Submission #1265478

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265478		gustavo_d	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	33 ms	3656 KiB

molecules

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

typedef long long ll;

const int MAXN = 2e5;

pair<int, int> sortedW[MAXN];

vector<int> find_subset(int l, int r, vector<int> w) {
    int n = (int)w.size();
    for (int i=0; i<n; i++) sortedW[i] = {w[i], i};
    sort(sortedW, sortedW + n);
    ll sum1 = 0, sum2 = 0;
    for (int k=1; k<=n; k++) {
        sum1 += sortedW[k-1].first; sum2 += sortedW[n-k].first;
        vector<int> res;
        if (l <= sum1 and sum1 <= r) {
            for (int i=0; i<k; i++) res.push_back(sortedW[i].second);
        }
        if (sum1 <= l and sum2 >= l and res.empty()) {
            for (int pt=1; pt<=k; pt++) {
                sum1 += sortedW[n-pt].first - sortedW[k-pt].first;
                if (l <= sum1 and sum1 <= r) {
                    for (int i=0; i<k-pt; i++) res.push_back(sortedW[i].second);
                    for (int i=1; i<=pt; i++) res.push_back(sortedW[n-i].second);
                    break;
                }
            }
        }
        if (!res.empty()) return res;
    }
    return vector<int>(0);
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 23 / 23
• Subtask 6: 31 / 31