Submission #878888

#	Time	Username	Problem	Language	Result	Execution time	Memory
878888		Gray	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
#include <cassert>
#define ll long long
#define ln "\n"
#define ff first
#define ss second
#define ld long double
const ll INF = 2e18;
const ll MOD = 1e9+7;
using namespace std;

int find_subset(int l, int u, int w[], int n, int result[]){
	vector<pair<ll, ll>> bw(n);
	for (ll i=0; i<n; i++){
		bw[i] = {w[i], i};
	}
	sort(bw.rbegin(), bw.rend());
	vector<ll> ind;
	ll sum = 0;
	ll cp = 0;
	while (cp<n and sum+bw[cp].ff<=u){
		ind.push_back(bw[cp].ss);
		sum+=bw[cp].ff;
		cp++;
	}
	ll ccp = n-1;
	while (ccp>cp and sum+bw[ccp].ff<=l){
		ind.push_back(bw[ccp].ss);
		sum+=bw[ccp].ff;
		ccp--;
	}

	if (sum>=l and sum<=u){
		for (ll i=0; i<(int)ind.size(); i++){
			result[i] = (int)(ind[i]);
		}
		return (int)ind.size();
	}else return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccHXMYzk.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status