結果

問題 No.422 文字列変更 (Hard)
コンテスト
ユーザー hermione17
提出日時 2016-09-09 23:46:06
言語 Java
(openjdk 23)
結果
WA  
実行時間 -
コード長 3,218 bytes
コンパイル時間 3,380 ms
コンパイル使用メモリ 77,720 KB
実行使用メモリ 564,844 KB
最終ジャッジ日時 2024-11-17 06:38:55
合計ジャッジ時間 35,286 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample WA * 1
other AC * 1 WA * 6 RE * 8 MLE * 1
権限があれば一括ダウンロードができます

ソースコード

diff # 

import java.util.Scanner;


public class Y422 {
	Y422() {
		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];
					state = from[S.length][T.length][a][b];
				}
			}
		}
		
		
		char[] S_ans = new char[n+m];
		char[] T_ans = new char[n+m];
		int len = 0;
		
		while (state != null) {
			if (state[2] == 1) {
				S_ans[len] = '-';
			} else {
				S_ans[len] = S[state[0]];
			}
			if (state[3] == 1) {
				T_ans[len] = '-';
			} else {
				T_ans[len] = T[state[1]];
			}
			len++;
			state = from[state[0]][state[1]][state[2]][state[3]];
		}

		System.out.println(cost);

		for (int i = len - 1; i >= 0; i--) {
			System.out.print(S_ans[i]);
		}
		System.out.println("");
		for (int i = len - 1; i >= 0; i--) {
			System.out.print(T_ans[i]);
		}
		System.out.println("");
	}
	public static void main(String argv[]) {
		new Y422();
	}
}
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