Submission #419282

#	Time	Username	Problem	Language	Result	Execution time	Memory
419282		Mohammed_Atalah	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	57 ms	4548 KiB

molecules

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

std::vector<int> find_subset(int l, int u, std::vector<int> w) {

	std::vector< pair <int, int> > nums;



	for (int i = 0; i < w.size(); i++) {
		if (w[i] >= l && w[i] <= u) {
			std::vector<int> p;
			p.push_back(i);
			return p;
		} else if (w[i] > u) {
			continue;
		}
		nums.push_back(make_pair(w[i], i));
	}
	if (nums.size() == 0) {
		std::vector<int> v;
		return v;
	}

	sort(nums.begin(), nums.end());

	bool there = false;

	int len = nums.size();

	int left = 0; int right = 0;
	long long total = nums[0].first;

	while (left < len && right < len) {
		if (total <= u && total >= l) {
			there = true;
			break;
		} else if (total < l) {
			right++;
			if (right < len) {
				total += nums[right].first;
			}
		} else if (total > u) {
			total -= nums[left].first;
			left++;

		}
	}

	if (there == true) {
		std::vector<int> res;
		for (int i = left; i < right + 1; i++) {
			res.push_back(nums[i].second);
		}
		return res;
	}


	std::vector<int> v;
	return v;





}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:11:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  for (int i = 0; i < w.size(); i++) {
      |                  ~~^~~~~~~~~~

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