Submission #331023

#	Time	Username	Problem	Language	Result	Execution time	Memory
331023		Drew_	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	62 ms	6240 KiB

molecules

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

#define ll long long
#define ii pair<int,int>
#define pb push_back
#define f1 first
#define s2 second

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<ii> v;
    for (int i = 0; i < w.size(); ++i)
    {
    	if (w[i] > u) continue;
    	else if (l <= w[i] && w[i] <= u)
    	{
    		vector<int> res;
    		res.pb(i);
    		return res;
    	}
    	else
    	{
    		v.pb({w[i], i});
    	}
    }

   	sort(v.begin(), v.end());
   	queue<ii> q;
   	ll val = 0;

   	for (ii x : v)
   	{
   		val += x.f1;
   		q.push(x);

   		while (!q.empty() && val > u)
   		{
   			val -= q.front().f1;
   			q.pop();
   		}

   		if (l <= val && val <= u)
   		{
   			vector<int> res;
   			while (!q.empty())
   				res.pb(q.front().s2), q.pop();
   			return res;
   		}
   	}

    return vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     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