Submission #318439

#	Time	Username	Problem	Language	Result	Execution time	Memory
318439		study	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	512 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> find_subset(int l, int u, vector<int> v) {
  	vector<int> ans;
	vector<pair<int,int>> v2;
	for (int i=0; i<v.size(); ++i){
		v2.emplace_back(v[i],i);
	}
	int s = 0;
	sort(v2.rbegin(),v2.rend());
	for (auto i:v2){
		if (u-i.first >= 0){
			u -= i.first;
			s += i.first;
			ans.emplace_back(i.second);
		}
	}
	if (s >= l and !ans.empty()) return ans;
	return vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  for (int i=0; i<v.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