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

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(ll i=0; i < n; i++)
#define FOR(i, m, n) for(ll i = m; i < n; i++)
#define all(vec) vec.begin(), vec.end()
#define tmax(x, y, z) max((x), max((y), (z)))
#define tmin(x, y, z) min((x), min((y), (z)))
ll MM = 1000000000; ll mod = MM + 7; ll MMM=9223372036854775807;//2^63 -1
ll GCD(ll x, ll y){ if(y == 0) return x; else return GCD(y, x % y);}
ll LCM(ll x, ll y){ return x / GCD(x, y) * y;}
template<class T> inline bool chmin(T& a, T b){ if(a > b){ a = b; return true;} return false;}
template<class T> inline bool chmax(T& a, T b){ if(a < b){ a = b; return true;} return false;}
const ll INF = 1LL << 60;
//cout << fixed << setprecision(10);
template<typename T>
vector<T> make_v(size_t a,T b){return vector<T>(a,b);}

template<typename... Ts>
auto make_v(size_t a,Ts... ts){
  return vector<decltype(make_v(ts...))>(a,make_v(ts...));
}

int main(){
	ll n;
    cin>>n;
    vector<ll> a(n);
    rep(i,n) cin>>a[i];
    sort(all(a));
    int128_t ans = 1, th = 1;
    rep(i,18) th *= 10;
    rep(i,n){
    	if(a[i] == 0){
        	ans = 0;
            break;
        }
        if(ans*a[i] > th){
        	ans = -1;
            break;
        }
        ans *= a[i];
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:5: error: 'int128_t' was not declared in this scope; did you mean 'int8_t'?
   30 |     int128_t ans = 1, th = 1;
      |     ^~~~~~~~
      |     int8_t
a.cc:31:15: error: 'th' was not declared in this scope; did you mean 'tm'?
   31 |     rep(i,18) th *= 10;
      |               ^~
      |               tm
a.cc:34:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   34 |                 ans = 0;
      |                 ^~~
      |                 abs
a.cc:37:12: error: 'ans' was not declared in this scope; did you mean 'abs'?
   37 |         if(ans*a[i] > th){
      |            ^~~
      |            abs
a.cc:37:23: error: 'th' was not declared in this scope; did you mean 'tm'?
   37 |         if(ans*a[i] > th){
      |                       ^~
      |                       tm
a.cc:41:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   41 |         ans *= a[i];
      |         ^~~
      |         abs
a.cc:43:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   43 |     cout << ans << endl;
      |             ^~~
      |             abs
Language: C

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


Compiler output:
main.c: In function 'main':
main.c:13:17: error: 'res1' undeclared (first use in this function); did you mean 'res'?
   13 |                 res1=res;
      |                 ^~~~
      |                 res
main.c:13:17: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long int

using namespace std;

int main(){
  fastIO
  ll n;
  cin>>n;
  ll arr,c=1;
  double p;
  while(n--){
  cin>>arr;
  c=c*arr;
   if(arr==0)
     cout<<0<<endl,return(0);
    p+=log10((double)arr);
  }
  if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,return(0);
  cout<<c<<endl;
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:20: error: expected primary-expression before 'return'
   17 |      cout<<0<<endl,return(0);
      |                    ^~~~~~
a.cc:20:58: error: expected primary-expression before 'return'
   20 |   if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,return(0);
      |                                                          ^~~~~~
Language: C++

#include<bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long int

using namespace std;

int main(){
  fastIO
  ll n;
  cin>>n;
  ll arr,c=1;
  double p;
  while(n--){
  cin>>arr;
  c=c*arr;
   if(arr==0)
     cout<<0<<endl,return 0;
    p+=log10((double)arr);
  }
  if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,return 0;
  cout<<c<<endl;
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:20: error: expected primary-expression before 'return'
   17 |      cout<<0<<endl,return 0;
      |                    ^~~~~~
a.cc:20:58: error: expected primary-expression before 'return'
   20 |   if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,return 0;
      |                                                          ^~~~~~
Language: C++

#include<bits/stdc++.h>
#define fastIO ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long int

using namespace std;

int main(){
  fastIO
  ll n;
  cin>>n;
  ll arr,c=1;
  double p;
  while(n--){
  cin>>arr;
  c=c*arr;
   if(arr==0)
     cout<<0<<endl,break();
    p+=log10((double)arr);
  }
  if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,break();
  cout<<c<<endl;
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:20: error: expected primary-expression before 'break'
   17 |      cout<<0<<endl,break();
      |                    ^~~~~
a.cc:20:58: error: expected primary-expression before 'break'
   20 |   if(arr>18.00 || c>1000000000000000000L) cout<<-1<<endl,break();
      |                                                          ^~~~~
Language: C++

#include <cstdio>

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

bool c(unsigned long long int a, unsigned long long int s) {
    if (a < 1000000000 && s < 1000000000) return true;
    if (a > 1000000000 && s > 1000000000) return false;
    if (d(a) + d(s) > 20) return false
    return a * s < 1000000000000000000;
}

int main() {
    int n;
    unsigned long long int a, s = 1;
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        scanf("%lld", &a);
        if (c(a, s)) {
            s *= a;
        } else {
            s = -1;
            break;
        }
    }
    if (s > 1000000000000000000) printf("-1\n");
    else printf("%lld\n", s);
    return 0;
}

Compiler output:
a.cc: In function 'bool c(long long unsigned int, long long unsigned int)':
a.cc:15:39: error: expected ';' before 'return'
   15 |     if (d(a) + d(s) > 20) return false
      |                                       ^
      |                                       ;
   16 |     return a * s < 1000000000000000000;
      |     ~~~~~~
Language: C++

