結果
問題 | No.124 門松列(3) |
ユーザー |
👑 |
提出日時 | 2019-05-29 05:22:59 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 20 ms / 5,000 ms |
コード長 | 2,705 bytes |
コンパイル時間 | 717 ms |
コンパイル使用メモリ | 119,612 KB |
実行使用メモリ | 26,640 KB |
最終ジャッジ日時 | 2024-06-22 01:28:07 |
合計ジャッジ時間 | 1,835 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 26 |
ソースコード
import std.conv, std.functional, std.range, std.stdio, std.string;import std.algorithm, std.array, std.bigint, std.complex, std.container, std.math, std.numeric, std.regex, std.typecons;import core.bitop;class EOFException : Throwable { this() { super("EOF"); } }string[] tokens;string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }int readInt() { return readToken.to!int; }long readLong() { return readToken.to!long; }real readReal() { return readToken.to!real; }bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } }bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } }int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1;(unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; }int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); }int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); }enum L = 10;int H, W;int[][] M;void main() {try {for (; ; ) {W = readInt();H = readInt();M = new int[][](H, W);foreach (x; 0 .. H) foreach (y; 0 .. W) {M[x][y] = readInt();}auto q = new int[H * W * L * L * 4];int qHead, qTail;auto d = new int[][][][](H, W, L, L);foreach (x; 0 .. H) foreach (y; 0 .. W) {foreach (a; 0 .. L) foreach (b; 0 .. L) {d[x][y][a][b] = -1;}}d[0][0][0][M[0][0]] = 0;q[qTail++] = 0;q[qTail++] = 0;q[qTail++] = 0;q[qTail++] = M[0][0];int ans = -1;for (; qHead != qTail; ) {const x = q[qHead++];const y = q[qHead++];const a = q[qHead++];const b = q[qHead++];if (x == H - 1 && y == W - 1) {ans = d[x][y][a][b];break;}void update(int xx, int yy) {const c = M[xx][yy];if (a == 0 || (((a < b && b > c) || (a > b && b < c)) && (a != c))) {if (d[xx][yy][b][c] == -1 || d[xx][yy][b][c] > d[x][y][a][b] + 1) {d[xx][yy][b][c] = d[x][y][a][b] + 1;q[qTail++] = xx;q[qTail++] = yy;q[qTail++] = b;q[qTail++] = c;}}}if (x + 1 < H) update(x + 1, y);if (y + 1 < W) update(x, y + 1);if (x - 1 >= 0) update(x - 1, y);if (y - 1 >= 0) update(x, y - 1);}writeln(ans);}} catch (EOFException e) {}}