棋盘覆盖问题

<1>问题：棋盘覆盖问题

<2>代码：

#include<iostream>
using namespace std;
int Board[4][4] = {0};
int tile = 1;
void ChessBoard(int tr,int tc,int dr,int dc,int size)
{
if(size == 1)
return;
int t = tile++;
int s = size/2;
if(dr<tr+s && dc<tc+s)
ChessBoard(tr,tc,dr,dc,s);
else
{
Board[tr+s-1][tc+s-1] = t;
ChessBoard(tr,tc,tr+s-1,tc+s-1,s);
}

if(dr<tr+s && dc>=tc+s)
ChessBoard(tr,tc+s,dr,dc,s);
else
{
Board[tr+s-1][tc+s] = t;
ChessBoard(tr,tc+s,tr+s-1,tc+s,s);
}

if(dr>=tr+s && dc<tc+s)
ChessBoard(tr+s,tc,dr,dc,s);
else
{
Board[tr+s][tc+s-1] = t;
ChessBoard(tr+s,tc,tr+s-1,tc+s,s);
}

if(dr>=tr+s && dc>=tc+s)
ChessBoard(tr+s,tc+s,dr,dc,s);
else
{
Board[tr+s][tc+s] = t;
ChessBoard(tr+s,tc,tr+s,tc+s,s);
}
}

void main()
{
cout<<endl<<"覆盖前,棋盘状态:"<<endl;
for(int i = 0;i < 4;i++)
{
for(int j = 0;j < 4;j++)
cout<<Board[i][j]<<" ";
cout<<endl;
}
cout<<endl<<"覆盖后,棋盘状态:"<<endl;
ChessBoard(0,0,2,3,4);
for(i = 0;i < 4;i++)
{
for(int j = 0;j < 4;j++)
cout<<Board[i][j]<<" ";
cout<<endl;
}
}

<3>运行结果截图：