Submission #849753

#	Time	Username	Problem	Language	Result	Execution time	Memory
849753		chilengaming	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	45 ms	6292 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> ans;
    vector<pair<int, int>> ww;
    for(int i=0;i<w.size();i++)
    {
        ww.push_back({w[i],i});
    }
    sort(ww.begin(), ww.end());
    int j=0;
    long long sum=0;
    for (int i=0;i<ww.size();i++)
    {
        sum+=ww[i].first;
        while (sum>u) sum-=ww[j++].first;
        if (sum>=l)
        {
            for (int k=j;k<=i;k++)
                ans.push_back(ww[k].second);
            break;
        }
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:18: 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:16:19: 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 |     for (int i=0;i<ww.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