結果
問題 | No.402 最も海から遠い場所 |
ユーザー | uwi |
提出日時 | 2016-07-23 00:11:03 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,791 ms / 3,000 ms |
コード長 | 4,008 bytes |
コンパイル時間 | 5,303 ms |
コンパイル使用メモリ | 89,168 KB |
実行使用メモリ | 358,912 KB |
最終ジャッジ日時 | 2024-11-06 13:54:25 |
合計ジャッジ時間 | 14,338 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 52 ms
37,100 KB |
testcase_01 | AC | 53 ms
37,184 KB |
testcase_02 | AC | 58 ms
37,336 KB |
testcase_03 | AC | 53 ms
36,828 KB |
testcase_04 | AC | 53 ms
37,156 KB |
testcase_05 | AC | 52 ms
37,104 KB |
testcase_06 | AC | 53 ms
37,184 KB |
testcase_07 | AC | 53 ms
37,144 KB |
testcase_08 | AC | 52 ms
36,676 KB |
testcase_09 | AC | 53 ms
37,112 KB |
testcase_10 | AC | 52 ms
36,904 KB |
testcase_11 | AC | 54 ms
37,228 KB |
testcase_12 | AC | 54 ms
37,044 KB |
testcase_13 | AC | 103 ms
40,612 KB |
testcase_14 | AC | 87 ms
39,104 KB |
testcase_15 | AC | 185 ms
45,864 KB |
testcase_16 | AC | 194 ms
48,364 KB |
testcase_17 | AC | 985 ms
179,520 KB |
testcase_18 | AC | 1,301 ms
135,520 KB |
testcase_19 | AC | 1,791 ms
358,912 KB |
testcase_20 | AC | 1,032 ms
116,080 KB |
testcase_21 | AC | 1,326 ms
276,936 KB |
ソースコード
package contest; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayDeque; import java.util.Arrays; import java.util.InputMismatchException; import java.util.Queue; public class N402 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(), m = ni(); char[][] map = nm(n,m); int[][] d = new int[n+2][m+2]; for(int i = 0;i < n+2;i++){ Arrays.fill(d[i], 99999999); } Queue<Integer> q = new ArrayDeque<>(); for(int i = 0;i < n;i++){ for(int j = 0;j < m;j++){ if(map[i][j] == '.'){ q.add(i+1<<15|j+1); d[i+1][j+1] = 0; } } } for(int i = 0;i < n+2;i++){ q.add(i<<15|0); d[i][0] = 0; q.add(i<<15|m+1); d[i][m+1] = 0; } for(int i = 0;i < m+2;i++){ q.add(0<<15|i); d[0][i] = 0; q.add(n+1<<15|i); d[n+1][i] = 0; } int max = 0; while(!q.isEmpty()){ int cur = q.poll(); int r = cur>>>15, c = cur&(1<<15)-1; max = Math.max(max, d[r][c]); for(int nr = r-1;nr <= r+1;nr++){ for(int nc = c-1;nc <= c+1;nc++){ if(nr >= 0 && nr < n+2 && nc >= 0 && nc < m+2 && d[nr][nc] > d[r][c] + 1){ d[nr][nc] = d[r][c] + 1; q.add(nr<<15|nc); } } } } out.println(max); } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new N402().run(); } private byte[] inbuf = new byte[1024]; private int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }