Submission #1021226

#	Time	Username	Problem	Language	Result	Execution time	Memory
1021226		vjudge1	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

// #pragma once

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

int n;
ll a[200100];

ll sum(int l, int r){
	return a[r] - a[l-1];
}

std::vector<int> find_subset(ll L, ll R, std::vector<int> w){
	n = w.size();
	for(int i = 0; i < n; i++){
		a[i+1] = w[i];
	}
	sort(a + 1, a + n + 1);
	for(int i = 1; i <= n; i++){
		a[i] += a[i-1];
	}
	for(int k = 1; k <= n; k++){
		if(max(L, sum(1, k)) <= min(R, sum(n - k + 1, n))){
			int i = 1;
			while(sum(i, i + k - 1) < L || sum(i, i + k - 1) > R){
				i++;
			}
			multiset<int> s;
			for(int j = i; j < i + k; j++){
				s.insert(a[j] - a[j-1]);
			}
			vector<int> res;
			for(int i = 0; i < n; i++){
				if(s.count(w[i])){
					s.erase(s.find(w[i]));
					res.push_back(i);
				}
			}
			return res;
		}
	}
	return {};
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccJ1AWYx.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