結果
問題 | No.424 立体迷路 |
ユーザー |
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提出日時 | 2016-09-23 08:31:05 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 20 ms / 2,000 ms |
コード長 | 2,927 bytes |
コンパイル時間 | 1,332 ms |
コンパイル使用メモリ | 167,720 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-05 07:08:28 |
合計ジャッジ時間 | 2,079 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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
/* {{{ Shinobu kawaii *//*______ __ _ __.' ____ \ [ | (_) [ || (___ \_| | |--. __ _ .--. .--. | |.--. __ __.____`. | .-. | [ | [ `.-. |/ .'`\ \| '/'`\ \[ | | || \____) | | | | | | | | | | || \__. || \__/ | | \_/ |,\______.'[___]|__][___][___||__]'.__.'[__;.__.' '.__.'_/*//* }}} */#include <bits/stdc++.h>using namespace std;// #define int long long//struct Fast {Fast(){std::cin.tie(0);ios::sync_with_stdio(false);}} fast;/* cpp template {{{ *//* short */#define pb push_back#define mp make_pair#define Fi first#define Se second#define ALL(v) (v).begin(), (v).end()#define X real()#define Y imag()/* REPmacro */#define REPS(i, a, n) for (int i = (a); i < (n); ++i)#define REP(i, n) REPS(i, 0, n)#define RREP(i, n) REPS(i, 1, n + 1)#define DEPS(i, a, n) for (int i = (a); i >= n; --i)#define DEP(i, n) DEPS(i, n, 0)/* debug */#define debug(x) cerr << x << " " << "(L:" << __LINE__ << ")" << '\n';/* typedef */typedef long long ll;typedef unsigned long long ull;typedef vector<int> vi;typedef vector<vi> vii;typedef vector<vii> viii;typedef pair<int, int> pii;typedef double D;typedef complex<D> P;/* const */const int INF = 1001001001;const ll LINF = 1001001001001001001ll;const int MOD = 1e9 + 7;const D EPS = 1e-9;const int dx[] = {0, 1, 0, -1, 1, -1, 1, -1}, dy[] = {1, 0, -1, 0, 1, -1, -1, 1};/* func */inline bool inside(int y, int x, int H, int W) {return y >= 0 && x >= 0 && y < H && x < W;}inline int in() {int x; std::cin >> x; return x;}template <typename T> void print(T x) {std::cout << x << '\n';}template <typename T>void print(std::vector<T>& v, std::string s = " ") {REP(i, v.size()) {if (i != 0) std::cout << s;std::cout << v[i];}std::cout << '\n';}/* }}} */int h, w;int sx, sy, gx, gy;int field[55][55];bool vis[55][55];const int ddx[] = {0, 2, 0, -2}, ddy[] = {2, 0, -2, 0};void dfs(int y = sx, int x = sy){vis[y][x] = true;if (y == gx && x == gy) {return;}REP(i, 4) {int ny = dy[i] + y, nx = dx[i] + x;if (vis[ny][nx]) continue;if (!inside(ny, nx, h, w)) continue;if (abs(field[ny][nx] - field[y][x]) == 1) {debug("po");dfs(ny, nx);}if (field[ny][nx] == field[y][x]) {debug("po");dfs(ny, nx);}}REP(i, 4) {int ny = ddy[i] + y, nx = ddx[i] + x;int cy = dy[i] + y, cx = dx[i] + x;if (vis[ny][nx]) continue;if (!inside(ny, nx, h, w)) continue;if (field[ny][nx] != field[y][x]) continue;if (field[cy][cx] >= field[y][x]) continue;debug("po");dfs(ny, nx);}}signed main(){scanf("%d%d", &h, &w);scanf("%d%d%d%d", &sx, &sy, &gx, &gy);sx--; sy--; gx--; gy--;REP(i, h) REP(j, w) scanf("%1d", &field[i][j]);dfs();print(vis[gx][gy] ? "YES" : "NO");return 0;}