Submission #1235266

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235266		yixuan19	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include <iostream>
#include <algorithm>
#include <queue>
#define int long long 

using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<int> res;
    vector<int> empty;
    priority_queue<pair<int,int> > seen;
    sort(w.begin(), w.end());
    int cnt = 0;
    int i = 0;
    while (cnt < l && i < w.size()){
        cnt+=w[i];
        seen.push(make_pair(-w[i],i));
        i++;
    }
    while (cnt > u && !seen.empty()){
        cnt -= -(seen.top().first);
        seen.pop();
    }
    if (cnt < l || cnt > u) return empty;
    while (!seen.empty()){
        res.push_back(seen.top().second);
        seen.pop();
    }
    return res;
}

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/cc2wcWDY.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