Submission #492081

#	Time	Username	Problem	Language	Result	Execution time	Memory
492081		robind3r	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	53 ms	4412 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"

using namespace std;

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<int> res;
    vector<pair<int, int>> sw;
    for(int i = 0; i < w.size(); i++){
    	sw.push_back({w[i], i});
	}
	
	sort(sw.begin(), sw.end());
	
	int left = 0;
	long long sum = 0;
	
	for(int i = 0; i < w.size(); i++){
		while(left < w.size() && sum < l){
			sum += sw[left].first;
			left++;
		}
		if(sum >= l && sum <= u){
			for(int j = i;  j < left; j++){
				res.push_back(sw[j].second);
			}
			goto end;
		}else{
			sum -= sw[i].first;
		}
	}
	end:
    
	return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i = 0; i < w.size(); i++){
      |                    ~~^~~~~~~~~~
molecules.cpp:18:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |  for(int i = 0; i < w.size(); i++){
      |                 ~~^~~~~~~~~~
molecules.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   while(left < w.size() && sum < l){
      |         ~~~~~^~~~~~~~~~

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