: 'mx' was not declared in this scope
   30 |     if(((mx+1)/sum)<vec[i]){
      |          ^~
Language: C++

#include<bits/stdc++.h>
#define rep(i, n)  for (int i = 0; i < (n); ++i)
using namespace std;
using v1 = vector<int>;
using v2 = vector<vector<int>>;
using ll = long long;

int main(){
	ll n;
	cin >> n;
	ll mult = 1;
	vector<long long> a(n);
	bool judge = true;
	for(auto& x: a){
		cin >> x;
		if(x == 0){
			cout << 0 << endl;
			return 0;
		}
	}
	ll c = 1e18;
	rep(i,n){
		if((c/mult < a.at(i)){
			cout << -1 << endl;
			return 0;
		}
		mult *= a.at(i);
	}
	cout << mult << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:38: error: expected ';' before '{' token
   23 |                 if((c/mult < a.at(i)){
      |                                      ^
      |                                      ;
a.cc:27:32: error: expected ')' before ';' token
   27 |                 mult *= a.at(i);
      |                                ^
      |                                )
a.cc:23:19: note: to match this '('
   23 |                 if((c/mult < a.at(i)){
      |                   ^
Language: C++

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

Compiler output:
a.cc:18:13: error: expected initializer before numeric constant
   18 | const ll mx 1000000000000000000;
      |             ^~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:30:8: error: 'mx' was not declared in this scope
   30 |     if(mx/sum<vec[i]){
      |        ^~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:23:12: error: expected '}' at end of input
   23 |   return 0;
      |            ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

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

Compiler output:
a.cc:18:14: error: expected initializer before numeric constant
   18 | const ll INF 1000000000000000000;
      |              ^~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:30:8: error: 'INF' was not declared in this scope
   30 |     if(INF/sum<vec[i]){
      |        ^~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
      long N=sc.nextLong();
      long[] A=new long[N];
      long x=1;
      for(long i=0;i<N;i++){
      	A[i]=sc.nextLong();
        x=x*A[i];
      }
      if(x<=1000000000000000000L){
      	System.out.println(x);
      }else{
      	System.out.println(-1);
      }
	}
}

Compiler output:
Main.java:6: error: incompatible types: possible lossy conversion from long to int
      long[] A=new long[N];
                        ^
Main.java:9: error: incompatible types: possible lossy conversion from long to int
      	A[i]=sc.nextLong();
      	  ^
Main.java:10: error: incompatible types: possible lossy conversion from long to int
        x=x*A[i];
              ^
3 errors
Language: C

#include<stdio.h>

int main() {
	int  n;
	scanf("%d\n", &n);
	long long ans = 1, a[n];
	for (int i = 0; i < n; i++) {
		scanf("%lld", &a[i]);
		if (a == 0) {
			printf("0\n");
			return 0;
		}
		if (a > 1e18 / ans) {
			printf("-1\n");
			return 0;
		}
		ans *= a[i];
	}

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

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:23: error: invalid operands to binary > (have 'long long int *' and 'double')
   13 |                 if (a > 1e18 / ans) {
      |                     ~ ^ ~~~~~~~~~~
      |                     |        |
      |                     |        double
      |                     long long int *
Language: C++

//shara's here
//SPEEEEEEEEEED IS KEEEEEEEEEEY
//REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAD
#include <bits/stdc++.h>
using namespace std;
typedef string s;
typedef long long ll;
typedef long double ld;
#if !defined(ONLINE_JUDGE)
#include "C:\debug.hpp"
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
#define pb push_back
#define ins insert
#define vl vector<ll>
#define speed ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
int main(){
    speed;
    ll t,k;
    bool z=0;
    unsigned long long ans=1;
    cin >> t;
    while(t--){
        cin>>k;
        if(k==0){z=1;break;}
        ans*=k;
    }
    if(z){cout<<0<<endl;return 0;}
    if(ans<=(ll)1e18)cout<<ans<<endl;
    else cout<<-1<<endl;






