# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1043934 | 2024-08-05T04:44:15 Z | AC2K | 산악 구조대 (JOI13_mountain) | C++17 | 0 ms | 0 KB |
#include <bits/stdc++.h> #include "grader.h" using namespace std; void Rescue(int R, int C, int RS, int CS, int X) { int upper = max(RS - 1, R - RS) + max(CS - 1, C - CS), lower = 0; vector<vector<pair<int,int>>> points(upper + 1); for (int i = 1; i <= R; ++i) { for (int j = 1; j <= C; ++j) { points[abs(i - RS) + abs(j - CS)].emplace_back(i, j); } } auto calc = [&](int d) { int res = 1e9; for (auto [i, j] : points[d]) { if (j <= 0 || j > C) continue; int H = Measure(i, j); if (H == X) { Pinpoint(i, j); goto escape; return res; } res = min(res, H); } return res; }; calc(upper); calc(lower); while (upper - lower > 1) { int mid = (upper + lower) / 2; int H = calc(mid); if (H == -1) return; (H >= X ? lower : upper) = mid; } calc(lower); calc(upper); escape: return; }