제출 #1324715

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1324715		kasamchi	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	34 ms	4112 KiB

molecules

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

vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();
    vector<pair<int, int>> v;
    for (int i = 0; i < n; i++) {
        v.push_back(make_pair(w[i], i));
    }
    sort(v.begin(), v.end());

    if (v[0].first > u) {
        return vector<int>();
    } else {
        int ll = 0, rr = 0;
        long long sum = 0;
        while (rr < n && sum < l) {
            sum += v[rr].first, rr++;
        }
        if (sum < l) {
            return vector<int>();
        } else if (sum <= u) {
            vector<int> ans;
            for (int i = 0; i < rr; i++) {
                ans.push_back(v[i].second);
            }
            return ans;
        } else {
            sum -= v[rr - 1].first, rr--;
            int ll = 0;
            bool ok = false;
            while (rr < n) {
                while (sum < l) {
                    sum += v[rr].first, rr++;
                }
                if (sum <= u) {
                    ok = true;
                    break;
                }
                while (sum > u) {
                    sum -= v[ll].first, ll++;
                }
                if (sum >= l) {
                    ok = true;
                    break;
                }
            }
            if (!ok) {
                return vector<int>();
            } else {
                vector<int> ans;
                for (int i = ll; i < rr; i++) {
                    ans.push_back(v[i].second);
                }
                return ans;
            }
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

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