Submission #1138641

#	Time	Username	Problem	Language	Result	Execution time	Memory
1138641		tnknguyen_	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

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

#define endl '\n' 
#define ll long long 
#define len(s) (int)s.size() 
#define int long long 

#define pii pair<int, int>
#define fi first
#define se second
#define MASK(k) (1LL << (k))

vector<int> find_subset(int l, int u, vector<int> w){
    int sum = 0, i = 0, j = 0;
    bool ok = 0;
    for(; i<len(w); ++i){
        while(sum < l && j<len(w)){
            sum += w[j];
            ++j;
        }
        if(l <= sum && sum <= u){
            ok = 1;
            break;
        }
        sum -= w[i];
    }
    vector<int> ans;
    if(ok) for(int x=i; x<j; ++x) ans.push_back(x);
    return ans;
}

// int32_t main() {
//     ios_base::sync_with_stdio(0);
//     cin.tie(0);
//     cout.tie(0);

//     freopen("main.inp","r",stdin);
//     freopen("main.out","w",stdout);

//     vector<int> v = find_subset(10, 20, {15, 17, 16, 18});
//     for(int x : v) cout << x << ' ';

//     return 0;
// }

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/ccxHDepz.o: in function `main':
grader.cpp:(.text.startup+0x173): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status