Submission #1184900

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184900		islam_2010	Connecting Supertrees (IOI20_supertrees)	C++20	Compilation error	0 ms	0 KiB

supertrees

#include <bits/stdc++.h>
#include "supertrees.h"
#define all(x) x.begin(), x.end()
#define int long long
#define pii pair<int, int>
using namespace std;

const int sz = 1e5 + 5; 
const int mod = 1e9+7;

int binpow(int x, int n){
    int res = 1;
    n%=mod;
    while (n > 0){
        if(n&1){
            res = res * x % mod;
        }x = x * x % mod;
        n/=2;
    }return res;

}

int gcd(int a, int b){
    if(b == 0){
        return a;
    }
    return gcd(b, a % b);
}

bool is_prime(int n){
    if(n==1){
        return false;
    }if(n==2){
        return true;
    }
    for(int i = 2; i * i <= n; i++){
        if(n%i==0){
            return false;
        }
    }return true;
}



int construct(vector<vector<int>> p){
    int n = p.size();
    bool flag=true;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(p[i][j]!='1'){
                flag=false;
                break;
            }
        }if(!flag){
            break;
        }
    }if(flag){
        return 1;
    }
}



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

    
   
    
//     return 0;
// }

Compilation message (stderr)

supertrees.cpp: In function 'long long int construct(std::vector<std::vector<long long int> >)':
supertrees.cpp:60:1: warning: control reaches end of non-void function [-Wreturn-type]
   60 | }
      | ^
/usr/bin/ld: /tmp/cc04cqWY.o: in function `main':
grader.cpp:(.text.startup+0x383): undefined reference to `construct(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status