return 0;}
/*
███████████████████████████████████████████████████
███████████████████████████████████████████████████
██████████████████████████████████▀████████████████
██████████████████████████████████░▀███████████████
██████████████████████████████▌███░░░▀▀████████████
██▀████████████████████▐██████░▐██░░░░░░▀▀█████████
██░████████████████████▐█████▌░██▌▄░░░░▄▄░▄████▀███
█▌░███████████████████▀░█████░░░█░░░▄████░░███▀▐███
█▌░▐██████████████████░░████▌░░░▀░░▀███▀▀░▐███▄████
██░▀██████████████▌▐█▐▄▄████▌░░░░░░░░░░░░░▌████████
███░███████████████▀░▄▄██▀█▐░░░░░░░░░░░░░░▐████████
███▄░██████████████▄░░░░░░▀▀▀░░░░░░░░░░░░░█▐███████
████▄░██████████████████▄▄▄▄▄▄▐▄░░░░░░░░░░░████████
█████▄█████████████████▀▀▀▀▀▀░░░░░░░░░░░░░░████████
████████████████████████▄░░░░░░░░░░░░░░░▄░░████████
██████████████████████████▄▄▄░░░░░░░░░▄█░▄█████████
████████████████████████████████▄░░░░██▄███▀░░▀████
█████████████████████████████▀█████▄███▀▀▀░░▄▄░████
████████████████████████████▀░░▀░░▀▀░░░░▄▄▄██▀░░▀▀█
███████████████████████████▌░░░░░░░░░░░███████░░░▄█
███████████████▄░▀████████▀░░░░░░▀░░░░███████▌░░░██
███▄▄████████████▄░▀██████▄░░░░░█░░░░████████░░░▀▀
░▀█████████████████▄░▀█████░░░░██░░░░▀██████░░░░░▄█
▐█▄▀█████████████████▄░▀████░░░██▌░░░▐████▀░░░░▄███
▐███▄▀▀█████████████████▄░▀▀░░░░▀██▌▄█▀▀░░░▄▄██████
▀▀▀▀▀░░░▀▀▀▀▀░░░▀▀▀▀▀▀▀▀▀▀▀░░░░░░░▀▀░░░░░░▀▀▀▀▀▀▀▀▀
*/


Compiler output:
a.cc:10:10: fatal error: C:\debug.hpp: No such file or directory
   10 | #include "C:\debug.hpp"
      |          ^~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.*;
 
public class Main {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        
        int n = scan.nextInt();

        List<Long> list = new ArrayList<Long>();
        for (int i = 0; i < n; i++) {
            long a = scan.nextLong();
            list.add(a);
        }

        Collections.sort(list);　//System.out.println(list);
        // listの先頭が0だったら、0を出力して即終了
        if (list[0] == 0) {
            System.out.println(0);
            return;
        }

        long ans = 1l;
        for (int i = 0; i < n; i++) {
            long a = list.get(i);
            ans *= a;
            if (ans > 1000000000000000000l || ans <= 0) {
                break;
            }
        }

        if (flag) {
            System.out.println(0);
        } else {
        if (ans > 1000000000000000000l || ans <= 0) {
            //System.out.println(ans);
            System.out.println(-1);
        } else {
            System.out.println(ans);
        }
        }
        
    }
}

Compiler output:
Main.java:16: error: illegal character: '\u3000'
        Collections.sort(list);?//System.out.println(list);
                               ^
1 error
Language: Java

import java.util.*;

public class Main {

    public static void main(String args[]) {


        Scanner scan = new Scanner(System.in);

        int n = scan.nextInt();
        BigDecimal sum = BigDecimal.valueOf(1);

        for (int i= 0; i< n; i++) {

            long x = scan.nextLong();
            if (x == 0) {
                System.out.println(0);
                return;
            }
            BigDecimal x2 = BigDecimal.valueOf(x);
            sum = sum.multiply(x2);
        }


        BigDecimal a = BigDecimal.valueOf(1.0e18);

        if (sum.compareTo(a) == 1) {
            System.out.println(-1);
        }
        else {
            System.out.println(sum);
        }