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

int main(){
    int n;
    cin>>n;
    vector<ll>a(n);
    rep(i,n)cin>>a[i];
    if(count(a.begin(),a.end(),0)!=0){
        cout<<0<<endl;
        return 0;
    
    ll ans=1;
    rep(i,n){
        if(a[i]<=1000000000000000000/ans){
            ans*=a[i];
        }
        else{cout<<-1<<endl; return 0;}
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:2: error: expected '}' at end of input
   24 | }
      |  ^
a.cc:6:11: note: to match this '{'
    6 | int main(){
      |           ^
Language: C++

a=input()
ans=1;
ok=True
for i in range(a):
    c=input()
    ans*=c
    if ans>1000000000000000000:
        ok=False
        break
if ok:
    print(ans)
else :
    print(-1)

Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a=input()
      | ^
a.cc:3:1: error: 'ok' does not name a type
    3 | ok=True
      | ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
  cin>>n;
  vector<int> v(n);
long long k=1e18;
  for(int i=0;i<n;i++)
    cin>>v[i];
  long long ans=1;
  double x,y;
  for(int i=0;i<n;i++)
  {
    x=log10(ans);
    y=log10(v[i]);
    if(x+y>=18)
    {
      ans=-1;
      break;
    }
   else
     ans*=a[i];
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:11: error: 'a' was not declared in this scope
   23 |      ans*=a[i];
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
  cin>>n;
  vector<int> v(n);
long long k=1e18;
  for(int i=0;i<n;i++)
    cin>>a[i];
  long long ans=1;
  double x,y;
  for(int i=0;i<n;i++)
  {
    x=log10(ans);
    y=log10(a[i]);
    if(x+y>=18)
    {
      ans=-1;
      break;
    }
   else
     ans*=a[i];
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:10: error: 'a' was not declared in this scope
   10 |     cin>>a[i];
      |          ^
a.cc:16:13: error: 'a' was not declared in this scope
   16 |     y=log10(a[i]);
      |             ^
Language: C++

//header{{{
#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
#include<boost/multiprecision/cpp_int.hpp>
//#include<boost/math/common_factor_rt.hpp>
//#include<boost/multiprecision/cpp_dec_float.hpp>
  
using namespace std;
using namespace boost;
using namespace multiprecision;  

#define rep(i,n) for(int i=0;i<(n);++i)
#define reps(i,n) for(int i=1;i<=(n);++i)
#define all(x) (x).begin(),(x).end()
#define Fixed fixed << setprecision(12)
#define int int64_t
using pii = pair<int,int>;
constexpr int INF  = 0x3f3f3f3f;
constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr int mod1 = 1e9+7; 
constexpr int mod2 = 998244353;

template <class A, class B> inline bool chmax(A &a, const B &b) { return b > a && (a = b, true); }
template <class A, class B> inline bool chmin(A &a, const B &b) { return b < a && (a = b, true); }

template <class T> using min_heap = priority_queue<T,vector<T>,greater<T> >;
template <class T> using max_heap = priority_queue<T>;
template <class A, class B> using umap = unordered_map<A,B>;
  
inline int square(int a){ return a * a;}
inline int updiv(int a,int b){ return (a + b - 1) / b; }

constexpr int dx[] = {1,0,-1,0,1,1,-1,-1};
constexpr int dy[] = {0,-1,0,1,1,-1,-1,1};
//}}}

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

  int n;
  cin >> n;
  
  vector<cpp_int> a(n);
  
  rep(i,n){
	cin >> a[i];
    if(a[i] == 0){
      return cout << 0 << '\n', 0;
    }
  }
   
  cpp_int mul = 1;
  
  rep(i,n){
    mul *= a[i];
    if(mul > 1e18){
      return cout << -1 << '\n', 0;
    }
  }

  cout << mul << '\n';
  
  return 0;
}


Compiler output:
a.cc:4:9: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    4 | #include<boost/multiprecision/cpp_int.hpp>
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

n = int(input())

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

if 0 in x:
  print(0)
else:
  res = 1
  ok = False
  for i in x:
    res = res * i
    if res > int(1e18):
      print(-1)
      ok = True
      break
  if not ok :
    print(res)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^
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;
    for(int i=0;i<n;i++)if(a[i]==0) zero ++;

    if(zero >0){
        cout<<"0\n"<<endl;
        return 0;
    }
    long long prod =1;
    for(int i=0;i<n;i++){
        if(a[i ] <=1000000000000000000/ prod ){
            prod *=a[i];
        }else{
            cout<<"-1\n"<<endl;
            return 0;
        }
    }
    cout<<prod<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'cout' was not declared in this scope
   11 |         cout<<"0\n"<<endl;
      |         ^~~~
a.cc:11:22: error: 'endl' was not declared in this scope
   11 |         cout<<"0\n"<<endl;
      |                      ^~~~
a.cc:19:13: error: 'cout' was not declared in this scope
   19 |             cout<<"-1\n"<<endl;
      |             ^~~~
a.cc:19:27: error: 'endl' was not declared in this scope
   19 |             cout<<"-1\n"<<endl;
      |                           ^~~~
a.cc:23:5: error: 'cout' was not declared in this scope
   23 |     cout<<prod<<endl;
      |     ^~~~
a.cc:23:17: error: 'endl' was not declared in this scope
   23 |     cout<<prod<<endl;
      |                 ^~~~
Language: C++

