Submission #372692

#	Time	Username	Problem	Language	Result	Execution time	Memory
372692		hoanghq2004	산악 구조대 (JOI13_mountain)	C++14	0 / 100	9 ms	2540 KiB

mountain

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

using namespace std;

void Rescue(int n, int m, int RS, int CS, int X) {
    map <int, vector <pair <int, int> > > mp;
    vector <pair <int, int> > block[(n + 10) * (m + 10)];
    vector <vector <int> > height(n + 10, vector <int> (m + 10, -1));
    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= m; ++j) {
            mp[abs(i - RS) + abs(j - CS)].push_back({i, j});
        }
    }
    int sz = 0;
    for (auto [id, vcell]: mp) block[sz++] = vcell;
    auto ask = [&](int i, int j) {
        if (height[i][j] != -1) return height[i][j];
        height[i][j] = Measure(i, j);
        if (height[i][j] == X) Pinpoint(i, j);
        return height[i][j];
    };
    int L = 0, R = sz - 1;
    while (R - L > 1) {
        int mid = L + R >> 1;
        if (ask(block[mid].front().first, block[mid].front().second) < X) L = mid;
        else R = mid;
    }
    for (auto [i, j]: block[L]) ask(i, j);
    for (auto [i, j]: block[R]) ask(i, j);
}

Compilation message (stderr)

mountain.cpp: In function 'void Rescue(int, int, int, int, int)':
mountain.cpp:16:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   16 |     for (auto [id, vcell]: mp) block[sz++] = vcell;
      |               ^
mountain.cpp:25:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |         int mid = L + R >> 1;
      |                   ~~^~~
mountain.cpp:29:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   29 |     for (auto [i, j]: block[L]) ask(i, j);
      |               ^
mountain.cpp:30:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   30 |     for (auto [i, j]: block[R]) ask(i, j);
      |               ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80