二维数组排序错误问题

Question

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{    
int j, k;    
int tem;    
int run[3][3] =    {{2,6,5},{7,8,9},{1,3,4}};    
for (j = 0;j < 3;j++)    
{        
for (k = 0;k < 3;k++)            
printf("%d ", run[j][k]);    
}    
printf("\n");    
for (j = 0;j < 3;j++)    
{        
for (k = 0;k < 3;k++)                
if (run[j][k] > run[j][k + 1])                
{                    
tem = run[j][k];                    
run[j][k] = run[j][k+1];                    
run[j][k+1] = tem;                
}    
}    
for (j = 0;j < 3;j++)    
{        
for (k = 0;k < 3;k++)        
{            
printf("%d ", run[j][k]);        
}    
}    
getchar;    
getchar;    
printf("\n");    
return 0;
}

```

Answer 1

for (k = 0;k < 3;k++)
if (run[j][k] > run[j][k + 1])
这里k+1就数组越界了啊。数组的最大下标识2，但当k=2时，k+1就是3