#include <stdio.h>
#include <iostream>
#define MAX 1000000000000000000

bool is_product_overflow(long long a, long long b) {
	return (LLONG_MAX / b < a);
}

int main() {

	int  N;
	std::cin >> N;

	long long* A;
	A = new long long[N];
	long long mul = 1;

	for (int i = 0;i < N;i++) {
		std::cin >> A[i];
		if (A[i] == 0) {
			std::cout << "0" << std::endl;
			return 0;
		}
	}

	for (int i = 0;i < N;i++) {
		if (is_product_overflow(mul, A[i]) || A[i] > MAX) {
			std::cout << "-1" << std::endl;
			return 0;
		}
		else {
			mul = mul * A[i];
		}
	}

	if (mul <= MAX) {
		std::cout << mul << std::endl;
	}
	else {
		std::cout << "-1" << std::endl;
	}
	

	return 0;
}

Compiler output:
a.cc: In function 'bool is_product_overflow(long long int, long long int)':
a.cc:6:17: error: 'LLONG_MAX' was not declared in this scope
    6 |         return (LLONG_MAX / b < a);
      |                 ^~~~~~~~~
a.cc:3:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    2 | #include <iostream>
  +++ |+#include <climits>
    3 | #define MAX 1000000000000000000
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<ll> a(n);
  for (int i = 0 ; i < n; i++){
    cin >> a[i];
    if (a[i] == 0){
      cout << 0 << endl;
      return 0;        
    }
  }
  float ansf = 1;
  ll ans = 1;
  for (int i = 0; i < n ; i++){
    ans *= a[i];
    ansf *= a[i];
    if (ans > 1000000000000000000 || anf > 1000000000000000000 ){
      cout << -1 << endl;
      return 0;
    }
    if (ans < 0){
      cout << -1 << endl;
      return 0;
    }
  }  
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:38: error: 'anf' was not declared in this scope; did you mean 'ans'?
   21 |     if (ans > 1000000000000000000 || anf > 1000000000000000000 ){
      |                                      ^~~
      |                                      ans
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  long long a,c;
  int p;
  float b,d;
  cin>>a;
  cin>>b;
  d=b*100 + 0.01;
  p=(int)d;
  c=a*p;
  c/=100;
  cout<<c<<endl;
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:15:12: error: expected '}' at end of input
   15 |   return 0;
      |            ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

int main() {
	INIT;


// MAT(ll,c,n,m);

VAR(int,n)
VEC(ll,a,n);
ll ans =a[0];
ll comp = pow(10,18);

REP(i,n){
	if(a[i] ==0){
		OUT(0)
		return 0;
	}
}

FOR(i,1,n){
	// if(is_product_overflow(ans,a[i])){
	// 	OUT(-1);
	// 	return 0;
	// }
	ans *= a[i];	
	if(ans > comp){
		OUT(-1)
		return 0;
	}
}
OUT(ans)

// if(ans > comp)
// 	OUT(-1)
// else
// 	OUT(ans)

// OUT(pow(10,18))
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:2:9: error: 'INIT' was not declared in this scope
    2 |         INIT;
      |         ^~~~
a.cc:7:5: error: expected primary-expression before 'int'
    7 | VAR(int,n)
      |     ^~~
a.cc:7:9: error: 'n' was not declared in this scope
    7 | VAR(int,n)
      |         ^
a.cc:7:1: error: 'VAR' was not declared in this scope
    7 | VAR(int,n)
      | ^~~
a.cc:9:1: error: 'll' was not declared in this scope
    9 | ll ans =a[0];
      | ^~
a.cc:10:3: error: expected ';' before 'comp'
   10 | ll comp = pow(10,18);
      |   ^~~~~
      |   ;
a.cc:12:5: error: 'i' was not declared in this scope
   12 | REP(i,n){
      |     ^
a.cc:12:1: error: 'REP' was not declared in this scope
   12 | REP(i,n){
      | ^~~
a.cc:19:1: error: 'FOR' was not declared in this scope
   19 | FOR(i,1,n){
      | ^~~
a.cc:30:5: error: 'ans' was not declared in this scope
   30 | OUT(ans)
      |     ^~~
a.cc:30:1: error: 'OUT' was not declared in this scope
   30 | OUT(ans)
      | ^~~
Language: C

#include<stdio.h>

#define ma 1000000000000000000
int main()
{
  	int N,i=0;
  	long long A[1000000];
  	long long prod=1;
  	scanf("%d",&N);
	while(i<=N){
		scanf("%lld",&A[i]);
		i++;
	}
	i = 0
  	while(prod<=ma && i<N)
	{
		if(A[i]==0){
			prod =0;
			break;
		}
		prod = prod * A[i];
		
	}	
	if (prod<=ma)
		printf("%lld",prod);
	else
		printf("-1");
}

Compiler output:
main.c: In function 'main':
main.c:14:14: error: expected ';' before 'while'
   14 |         i = 0
      |              ^
      |              ;
   15 |         while(prod<=ma && i<N)
      |         ~~~~~ 
main.c:26:9: error: 'else' without a previous 'if'
   26 |         else
      |         ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define fo(i, n) for(int i=0; i<n; i++)
#define Fo(i, k, n) for(int i=k; i<n; i++)
#define MOD 1000000007
#define ll long long
#define vi vector<int>
#define pb push_back
#define newline cout<<endl
//template<class T, class T1> int chkmin(T &x, const T1 &y) { return x > y ? x = y, 1 : 0; }
//template<class T, class T1> int chkmax(T &x, const T1 &y) { return x < y ? x = y, 1 : 0; }
const int MAX = 1e18
#define w(x) int x; cin>>x; while(x--)
int case_no=1;
ll solve(ll array[], int n, int zerocount) {
	ll ans=1;
	if(zerocount > 0) return 0;
	fo(i, n) {
		ans *= array[i];
		if(ans > MAX) return -1;
	}
	return ans;
}
int main()
{
	
	int n, zerocount=0;
	ll array[100000];
	cin>>n;
	fo(i, n) {
		cin>>array[i];
		if(array[i]==0) zerocount++;
	}
	cout<<solve(array, n, zerocount)<<endl;
	
	return 0;
}

Compiler output:
a.cc:12:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   12 | const int MAX = 1e18
      |                 ^~~~
a.cc:14:1: error: expected ',' or ';' before 'int'
   14 | int case_no=1;
      | ^~~
Language: C++

