10计本算法实验棋盘覆盖问题(3)

import java.util.Scanner;

public class ChessBoard1 {

public static int [][]board;

public static void chessboard(int tr,int tc,int dr,int dc,int size) {

if(size==1)return;

int s=size/2;

if(dr<tr+s&&dc<tc+s)

{

board[tr+s][tc+s-1]=1;

board[tr+s-1][tc+s]=1;

board[tr+s][tc+s]=1;

chessboard(tr,tc,dr,dc,s);

chessboard(tr+s,tc,tr+s,tc+s-1,s);

chessboard(tr,tc+s,tr+s-1,tc+s,s);

chessboard(tr+s,tc+s,tr+s,tc+s,s);

}

if(dr<tr+s&&dc>=tc+s)

{

}

if(dr>=tr+s&&dc<tc+s)

{

} board[tr+s-1][tc+s-1]=3; board[tr+s-1][tc+s]=3; board[tr+s][tc+s]=3; chessboard(tr+s,tc,dr,dc,s); chessboard(tr,tc,tr+s-1,tc+s-1,s); chessboard(tr,tc+s,tr+s-1,tc+s,s); chessboard(tr+s,tc+s,tr+s,tc+s,s); board[tr+s-1][tc+s-1]=2; board[tr+s][tc+s-1]=2; board[tr+s][tc+s]=2; chessboard(tr,tc+s,dr,dc,s); chessboard(tr,tc,tr+s-1,tc+s-1,s); chessboard(tr+s,tc,tr+s,tc+s-1,s); chessboard(tr+s,tc+s,tr+s,tc+s,s);

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