    }


}

Compiler output:
Main.java:11: error: cannot find symbol
        BigDecimal sum = BigDecimal.valueOf(1);
        ^
  symbol:   class BigDecimal
  location: class Main
Main.java:11: error: cannot find symbol
        BigDecimal sum = BigDecimal.valueOf(1);
                         ^
  symbol:   variable BigDecimal
  location: class Main
Main.java:20: error: cannot find symbol
            BigDecimal x2 = BigDecimal.valueOf(x);
            ^
  symbol:   class BigDecimal
  location: class Main
Main.java:20: error: cannot find symbol
            BigDecimal x2 = BigDecimal.valueOf(x);
                            ^
  symbol:   variable BigDecimal
  location: class Main
Main.java:25: error: cannot find symbol
        BigDecimal a = BigDecimal.valueOf(1.0e18);
        ^
  symbol:   class BigDecimal
  location: class Main
Main.java:25: error: cannot find symbol
        BigDecimal a = BigDecimal.valueOf(1.0e18);
                       ^
  symbol:   variable BigDecimal
  location: class Main
6 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
	int n;
  long long ll = 1;
  	vector<int> vec(n);
  for(int i = 0; i < n; i++){
    	cin >> vec.at(i);
    	ll *= vec.at(i);
  }
  if(ll > 10 ^ 18){
    	cout << 10 ^ 18 % ll << endl;
  }else{
    	cout << ll << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:30: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   12 |         cout << 10 ^ 18 % ll << endl;
      |                      ~~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
	int n;
  long long ll = 0;
  	vector<int> vec(n);
  for(int i = 0; i < n; i++){
    	cin << vec(i);
    	ll *= vec(i);
  }
  if(ll > 10 ^ 18){
    	cout << 10 ^ 18 % ll << endl;
  }else{
    	cout << ll endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: no match for call to '(std::vector<int>) (int&)'
    8 |         cin << vec(i);
      |                ~~~^~~
a.cc:9:18: error: no match for call to '(std::vector<int>) (int&)'
    9 |         ll *= vec(i);
      |               ~~~^~~
a.cc:12:30: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   12 |         cout << 10 ^ 18 % ll << endl;
      |                      ~~~~~~~~^~~~~~~
a.cc:14:19: error: expected ';' before 'endl'
   14 |         cout << ll endl;
      |                   ^~~~~
      |                   ;
Language: C++

#include<iostream>
#include<algorithm>
#include<cstring>
#include<iomanip>
#include<cstdio>
#include<cmath>
using namespace std;
typedef long long ll;
const ll inf=0x3f3f3f3f;
int main()
{
	ll ans=1,a;
	while(cin>>a)
	{
		ans*=a;
		if(ans>1000000000000000000)
		{
			ans=-1;
			break;
		}
	}
	cout<<ans;
	return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:23:18: error: expected '}' at end of input
   23 |         return 0;
      |                  ^
a.cc:11:1: note: to match this '{'
   11 | {
      | ^
Language: C

#include<stdio.h>
int main(void){
  int i,n;
  long int a[100001], b=1;
  scanf("%d", &n);
  for(i=0;i<n;i++){
    scanf("%ld", &a[i]);
    if(a[i]==0){
      printf("0");
    }
    b = b*a[i];
    else if(b>1000000000000000000){
       printf("-1");
    }
  }
  printf("%ld", b);
  return 0;
}
    


Compiler output:
main.c: In function 'main':
main.c:12:5: error: 'else' without a previous 'if'
   12 |     else if(b>1000000000000000000){
      |     ^~~~
Language: C

#include<stdio.h>
int main(void){
  int i,n;
  long int a[100001], b=1;
  scanf("%d", &n);
  for(i=0;i<n;i++){
    scanf("%ld", &a[i]);
    if(a[i]==0){
      print(0);
    }
    b = b*a[i];
    else if(b>1000000000000000000){
       printf("-1");
    }
  }
  printf("%ld", b);
  return 0;
}
    


Compiler output:
main.c: In function 'main':
main.c:9:7: error: implicit declaration of function 'print'; did you mean 'printf'? [-Wimplicit-function-declaration]
    9 |       print(0);
      |       ^~~~~
      |       printf
main.c:12:5: error: 'else' without a previous 'if'
   12 |     else if(b>1000000000000000000){
      |     ^~~~
Language: C++

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

constexpr int64_t INF = 1'010'000'000'000'000'017LL;
constexpr int64_t MOD = 1'000'000'007LL;
constexpr double EPS = 1e-12;
constexpr double PI = 3.14159265358979323846;

#define FOR(i, start, end) for(int64_t i=start; i<end; i++)
#define REP(i, n) FOR(i, 0, n)