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

#define ll long long 
using namespace std;
int main(){
    int n;
    ll a,b,c=1;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a;
        c=c*a;
        if(c>1000000000000000000){
        cout<<"-1";
        return 0;
        }
    }
    cout<<c;
    return 0;
}#include<iostream>
#include<bits/stdc++.h>
using namespace std;

#define ll long long 
using namespace std;
int main(){
    int n;
    ll a,b,c=1;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a;
        c=c*a;
        if(c>1000000000000000000){
        cout<<"-1";
        return 0;
        }
    }
    cout<<c;
    return 0;
}

Compiler output:
a.cc:21:2: error: stray '#' in program
   21 | }#include<iostream>
      |  ^
a.cc:21:3: error: 'include' does not name a type
   21 | }#include<iostream>
      |   ^~~~~~~
a.cc:27:5: error: redefinition of 'int main()'
   27 | int main(){
      |     ^~~~
a.cc:7:5: note: 'int main()' previously defined here
    7 | int main(){
      |     ^~~~
Language: C++

N = int(input())
A = input().split()
A = [int(a) for a in A]
p = 1 if (len([n for n in A if n == 0]) == 0) else 0
for i in range(len(A)):
  p *= A[i]
  if p > 1000000000000000000:
    p = -1
    break
print(p)

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

//https://atcoder.jp/contests/abc169/tasks/abc169_b
#include <bits/stdc++.h>
using namespace std;
int main()
{
  int N; //最大値が10^5だからintで大丈夫
  //long longが10^19までだけど念のためもう一つ大きいサイズを定義↓
  unsigned long long result = 1, max = 1000000000000000000; 
  cin >> N;
  //変数を格納するためのリストの定義
  vector<long long> A(N);
  //入力
  for (int i = 0; i < N; i++){
    cin >> A[i];
    //0 * x = 0のため入力に0があればプログラムを終了
    if (A[i] == 0){
      cout << '0' << endl;
      return 0;
    }
    //入力値と今までの数を積算
    result *= A[i];
  }
  //積算の結果が10^18より大きかったら-1を出力
  if (result > max){
    cout << "-1" << endl;
    return 0;
  }
  //出力
  cout << result << endl;
  return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:30:12: error: expected '}' at end of input
   30 |   return 0;
      |            ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

import java.util.Scanner;
import java.math.BigInteger;
public class Main
{
	public static void main(String args[])throws Exception
	{
	   Scanner in=new Scanner(System.in);
	   int n=in.nextInt();
	   BigInteger k;
	   BigInteger p=new BigInteger("1");
	   while(n--!=0)
	   {
	   	 k=in.nextBigInteger();
	   	 p=p.multiply(k);
	   }
         BigInteger r,q;
         q=p;
         int c=0;
        BigInteger w=new BigInteger("0");
        BigInteger aa=new BigInteger("10");
		while(p.compareTo(w)==1)
		{
		 
		    p=p.divide(aa);
		    c++;
		}
		if(c>18)
		System.out.println("-1");
		else
		System.out.println(q);
		
	}
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.math.BigInteger;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main
      | ^~~~~~
Language: C++

#include<bits/stdc++.h>
#define ll long long
#define lLimit 1000000000000000000
#define testfor(T) ll T; cin>>T; while(T--)
using namespace std;
void quickstart()
{
	ios_base::sync_with_stdio(0);
	// freopen("input.txt", "r", stdin);
	// freopen("output.txt", "w", stdout);
}
int main()
{
	quickstart();
	int n;
	ll a, product = 1;
	cin >> n;
	while (n--)
	{
		cin>>a;
		if(a<=llimit/product){
			product*=a;
		}else {
			product=-1;
			cout<<product;
			return 0;
		}
	}
	cout<<product<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:23: error: 'llimit' was not declared in this scope; did you mean 'lLimit'?
   21 |                 if(a<=llimit/product){
      |                       ^~~~~~
      |                       lLimit
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:20:25: error: return-statement with no value, in function returning 'int' [-fpermissive]
   20 |                         return;
      |                         ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define ull unsigned long long
#define mod 1000000000000000000
#define MAX INT_MAX
int main()
{
 ll t,a;
 cin>>t;
 vector<long double> v;
 int flag=0;
 long double i;
 for(i=0;i<t;++i)
 {
 	cin>>a;
 	flag=0;
 	v.push_back(a);
 	if(a==0)
 	{
 		flag=1;
 	}
 	
 }
 if(flag==1) {
 	cout<<0<<endl;
  }
 else{
 sort(v.begin(),v.end());
 long double pro=1;
 for(i=v.size()-1;i>=0;i--)
 {
 	pro*=v[i];
 	if(pro>mod){
 		break;
 	}

 }
}
 //cout<<pro<<endl;
 //cout<<i<<endl;
 
 if(i<0) cout<<(long long int)pro<<endl;
 else cout<<-1<<endl;

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:31: error: 'pro' was not declared in this scope
   43 |  if(i<0) cout<<(long long int)pro<<endl;
      |                               ^~~
Language: C++

n = int(input())
x = list(map(int, input().split()))

if 0 in x :
    print(0)
else :
    ans = 1;
    for i in range(n - 1):
        ans *= x[i]
        if ans > 1000000000000000000:
            print(-1)
            continue
    print(ans)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^
a.cc:8:5: error: expected unqualified-id before 'for'
    8 |     for i in range(n - 1):
      |     ^~~
Language: C++

