Submission #132932

#	Time	Username	Problem	Language	Result	Execution time	Memory
132932		wzy	Detecting Molecules (IOI16_molecules)	C++11	100 / 100	66 ms	6380 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
	vector<pii> v;
	for(int i = 0 ; i < w.size() ; i ++) v.push_back({w[i] , i});
	sort(v.begin() , v.end());
	int lx = 0 ;
	long long curr = 0;
	for(int i = 0 ; i < w.size(); i ++){
		curr += (long long) v[i].first;
		while(curr > (long long)u && lx != (i)){
			curr -= (long long) v[lx].first;
			lx++;
		}	
		if(curr <= (long long) u && curr >= (long long)l){
			vector<int> p ;
			for(int j = lx ; j <= i ; j ++){
				p.push_back(v[j].second);
			}
			return p;
		}
	}
	return vector<int>();
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:7:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < w.size() ; i ++) v.push_back({w[i] , i});
                  ~~^~~~~~~~~~
molecules.cpp:11:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  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