結果
問題 | No.424 立体迷路 |
ユーザー |
|
提出日時 | 2016-09-22 22:49:40 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,068 bytes |
コンパイル時間 | 1,470 ms |
コンパイル使用メモリ | 167,592 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-05 07:03:01 |
合計ジャッジ時間 | 2,307 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 21 |
ソースコード
#define _CRT_SECURE_NO_WARNINGS#define _USE_MATH_DEFINES#include <bits/stdc++.h>using namespace std;using i32 = int32_t; using i64 = int64_t; using f64 = double_t; using str = string;template <typename T> using vec = vector<T>;template <typename T> using heap = priority_queue<T, vec<T>, greater<T>>;#define times(n, i) for (i32 i = 0; i < (n); ++i)#define range(n, m, i) for (i32 i = (n); i < (m); ++i)#define upto(n, m, i) for (i32 i = (n); i <= (m); ++i)#define downto(n, m, i) for (i32 i = (n); i >= (m); --i)#define foreach(xs, x) for (auto &x : (xs))#define all(xs) (xs).begin(), (xs).end()#define sortall(xs) sort(all(xs))#define reverseall(xs) reverse(all(xs))#define uniqueall(xs) (xs).erase(unique(all(xs)), (xs).end())#define maximum(xs) (*max_element(all(xs)))#define minimum(xs) (*min_element(all(xs)))#define even(x) (((x) & 1) == 0)#define odd(x) (((x) & 1) == 1)#define append emplace_backconst i64 MOD = 1000000007;i32 h, w, sx, sy, gx, gy;i32 m[50][50];bool fp[50][50];i32 ox[4] = { -1, 0, 1, 0 };i32 oy[4] = { 0, -1, 0, 1 };bool rec(i32 x, i32 y) {fp[x][y] = true;if (x == gx && y == gy)return true;times(4, i) {i32 nx = x+ox[i], ny = y+oy[i];if (0 <= nx && nx < w && 0 <= ny && ny < h) {if (!fp[nx][ny] && abs(m[nx][ny] - m[x][y]) <= 1) {fp[nx][ny] = true;if (rec(nx, ny))return true;}}i32 mx = x + ox[i]*2, my = y + oy[i]*2;if (0 <= mx && mx < w && 0 <= my && my < h) {if (!fp[mx][my] && m[mx][my] == m[x][y] && m[nx][ny] < m[x][y]) {fp[mx][my] = true;if (rec(mx, my))return true;}}}return false;}i32 main(){cin >> h >> w >> sy >> sx >> gy >> gx;sy--; sx--; gy--; gx--;times(h, i) {str s; cin >> s;times(w, j) {m[j][i] = s[j]-'0';}}cout << (rec(sx, sy) ? "YES" : "NO") << endl;return 0;}