#include<iostream>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<long long> a(n);
  int i;
  bool f = true;
  for(i=0;i<n&&f;i++) {
    cin >> a[i];
    if(a[i]==0)f=false;
  }
  long long now=1;
i=0;
  while(f&&i<n) {
if((long long)1e18/now>a[i])f = false;
    else now *= a[i];
  }
cout << (f?now:-1) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<long long> a(n);
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:6:10: error: expected primary-expression before 'long'
    6 |   vector<long long> a(n);
      |          ^~~~
a.cc:10:12: error: 'a' was not declared in this scope
   10 |     cin >> a[i];
      |            ^
a.cc:16:24: error: 'a' was not declared in this scope
   16 | if((long long)1e18/now>a[i])f = false;
      |                        ^
Language: C++

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

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

  long long ans = 1;
  bool flag = false;
  for (int i = 0; i < n; i++) {
    long long a;
    cin >> a;
    if (a == 0) {
      cout << 0 << endl;
      return 0;
    }
    if (max / ans < a || ans * a > 1000000000000000000) {
      flag = true;
    } else {
      ans *= a;
    }
  }

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

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:13: error: invalid operands of types '<unresolved overloaded function type>' and 'long long int' to binary 'operator/'
   17 |     if (max / ans < a || ans * a > 1000000000000000000) {
      |         ~~~~^~~~~
Language: C++

#include <iostream>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <queue>
#include <stack>
#include <vector>
#include <algorithm>
#include <map>
#include <unordered_map>
#include <set>
#include <deque>
#include <utility>

int main(){
  int N;
  scanf("%d", &N);
  std::vector<long long >A(N);
  int zerocount=0;
  for (int i=0; i<N; i++){
    scanf("%lld", &A[i]);
    if (A[i]==0) zerocount++;
  }
  if (zerocount>0){
    printf("0\n");
  } else {
    long long ans=1;
    if (A[i]>(long long)1e18/ans){
      printf("-1\n");
      return 0;
    }
    std::cout << ans << std::endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:11: error: 'i' was not declared in this scope
   29 |     if (A[i]>(long long)1e18/ans){
      |           ^
Language: C++

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

int main()
{
    ios_base::sync_with_stdio(false);
    long long a, b, total = 1;
    cin >> a;
    for (int i = 0; i < a; i++)
    {
        cin >> b;
        total *= b;
        if (total < 0 || total > 1e18LL)
        {
            cout << -1;
            return 0;
        }
    }

    cout << total;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:34: error: unable to find numeric literal operator 'operator""LL'
   13 |         if (total < 0 || total > 1e18LL)
      |                                  ^~~~~~
Language: C++

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

#define FASTIO  ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ll long long int
#define ld long double
#define vll vector<ll>
#define pll pair<ll,ll>
#define vl(p) vector<p>
#define w while
#define For(i,s,x) for(i=s;i<x;i++)
#define Fore(i,s,x) for(i=s;i<=x;i++)
#define FOR(i,x) for(i=0;i<x;i++)
#define Rof(i,s,x) for(i=s;i>=x;i--)
#define all(v) v.begin(),v.end()
#define it(r,v) for(auto r=v.begin();r!=v.end();r++)
#define pb push_back
#define in insert
#define sz size()
#define F first
#define S second
#define nl cout<<"\n"
#define pr(a) cout<<a<<" "
#define pr2(a,b) cout<<a<<" "<<b<<"\n"
#define pr3(a,b,c) cout<<a<<" "<<b<<" "<<c<<"\n"
#define mod 1000000000000000000

int main()
{
	FASTIO;
	ll n,i,mul=1,flag=0;
	cin>>n;
	ll a[n];
	for(i=0;i<n;i++)
    {
        cin>>a[i];
   }

    for(i=0;i<n;i++)
    {
        if(a[i]==0)
        {
            cout<<0<<"\n";
            flag=1;
            break;
        }
   }

if(flag==0)
{

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

        if((a[i ] >1000000000000000000/ mul)
            {
            cout<<-1<<"\n";
            flag=1;
            break;
            }
            else
            mul=mul*a[i];

    }
}
    if(flag==0)
            cout<<mul<<"\n";

}


Compiler output:
a.cc: In function 'int main()':
a.cc:55:45: error: expected ';' before '{' token
   55 |         if((a[i ] >1000000000000000000/ mul)
      |                                             ^
      |                                             ;
   56 |             {
      |             ~                                
a.cc:61:13: error: expected primary-expression before 'else'
   61 |             else
      |             ^~~~
a.cc:60:14: error: expected ')' before 'else'
   60 |             }
      |              ^
      |              )
   61 |             else
      |             ~~~~
a.cc:55:11: note: to match this '('
   55 |         if((a[i ] >1000000000000000000/ mul)
      |           ^
Language: C++

