Submission #388553

#	Time	Username	Problem	Language	Result	Execution time	Memory
388553		ParsaAlizadeh	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	67 ms	2644 KiB

molecules

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

vector<int> find_subset(int l, int r, vector<int> w) {
    vector<int> ind(w.size());
    iota(begin(ind), end(ind), 0);
    sort(begin(ind), end(ind), [&] (int i, int j) {
        return w[i] < w[j];
    });
    long long cur = 0;
    int ptr = 0;
    for (int i = 0; i < w.size(); i++) {
        cur += w[ind[i]];
        while (ptr < i && cur > r)
            cur -= w[ind[ptr++]];
        if (cur <= r && cur >= l)
            return vector<int>(begin(ind) + ptr, begin(ind) + i + 1);
    }
    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