Submission #161525

#	Time	Username	Problem	Language	Result	Execution time	Memory
161525		kostia244	Detecting Molecules (IOI16_molecules)	C++14	9 / 100	9 ms	376 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define pb push_back
using namespace std;
using ll = long long;
using vi = vector<int>;
vi find_subset(int l, int u, std::vector<int> w) {
	vector<pair<int, int>> v;
	vector<ll> sum;
	for(int i = 0; i < w.size(); i++) v.pb({w[i], i});
	sort(all(v));
	sum.resize(w.size());
	sum[0]=v[0].first;
	for(int i = 1; i < w.size(); i++)
		sum[i]=sum[i-1]+v[i].first;
	vi ans;
	ll cur = 0;
	for(int i = w.size(); i--;) {
		if((i?sum[i-1]:0)+cur<l)
			cur+=v[i].first, ans.pb(v[i].second);
	}
	if(cur<l||cur>u) return {};
	return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'vi find_subset(int, int, std::vector<int>)':
molecules.cpp:12:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < w.size(); i++) v.pb({w[i], i});
                 ~~^~~~~~~~~~
molecules.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 1; i < w.size(); i++)
                 ~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31