Submission #759838

#	Time	Username	Problem	Language	Result	Execution time	Memory
759838		JellyTheOctopus	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

// IOI 2016 Day 1 Problem 1
// Detecting Molecules
// https://oj.uz/problem/view/IOI16_molecules
 
#include <bits/stdc++.h>
using namespace std;
 
#define f first
#define s second
 
vector<int> find_subset(long long l, long long u, vector<int> w) {
	int N = (int)w.size();
	vector<pair<long long, int>> valWeight(N);
	for (int i = 0; i < N; i++) {
		valWeight[i] = {w[i]*1LL, i};
	}
	sort(valWeight.begin(), valWeight.end());
	deque<int> dq;
	long long curSum = 0;
	int i = 0;
	while (i < N) {
		if (l <= curSum && curSum <= u) {
			break;
		}
		if (curSum > u) {
			curSum -= valWeight[dq.front()].f;
			dq.pop_front();
			continue;
		}
		if (curSum < l) {
			curSum += valWeight[i].f;
			dq.push_back(i);
			i++;
		}
		
	}
	vector<int> ans;
	while (!dq.empty() && (l <= curSum && curSum <= u)) {
		ans.push_back(valWeight[dq.front()].s);
		dq.pop_front();
	}
	sort(ans.begin(), ans.end());
	return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cch3g0Z1.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