結果

問題 No.422 文字列変更 (Hard)
ユーザー hermione17hermione17
提出日時 2016-09-09 23:53:30
言語 Java21
(openjdk 21)
結果
MLE  
実行時間 -
コード長 3,489 bytes
コンパイル時間 3,184 ms
コンパイル使用メモリ 77,792 KB
実行使用メモリ 570,652 KB
最終ジャッジ日時 2024-04-28 14:11:54
合計ジャッジ時間 31,464 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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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 100 ms
40,176 KB
testcase_01 AC 1,737 ms
345,112 KB
testcase_02 AC 2,200 ms
418,748 KB
testcase_03 AC 1,633 ms
336,604 KB
testcase_04 AC 1,696 ms
345,204 KB
testcase_05 AC 2,214 ms
423,736 KB
testcase_06 MLE -
testcase_07 WA -
testcase_08 WA -
testcase_09 AC 2,334 ms
453,316 KB
testcase_10 AC 2,402 ms
488,516 KB
testcase_11 AC 1,767 ms
346,892 KB
testcase_12 AC 1,618 ms
334,652 KB
testcase_13 AC 1,556 ms
340,116 KB
testcase_14 AC 1,690 ms
343,940 KB
testcase_15 AC 1,728 ms
343,296 KB
testcase_16 AC 1,739 ms
346,724 KB
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ソースコード

diff # 

import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Scanner;


public class Y422 {
	Y422() throws IOException {
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		int m = sc.nextInt();
		char[] S = sc.next().toCharArray();
		char[] T = sc.next().toCharArray();

		int[][][][] dp = new int[n+1][m+1][2][2];
		int[][][][][] from = new int[n+1][m+1][2][2][];

		for (int i = 0; i <= S.length; i++) {
			for (int j = 0; j <= T.length; j++) {
				for (int a = 0; a < 2; a ++) {
					for (int b = 0; b < 2; b ++ ) {
						dp[i][j][a][b] = 100 * (n + m);
					}
				}
			}
		}
		
		dp[0][0][0][0] = 0;
				
		
		for (int i = 0; i < S.length; i++) {
			for (int j = 0; j < T.length; j++) {
				
				int change_cost = 5;
				if (S[i] == T[j]) change_cost = 0;

				int cost = change_cost + dp[i][j][0][0];
				{
					int[] tmp = { i, j, 0, 0 };
					dp[i+1][j+1][0][0] = cost;
					from[i+1][j+1][0][0] = tmp;
				}
				
				cost = change_cost + dp[i][j][0][1];
				if (cost < dp[i+1][j+1][0][0]) {
					int[] tmp = { i, j, 0, 1 };
					dp[i+1][j+1][0][0] = cost;
					from[i+1][j+1][0][0] = tmp;
				}
				
				cost = change_cost + dp[i][j][1][0];
				if (cost < dp[i+1][j+1][0][0]) {
					int[] tmp = { i, j, 1, 0 };
					dp[i+1][j+1][0][0] = cost;
					from[i+1][j+1][0][0] = tmp;
				}
				
				
				cost = 9 + dp[i+1][j][0][0];
				{
					int[] tmp = { i+1, j, 0, 0 };
					dp[i+1][j+1][1][0] = cost;
					from[i+1][j+1][1][0] = tmp;
				}
				
				cost = 2 + dp[i+1][j][1][0];
				if (cost < dp[i+1][j+1][1][0]) {
					int[] tmp = { i+1, j, 1, 0 };
					dp[i+1][j+1][1][0] = cost;
					from[i+1][j+1][1][0] = tmp;
				}

				cost = 9 + dp[i+1][j][0][1];
				if (cost < dp[i+1][j+1][1][0]) {
					int[] tmp = { i+1, j, 0, 1 };
					dp[i+1][j+1][1][0] = cost;
					from[i+1][j+1][1][0] = tmp;
				}
				
				
				cost = 9 + dp[i][j+1][0][0];
				{
					int[] tmp = { i, j+1, 0, 0 };
					dp[i+1][j+1][0][1] = cost;
					from[i+1][j+1][0][1] = tmp;
				}
				
				cost = 9 + dp[i][j+1][1][0];
				if (cost < dp[i+1][j+1][0][1]) {
					int[] tmp = { i, j+1, 1, 0 };
					dp[i+1][j+1][0][1] = cost;
					from[i+1][j+1][0][1] = tmp;
				}
				
				cost = 2 + dp[i][j+1][0][1];
				if (cost < dp[i+1][j+1][0][1]) {
					int[] tmp = { i, j+1, 0, 1 };
					dp[i+1][j+1][0][1] = cost;
					from[i+1][j+1][0][1] = tmp;
				}
			}
		}
		
		
		int cost = 100 * (n + m);
		int[] state = null;
		for (int a = 0; a < 2; a++) {
			for (int b = 0; b < 2; b++) {
				if (cost > dp[S.length][T.length][a][b]) {
					cost = dp[S.length][T.length][a][b];
					int[] tmp = {S.length, T.length, a, b};
					state = tmp;
				}
			}
		}
		
		
		char[] S_ans = new char[n+m];
		char[] T_ans = new char[n+m];
		int len = 0;
		
		while (state[0] != 0 || state[0] != 0) {
			int[] next = from[state[0]][state[1]][state[2]][state[3]];

			if (state[2] == 1) {
				S_ans[len] = '-';
			} else {
				S_ans[len] = S[next[0]];
			}
			if (state[3] == 1) {
				T_ans[len] = '-';
			} else {
				T_ans[len] = T[next[1]];
			}
			len++;
			state = next;
		}

		OutputStream os = new BufferedOutputStream(System.out);
		
		os.write(Integer.toString(cost).getBytes());
		os.write('\n');

		for (int i = len - 1; i >= 0; i--) {
			os.write(S_ans[i]);
		}
		os.write('\n');

		for (int i = len - 1; i >= 0; i--) {
			os.write(T_ans[i]);
		}
		os.write('\n');
	
		os.flush();
	}
	public static void main(String argv[]) throws IOException {
		new Y422();
	}
}
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