#include <bits/stdc++.h>

#include <boost/multiprecision/cpp_int.hpp>

using namespace std;

constexpr int MOD = 1000000007;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  cout << fixed << setprecision(15);

  int n;
  cin >> n;

  int128_t ans = 0;
  bool ok = true;
  for (int i = 0; i < n; ++i) {
    int128_t a;
    cin >> a;
    if (a == 0) {
      ans = 0;
      break;
    }
    if (ok) {
      if (i == 0) {
        ans += a;
      } else {
        ans *= a;
      }
      if (ans > 1000000000000000000) {
        ans = -1;
        ok = false;
      }
    }
  }

  cout << ans << '\n';

  return 0;
}


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

//include
//------------------------------------------
#include <algorithm>//sort,二分探索,など
#include <bitset>//固定長bit集合
#include <cmath>//pow,logなど
#include <complex>//複素数
#include <deque>//両端アクセスのキュー
#include <functional>//sortのgreater
#include <iomanip>//setprecision(浮動小数点の出力の誤差)
#include <iostream>//入出力
#include <iterator>//集合演算(積集合,和集合,差集合など)
#include <map>//map(辞書)
#include <numeric>//iota(整数列の生成),gcdとlcm(c++17)
#include <queue>//キュー
#include <set>//集合
#include <stack>//スタック
#include <string>//文字列
#include <unordered_map>//イテレータあるけど順序保持しないmap
#include <unordered_set>//イテレータあるけど順序保持しないset
#include <utility>//pair
#include <vector>//可変長配列
#include <list>
#include <utility>
#include <sstream>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>

using namespace std;

#define SORT(x) sort((x).begin(),(x).end())
typedef long long ll;
int inf = 1e18;


int main(){
    int n;
    cin >> n;
    vector<int> a(n);
    int ans = 1;
    
    for(int i = 0; i < n; i++){
        cin >> a[i];
    }
    SORT(a)
    for(int i = 0; i < n; i++){
        ans *= a[i];
        if(a[i] == 0){
            cout << "0";
            break;
        }
        if(ans > 1e18){
            cout << "-1";
            break;
        }
    }
    cout << ans << endl;

    cout << endl;
    return 0;
}


Compiler output:
a.cc:35:11: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   35 | int inf = 1e18;
      |           ^~~~
a.cc: In function 'int main()':
a.cc:48:5: error: expected ';' before 'for'
   48 |     for(int i = 0; i < n; i++){
      |     ^~~
a.cc:48:20: error: 'i' was not declared in this scope
   48 |     for(int i = 0; i < n; i++){
      |                    ^
Language: C++

//https://twitter.com/chokudai/status/1267093176973549571
#include <bits/stdc++.h>
using namespace std;

int main()
{
    long long N;
    long long A[10000000];
    long long sum = 1;

    cin >> N;

    for (int i = 0; i < N; i++)
    {
        cin >> A[i];
        if (A[i] == 0)
        {
            cout << "0" << endl;
            return 0;
        }
    }

    for (int i = 0; i < N; i++)
    {
        if (sum > 1000000000000000000)
        {
            cout << "-1" << endl;
            return 0;
        }
        else if
        {
            sum = sum * A[i];
        }
    }

    if (sum <= 1000000000000000000)
    {
        printf("%llu\n", sum);
        return 0;
    }
    else
    {
        cout << "-1" << endl;
        return 0;
    }
}

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

int solve(long long N, std::vector<long long> A)
{
    long long sum = A[0];
    for (int i = 1; i < N; i++)
    {
        sum = sum * A[i];
    }

    if (1000000000000000000 < sum)
    {
        cout << "-1" << endl;
    }
    else
    {
        printf("%lld\n", sum);
    }

    //cout << fixed << setprecision(20) << sum << endl;
    return 0;
}

// Generated by 1.1.7.1 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
int main()
{
    long long N;
    scanf("%lld", &N);
    std::vector<long long> A(N);
    for (int i = 0; i < N; i++)
    {
        scanf("%lld", &A[i]);
    }
    solve(N, std::move(A));
    return 0;
}
*/

Compiler output:
a.cc: In function 'int main()':
a.cc:31:9: error: expected '(' before '{' token
   31 |         {
      |         ^
      |         (
Language: C

#include <stdio.h>

int main(void) {
  int n;

  scanf("%d", &n);

  long long unsigned int ans = 1;
  for (int i = 0; i < n; i++) {
    long long unsigned int num;
    scanf("%llu", &num);
    
    if (num == 0) {
      printf("0");
      return 0;
    }
    
    if (ans <= 1000000000000000000)
      ans *= num;
  }
  
  if (ans <= max)
    printf("%llu", ans);
  else
    printf("-1");
  
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:22:14: error: 'max' undeclared (first use in this function)
   22 |   if (ans <= max)
      |              ^~~
main.c:22:14: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void){
  int i, n
  scanf("%d", &n);

  int num;
  long int cul = 1;

  for(i=0;i<n;i++){
    scanf("%d", &num);
    cul *= num;
  }

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

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    4 |   scanf("%d", &n);
      |   ^~~~~
main.c:9:13: error: 'n' undeclared (first use in this function)
    9 |   for(i=0;i<n;i++){
      |             ^
main.c:9:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void){
  int i, n
  scanf("%d", &n);

  int num;
  long int cul = 1;

  for(i=0;i<n;i++){
    scanf("%d", &num);
    cul *= num;
  }

  printf("%d\n", num);

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    4 |   scanf("%d", &n);
      |   ^~~~~
main.c:9:13: error: 'n' undeclared (first use in this function)
    9 |   for(i=0;i<n;i++){
      |             ^
main.c:9:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void){
  int i, n
  scanf("%d", &n);

  int num;
  long cul = 1;

  for(i=0;i<n;i++){
    scanf("%d", &num);
    cul *= num;
  }

  printf("%d\n", num);

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    4 |   scanf("%d", &n);
      |   ^~~~~
main.c:9:13: error: 'n' undeclared (first use in this function)
    9 |   for(i=0;i<n;i++){
      |             ^
main.c:9:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

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


ll LINF = 1e18 ;
int main()
{
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n ;
  cin >> n ;
  vector<ll> a(n) ;
  REP(i,n){
    cin >> a[i] ;
  }
  sort(ALL(a)) ;
  if(a[0]==0){
    cout << 0 <<endl;
    return 0 ;
  }
  ll ans =  1;
  REP(i,n){
    if(LINF/ans<=a[i]){
      ans *= a[i] ;
    }
    else{
      cout << -1 <<endl;
      return 0 ;
    }
  }
  cout << ans <<endl;


