Submission #819527

#	Time	Username	Problem	Language	Result	Execution time	Memory
819527		12345678	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	44 ms	5272 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<int> ans;
    deque<pair<int, int>> dq;
    vector<pair<int, int>> v;
    long long sm=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++)
    {
        dq.push_back(v[i]);
        sm+=v[i].first;
        if (sm<l) continue;
        while (sm>u) sm-=dq.front().first, dq.pop_front();
        if (sm>=l)
        {
            while (!dq.empty()) ans.push_back(dq.front().second), dq.pop_front();
            return ans;
        }
    }
    return vector<int> (0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:11:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for (int i=0; i<w.size(); i++) v.push_back({w[i], i});
      |                   ~^~~~~~~~~
molecules.cpp:13:20: 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