Submission #372308

#	Time	Username	Problem	Language	Result	Execution time	Memory
372308		mahmoudbadawy	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	58 ms	6260 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) {
	vector<pair<int,int> > v;
	for(int i=0;i<w.size();i++)
		v.push_back({w[i],i});
	sort(v.begin(),v.end());
	long long sum=0;
	int r=0;
	vector<int> ans;
	for(int i=0;i<v.size();i++)
	{
		while(r<v.size()&&sum<l) {sum+=v[r].first; r++;}
		if(sum<=u&&sum>=l)
		{
			for(int j=i;j<r;j++)
				ans.push_back(v[j].second);
			return ans;
		}
		sum-=v[i].first;
		if(sum<0) sum=0;
	}
	return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:15: 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<w.size();i++)
      |              ~^~~~~~~~~
molecules.cpp:14:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for(int i=0;i<v.size();i++)
      |              ~^~~~~~~~~
molecules.cpp:16:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |   while(r<v.size()&&sum<l) {sum+=v[r].first; r++;}
      |         ~^~~~~~~~~

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