    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:8: error: 'ALL' was not declared in this scope
   20 |   sort(ALL(a)) ;
      |        ^~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: 'n' was not declared in this scope
   11 | for (int i= 0 ; n < N ; n++){
      |                 ^
Language: C++

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

int main(){
    int n;
    ll a = 1;
    bool can =true;
    cin  >> n;
    
    rep(i,n){
        if(vec.at(i) == 0){
            cout << 0 << endl;
            can = false;
            break;
        }
    }

    
   if(can){
       rep(i,n){
           a *= vec.at(i);
           if(vec.at(i) > 1000000000000000000/a){
               cout << -1 << endl;
               can = false;
               break;
           }
       }
   }
    
if(can){
    cout << a <<endl;
}
   
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: 'vec' was not declared in this scope
   14 |         if(vec.at(i) == 0){
      |            ^~~
a.cc:24:17: error: 'vec' was not declared in this scope
   24 |            a *= vec.at(i);
      |                 ^~~
Language: C++

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

int main(){
    int n;
    ll a = 1;
    bool can =true;
    cin  >> n;
    
    rep(i,n){
        if(vec.at(i) == 0){
            cout << 0 << endl;
            can = false;
            break;
        }
       

    
   if(can){
       rep(i,n){
           a *= vec.at(i);
           if(vec.at(i) > 1000000000000000000/a){
               cout << -1 << endl;
               can = false;
               break;
           }
       }
   }
    
if(can){
    cout << a <<endl;
}
   
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: 'vec' was not declared in this scope
   14 |         if(vec.at(i) == 0){
      |            ^~~
a.cc:24:17: error: 'vec' was not declared in this scope
   24 |            a *= vec.at(i);
      |                 ^~~
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:7:11: note: to match this '{'
    7 | int main(){
      |           ^
Language: C++

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


}

Compiler output:
a.cc:4:1: error: '::main' must return 'int'
    4 | int64_t main() {
      | ^~~~~~~
Language: C

#include <stdio.h>

int main(void){
  	long long a[100000];
  	int n;
	long long prod = 1;
  
 	scanf("%d", &n);
  
  	for(int i=0;i<n;i++) {
    	scanf("%lld", &a[i]);
    }

  	for(int i=0;i<n;i++) {
    	if(a[i]==0) {
        	printf("0\n");
          	return 0;
        }
    }
  
  	for(int i=0;i<n;i++) {
    	//if (a[i] <= 1000000000000000000 / prod) {
        	prod *= a[i];
        //} else {
        //    printf("-1\n");
        //  	return 0;
        //}
    }
  	if (prod > 1000000000000000000) {
    	printf("-1\n")
    } else {
 		printf("%lld", prod);
    }
  

}

Compiler output:
main.c: In function 'main':
main.c:30:23: error: expected ';' before '}' token
   30 |         printf("-1\n")
      |                       ^
      |                       ;
   31 |     } else {
      |     ~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < n; i++)
int main()
{
    int n;
    cin >> n;
    int64_t a;
    int64_t ans = 1;
    rep(i, n)
    {
        cin >> a;
        if (a > 1000000000000000000/abs(ans)
        {
            ans = -1;
        }
        ans *= a;
        // cout << ans << endl;
    }
    if (ans > 1000000000000000000 || ans < 0)
    {
        cout << -1 << endl;
    }
    else
    {
        cout << ans << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:45: error: expected ';' before '{' token
   17 |         if (a > 1000000000000000000/abs(ans)
      |                                             ^
      |                                             ;
   18 |         {
      |         ~                                    
a.cc:21:17: error: expected ')' before ';' token
   21 |         ans *= a;
      |                 ^
      |                 )
a.cc:17:12: note: to match this '('
   17 |         if (a > 1000000000000000000/abs(ans)
      |            ^
Language: C++

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

int main(){
  int N;
  cin>>N;
  vector <unsigned long long> vec(N);
  for(int i =0; i <N; i++){
    cin >> vec.at(i);
  }
  long long ans = 1;
  int judge = 0;
  for(long long i=0; i<N; i++){
    if(vec.at(i)==0){
      judge = 1;
      ans = 0
      break;
    }
  }
  if(judge == 1){
    cout<<ans<<endl;
  }
  else{
    ans = 1
    for(long long i=0; i<N; i++){
      ans *= vec.at(i);
      if(ans>1000000000000000000){
        ans = -1;
        break;
      }
    }
    cout<<ans<<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:14: error: expected ';' before 'break'
   16 |       ans = 0
      |              ^
      |              ;
   17 |       break;
      |       ~~~~~   
a.cc:24:12: error: expected ';' before 'for'
   24 |     ans = 1
      |            ^
      |            ;
   25 |     for(long long i=0; i<N; i++){
      |     ~~~     
a.cc:25:24: error: 'i' was not declared in this scope
   25 |     for(long long i=0; i<N; i++){
      |                        ^
Language: C++

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

int main() {
  int n;
  ll ans = 1;
  cin >> n;

  //ベクトル配列の入力
  vector<ll> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  sort(a.begin(), a.end());

  int zero = 1;
  for (int i = 0; i < n; i++) {
    if (a[i] == 0) {
      zero++;
    }
  }

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


Compiler output:
a.cc: In function 'int main()':
a.cc:33:9: error: 'prod' was not declared in this scope
   33 |         prod *= a[i];
      |         ^~~~
Language: C++

