제출 #1072879

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1072879		Double_Slash	Minerals (JOI19_minerals)	C++17	0 / 100	0 ms	344 KiB

minerals

#include "minerals.h"
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

void dfs(int n, const vector<int> &a, const vector<int> &b) {
    if (n == 1) {
        Answer(a.front(), b.front());
        return;
    }
    int m = (n + 1) >> 1;
    vector<int> al, ar, bl, br;
    for (int i = 0; i < m; ++i) {
        al.emplace_back(a[i]);
        Query(a[i]);
    }
    for (int i = m; i < n; ++i) {
        ar.emplace_back(a[i]);
    }
    for (int i = 0; i < n; ++i) {
        if (Query(b[i]) == m) {
            bl.emplace_back(b[i]);
        } else {
            br.emplace_back(b[i]);
        }
        Query(b[i]);
    }
    for (int i = 0; i < m; ++i) {
        Query(a[i]);
    }
    dfs(m, al, bl);
    dfs(n - m, ar, br);
}

void Solve(int N) {
    mt19937 gen(chrono::high_resolution_clock::now().time_since_epoch().count());
    deque<int> arr(N << 1);
    vector<int> a, b;
    iota(arr.begin(), arr.end(), 1);
    shuffle(arr.begin(), arr.end(), gen);
    while (not arr.empty()) {
        int x = arr.back();
        arr.pop_back();
        if (Query(x) == a.size()) {
            b.emplace_back(x);
            Query(x);
            while (b.size() < a.size()) {
                int y = arr.back();
                arr.pop_back();
                if (Query(y) == a.size()) {
                    b.emplace_back(y);
                }
                Query(y);
                arr.push_front(y);
            }
            for (int y: a) Query(y);
            dfs(a.size(), a, b);
            a.clear(), b.clear();
        } else {
            a.emplace_back(x);
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

minerals.cpp: In function 'void Solve(int)':
minerals.cpp:45:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         if (Query(x) == a.size()) {
      |             ~~~~~~~~~^~~~~~~~~~~
minerals.cpp:51:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |                 if (Query(y) == a.size()) {
      |                     ~~~~~~~~~^~~~~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 25
• Subtask 3: 0 / 9
• Subtask 4: 0 / 30
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 10