// 最大公約数gcd
// 最小公倍数lcm=m*n/gcd
uint64_t gcd(uint64_t m, uint64_t n) {
  uint64_t temp;
  while (m % n != 0){
    temp = n;
    n = m % n;
    m = temp;
  }
  return n;
}

uint64_t lcm(uint64_t m, uint64_t n) {
  return (m*n)/gcd(m,n);
}

void comb(vector<vector <uint64_t> > &v){
  for(uint64_t i = 0;i <v.size(); i++){
    v[i][0]=1;
    v[i][i]=1;
  }
  for(uint64_t k = 1;k <v.size();k++){
    for(uint64_t j = 1;j<k;j++){
      v[k][j]=(v[k-1][j-1]+v[k-1][j]);
    }
  }
}

bool is_product_overflow(uint64_t a, uint64_t b) {

	uint64_t prod = a * b;
	
	return (prod / b != a);
}

signed main() {
  uint64_t  n;
  cin >> n;

  uint64_t aMax = 1000000000000000000;
  uint64_t  a = 0;
  uint64_t aMul = 1;
  bool isOver = false;
  bool doesZeroExist = false;
  REP(i,n) {
    cin >> a;
    if(a==0)doesZeroExist = true;
    if(!isOverflow && aMax/a < aMul){
      isOver = true;
    }
    else {
      aMul *= a;
    }
  }
  if(doesZeroExist) {
    cout << "0" << endl;
    return 0;
  }
  if(isOver){
    cout << "-1" << endl;
    return 0;
  }
  cout << aMul << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:59:9: error: 'isOverflow' was not declared in this scope; did you mean 'isOver'?
   59 |     if(!isOverflow && aMax/a < aMul){
      |         ^~~~~~~~~~
      |         isOver
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: expected primary-expression before ')' token
   11 |     if(a[i] == ){
      |                ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  unsigned long long a,b=1;
  cin>>a;
  while(a--)
  {
    unsigned long long k;
    cin>>k;
    b=b*k;
    if(b>pow(10,18);
       {
         b=-1;
         break;
       }
       
    }
       cout<<b<<endl;
       return 0;
       }
  

Compiler output:
a.cc: In function 'int main()':
a.cc:13:8: error: expected primary-expression before '{' token
   13 |        {
      |        ^
a.cc:12:21: error: expected ')' before '{' token
   12 |     if(b>pow(10,18);
      |       ~             ^
      |                     )
   13 |        {
      |        ~             
a.cc:18:5: error: expected primary-expression before '}' token
   18 |     }
      |     ^
Language: C++

#include <bits/stdc++.h>

using namespace std;
using ll = unsigned long;

int main() {
	int n;
	cin >> n;
	vector<ll> a(n);
	ll mult=1ll;
	ll m18 = ll;
	for (int i=0;i< 18;i++) {
		m18 *= 10;
	}

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

	for (int i=0;i<n;i++) {
		if (a.at(i) == 0ll){
			cout << 0 << endl;
			return 0;
		}
	}
	for (int i=0;i<n;i++) {
		mult *= a.at(i);
		if (mult > m18) {
			cout << "-1" << endl;
			return 0;
		}
	}
	cout << mult << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:20: error: expected primary-expression before ';' token
   11 |         ll m18 = ll;
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
int N;
cin >> N;
vector<int64_t> vec(N);
for (int i = 0; i < N ;i++){
  cin >> vec.at(i);}
int64_t a = 1;
int64_t k = 1;
bool right = true;
for ( int i = 0 ; i < N ; i++){
 if ( vec.at(i) == 0 ) {
   a = 0 ;
   cout << 0 << endl;
   return 0;
 }
}
for ( int i = 0 ; i < 18 ; i++){
k *= 10;}
for (int i = 1; i < N ; i++){
  a *= vec.at(i);
  if ( a > k ) {
    right = false ;
    break;
}
}
  
if (0 ans && right) {cout << a << endl;}
else {cout << -1 << endl;}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:6: error: expected ')' before 'ans'
   30 | if (0 ans && right) {cout << a << endl;}
      |    ~ ^~~~
      |      )
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
	int k,i,flag=1,flag1=0;
	long long int data,res1=1;
	scanf("%d",&k);
	for(i=0;i<k;++i)
	{
		scanf("%lld",&data);
		if(data==0)
			flag1=1;
		if(res1<=10000000000000000000/data)
			res1=res1*data;
		else
			flag=0;
	}
	if(flag1)
	{
		printf("0\n");
		return 0;
	}
	else if(flag)
		printf("%lld\n",res);
	else
		printf("-1\n");
	return 0;
}
			
