Submission #172342

#	Time	Username	Problem	Language	Result	Execution time	Memory
172342		mohammad	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	89 ms	6252 KiB

molecules

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*/
 
#include<bits/stdc++.h>
#include "molecules.h"
using namespace std;
 
typedef long long ll ;
const ll oo = 1e13 ;
const double PI = acos(-1) ;
const ll M = 1e9 + 7  ;

vector<pair<int,int>> v;
ll sum = 0 ;
vector<int> ans;

vector<int> find_subset(int l, int u, vector<int> w) {
	int idx = 0;
	for(int i = 0 ; i < w.size() ; ++i) v.push_back({w[i] , i});
	sort(v.begin(), v.end());
	for(int i = 0 ; i < w.size() ; ++i){
		sum += v[i].first ;
		while(sum > u) sum -= v[idx++].first;
		if(sum >= l){
			for(int j = idx ; j <= i ; ++j) ans.push_back(v[j].second);
			break;
		}
	}
	return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:35:20: 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:37:20: 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