結果
問題 | No.43 野球の試合 |
ユーザー | fujisu |
提出日時 | 2015-03-09 23:11:25 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 111 ms / 5,000 ms |
コード長 | 3,439 bytes |
コンパイル時間 | 2,609 ms |
コンパイル使用メモリ | 78,320 KB |
実行使用メモリ | 43,532 KB |
最終ジャッジ日時 | 2024-06-24 16:59:42 |
合計ジャッジ時間 | 3,837 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 51 ms
37,004 KB |
testcase_01 | AC | 50 ms
36,628 KB |
testcase_02 | AC | 51 ms
36,700 KB |
testcase_03 | AC | 50 ms
36,784 KB |
testcase_04 | AC | 50 ms
36,568 KB |
testcase_05 | AC | 50 ms
36,828 KB |
testcase_06 | AC | 51 ms
36,712 KB |
testcase_07 | AC | 111 ms
43,532 KB |
testcase_08 | AC | 50 ms
36,684 KB |
testcase_09 | AC | 52 ms
36,700 KB |
testcase_10 | AC | 52 ms
36,948 KB |
ソースコード
import java.io.IOException; import java.util.Arrays; import java.util.InputMismatchException; public class Main { int n; char[][] c; int min; void backtrack(int x, int y) { if (n <= y) { min = Math.min(min, check()); return; } int nx = x + 1; int ny = y; if (n <= nx) { ny++; nx = ny; } if (c[y][x] != '-') { backtrack(nx, ny); } else { c[y][x] = 'o'; c[x][y] = 'x'; backtrack(nx, ny); c[y][x] = 'x'; c[x][y] = 'o'; backtrack(nx, ny); c[y][x] = c[x][y] = '-'; } } int check() { class D implements Comparable<D> { int id, score, rank; public D(int id) { this.id = id; this.score = 0; this.rank = 0; } public int compareTo(D o) { return o.score - this.score; } } D[] d = new D[n]; for (int i = 0; i < n; i++) { d[i] = new D(i); } for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { if (c[i][j] == 'o') { d[i].score++; } } } Arrays.sort(d); d[0].rank = 1; for (int i = 1; i < n; i++) { if (d[i].score == d[i - 1].score) { d[i].rank = d[i - 1].rank; } else { d[i].rank = d[i - 1].rank + 1; } } for (int i = 0; i < n; i++) { if (d[i].id == 0) { return d[i].rank; } } return -1; } void run() { MyScanner sc = new MyScanner(); n = sc.nextInt(); c = new char[n][]; for (int i = 0; i < n; i++) { c[i] = sc.next().toCharArray(); } min = 100; backtrack(0, 0); System.out.println(min); } public static void main(String[] args) { new Main().run(); } public void mapDebug(int[][] a) { System.out.println("--------map display---------"); for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[i].length; j++) { System.out.printf("%3d ", a[i][j]); } System.out.println(); } System.out.println("----------------------------" + '\n'); } class MyScanner { int read() { try { return System.in.read(); } catch (IOException e) { throw new InputMismatchException(); } } boolean isSpaceChar(int c) { return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1; } boolean isEndline(int c) { return c == '\n' || c == '\r' || c == -1; } int nextInt() { return Integer.parseInt(next()); } int[] nextIntArray(int n) { int[] array = new int[n]; for (int i = 0; i < n; i++) array[i] = nextInt(); return array; } long nextLong() { return Long.parseLong(next()); } long[] nextLongArray(int n) { long[] array = new long[n]; for (int i = 0; i < n; i++) array[i] = nextLong(); return array; } double nextDouble() { return Double.parseDouble(next()); } double[] nextDoubleArray(int n) { double[] array = new double[n]; for (int i = 0; i < n; i++) array[i] = nextDouble(); return array; } String next() { int c = read(); while (isSpaceChar(c)) c = read(); StringBuilder res = new StringBuilder(); do { res.appendCodePoint(c); c = read(); } while (!isSpaceChar(c)); return res.toString(); } String[] nextStringArray(int n) { String[] array = new String[n]; for (int i = 0; i < n; i++) array[i] = next(); return array; } String nextLine() { int c = read(); while (isEndline(c)) c = read(); StringBuilder res = new StringBuilder(); do { res.appendCodePoint(c); c = read(); } while (!isEndline(c)); return res.toString(); } } }