		


Compiler output:
main.c: In function 'main':
main.c:14:26: warning: integer constant is so large that it is unsigned
   14 |                 if(res1<=10000000000000000000/data)
      |                          ^~~~~~~~~~~~~~~~~~~~
main.c:25:33: error: 'res' undeclared (first use in this function); did you mean 'res1'?
   25 |                 printf("%lld\n",res);
      |                                 ^~~
      |                                 res1
main.c:25:33: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
long long int arr[10]
int main()
{
	int k,i,flag=1,flag1=0;
	long long int data,res1=1;
	scanf("%d",&k);
	for(i=0;i<k;++i)
	{
		scanf("%lld",&data);
		if(data==0)
			flag1=1;
		if(res1<=10000000000000000000/data)
			res1=res1*data;
		else
			flag=0;
	}
	if(flag1)
	{
		printf("0\n");
		return;
	]
	else if(flag)
		printf("%lld\n",res);
	else
		printf("-1\n");
	return 0;
}
			
		


Compiler output:
main.c:4:22: error: expected ';' before 'int'
    4 | long long int arr[10]
      |                      ^
      |                      ;
    5 | int main()
      | ~~~                   
main.c: In function 'main':
main.c:15:26: warning: integer constant is so large that it is unsigned
   15 |                 if(res1<=10000000000000000000/data)
      |                          ^~~~~~~~~~~~~~~~~~~~
main.c:23:17: error: 'return' with no value, in function returning non-void [-Wreturn-mismatch]
   23 |                 return;
      |                 ^~~~~~
main.c:5:5: note: declared here
    5 | int main()
      |     ^~~~
main.c:24:9: error: expected statement before ']' token
   24 |         ]
      |         ^
main.c:25:9: error: expected '}' before 'else'
   25 |         else if(flag)
      |         ^~~~
main.c:26:33: error: 'res' undeclared (first use in this function); did you mean 'res1'?
   26 |                 printf("%lld\n",res);
      |                                 ^~~
      |                                 res1
main.c:26:33: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'll' was not declared in this scope
    7 |   ll a[n];
      |   ^~
a.cc:9:10: error: 'a' was not declared in this scope
    9 |     cin>>a[i];
      |          ^
a.cc:10:5: error: expected ';' before 'ans'
   10 |   ll ans=1;
      |     ^~~~
      |     ;
a.cc:11:5: error: expected ';' before 'x'
   11 |   ll x=1e18;
      |     ^~
      |     ;
a.cc:14:8: error: 'a' was not declared in this scope
   14 |     if(a[i]==0)
      |        ^
a.cc:16:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |       ans=0;
      |       ^~~
      |       abs
a.cc:19:9: error: 'x' was not declared in this scope
   19 |     if((x/ans)<a[i])
      |         ^
a.cc:19:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |     if((x/ans)<a[i])
      |           ^~~
      |           abs
a.cc:19:16: error: 'a' was not declared in this scope
   19 |     if((x/ans)<a[i])
      |                ^
a.cc:24:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   24 |     ans*=a[i];
      |     ^~~
      |     abs
a.cc:24:10: error: 'a' was not declared in this scope
   24 |     ans*=a[i];
      |          ^
a.cc:26:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |   cout<<ans;
      |         ^~~
      |         abs
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
	int k,i,flag=1,flag1=0;
	long long int data,res=1,res1;
	long long pow1=pow(10,18);
	scanf("%d",&k);
	for(i=0;i<k;++i)
	{
		scanf("%lld",&data);
		if(data==0)
			flag1=1
		res1=res;
		if(pow1-res*data<0)
				flag=0;
		res=res*data;
		if(data!=0 && res1!=res/data)
				flag=0;
	}
	if(flag || flag1)
		printf("%lld\n",res);
	else
		printf("-1\n");
	return 0;
}
			
		


Compiler output:
main.c: In function 'main':
main.c:14:32: error: expected ';' before 'res1'
   14 |                         flag1=1
      |                                ^
      |                                ;
   15 |                 res1=res;
      |                 ~~~~