제출 #1132190

#제출 시각아이디문제언어결과실행 시간메모리
1132190lopkusDetecting Molecules (IOI16_molecules)C++20
0 / 100
0 ms320 KiB
#include <bits/stdc++.h>

#include "molecules.h"

using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    sort(w.begin(), w.end());
    int n = w.size();
    for(int i = 0; i < n; i++) {
        if(w[i] >= l && w[i] <= u) {
            return {i};
        }
    }
    int idx = - 1;
    for(int i = 0; i < n; i++) {
        if(w[i] < l) {
            idx = i;
        }
    }
    if(idx == - 1) {
        return {};
    }
    set<int> s;
    s.insert(w[idx]);
    for(int i = idx; i >= 0; i--) {
        if(u - l >= w[idx] - w[i]) {
            s.insert(w[i]);
        }
    }
    vector<int> ans;
    while(l > 0) {
        auto it = s.lower_bound(l);
        if(it != s.end() && *it <= u) {
            ans.push_back(*it);
            l -= *it;
            u -= *it;
            s.erase(it);
            continue;
        }
        it--;
        if(it != s.end()) {
            ans.push_back(*it);
            l -= *it;
            u -= *it;
            s.erase(it);
        }
        else {
            return {};
        }
    }
    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
      |         ^~~~
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