#include<bits/stdc++.h>
#include<vector>
#include<string>
using namespace std;
#define l long long
#define pb push_back
#define mem(a,n) memset(a,n,sizeof(a))
#define find(v,n) find(v.begin(),v.end(),n)
#define sort1(v) sort(v.begin(),v.end())
#define lb(v,i,n) lower_bound(v.begin()+i,v.end(),n)
#define ub(v,n) upper_bound(v.begin(),v.end(),n)
#define mod 1000000007
#define reverse(s) reverse(s.begin(),s.end())
//#define pi pair<l,l> 
const double pi=3.141592653589793;
bool isprime(l n)
{
	for(l i=2;i*i<=n;i++)
	{
		if(n%i==0)
			return false;
	}
	return true;
}
vector<l> fact(l n)
{
	vector<l> v;
	for(l i=1;i*i<=n;i++)
	{
		if(n%i==0)
		{
			v.pb(i);
			if(i!=n/i)
			{
				v.pb(n/i);
			}
		}
	}
	return v;
}//prefixsums
void frooty()
{
	l n;
	cin>>n;
	l ans1=1;
	for(l i=0;i<n;i++)
	{
		l a;
		cin>>a;
		if(ans<=1e18/a)
		{
			ans*=a;
		}
		else
		{
			ans=-1;
		}
	}
	if(ans<0)
	{
		cout<<-1<<"\n";
	}
	else
		cout<<ans<<"\n";
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int q=1;
	//cin>>q;
	while(q--)
	{
		frooty();
	}
}

Compiler output:
a.cc: In function 'void frooty()':
a.cc:50:20: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   50 |                 if(ans<=1e18/a)
      |                    ^~~
      |                    ans1
a.cc:59:12: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   59 |         if(ans<0)
      |            ^~~
      |            ans1
Language: C++

#include<bits/stdc++.h>
#include<vector>
#include<string>
using namespace std;
#define l long long
#define pb push_back
#define mem(a,n) memset(a,n,sizeof(a))
#define find(v,n) find(v.begin(),v.end(),n)
#define sort1(v) sort(v.begin(),v.end())
#define lb(v,i,n) lower_bound(v.begin()+i,v.end(),n)
#define ub(v,n) upper_bound(v.begin(),v.end(),n)
#define mod 1000000007
#define reverse(s) reverse(s.begin(),s.end())
//#define pi pair<l,l> 
const double pi=3.141592653589793;
bool isprime(l n)
{
	for(l i=2;i*i<=n;i++)
	{
		if(n%i==0)
			return false;
	}
	return true;
}
vector<l> fact(l n)
{
	vector<l> v;
	for(l i=1;i*i<=n;i++)
	{
		if(n%i==0)
		{
			v.pb(i);
			if(i!=n/i)
			{
				v.pb(n/i);
			}
		}
	}
	return v;
}//prefixsums
void frooty()
{
	l n;
	cin>>n;
	l ans1=1;
	for(l i=0;i<n;i++)
	{
		l a;
		cin>>a;
		ans=((ans*a)>=1e18)?-1:(ans*a);
	}
	if(ans<0)
	{
		cout<<-1<<"\n";
	}
	else
		cout<<ans<<"\n";
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int q=1;
	//cin>>q;
	while(q--)
	{
		frooty();
	}
}

Compiler output:
a.cc: In function 'void frooty()':
a.cc:50:17: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   50 |                 ans=((ans*a)>=1e18)?-1:(ans*a);
      |                 ^~~
      |                 ans1
a.cc:52:12: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   52 |         if(ans<0)
      |            ^~~
      |            ans1
Language: C++

#include<bits/stdc++.h>
#include<vector>
#include<string>
using namespace std;
#define l long long
#define pb push_back
#define mem(a,n) memset(a,n,sizeof(a))
#define find(v,n) find(v.begin(),v.end(),n)
#define sort1(v) sort(v.begin(),v.end())
#define lb(v,i,n) lower_bound(v.begin()+i,v.end(),n)
#define ub(v,n) upper_bound(v.begin(),v.end(),n)
#define mod 1000000007
#define reverse(s) reverse(s.begin(),s.end())
//#define pi pair<l,l> 
const double pi=3.141592653589793;
bool isprime(l n)
{
	for(l i=2;i*i<=n;i++)
	{
		if(n%i==0)
			return false;
	}
	return true;
}
vector<l> fact(l n)
{
	vector<l> v;
	for(l i=1;i*i<=n;i++)
	{
		if(n%i==0)
		{
			v.pb(i);
			if(i!=n/i)
			{
				v.pb(n/i);
			}
		}
	}
	return v;
}//prefixsums
void frooty()
{
	l n;
	cin>>n;
	l ans1=1;
	for(l i=0;i<n;i++)
	{
		l a;
		cin>>a;
		ans=((ans*a)>=1e18)?-1::(ans*a);
	}
	if(ans<0)
	{
		cout<<-1<<"\n";
	}
	else
		cout<<ans<<"\n";
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int q=1;
	//cin>>q;
	while(q--)
	{
		frooty();
	}
}

Compiler output:
a.cc: In function 'void frooty()':
a.cc:50:17: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   50 |                 ans=((ans*a)>=1e18)?-1::(ans*a);
      |                 ^~~
      |                 ans1
a.cc:50:39: error: expected ':' before '::' token
   50 |                 ans=((ans*a)>=1e18)?-1::(ans*a);
      |                                       ^~
      |                                       :
a.cc:50:41: error: expected id-expression before '(' token
   50 |                 ans=((ans*a)>=1e18)?-1::(ans*a);
      |                                         ^
a.cc:52:12: error: 'ans' was not declared in this scope; did you mean 'ans1'?
   52 |         if(ans<0)
      |            ^~~
      |            ans1