给定矩阵的C程序以交换对角线元素

for (i=0;i
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#include
main (){
   int i,j,m,n,a;
   static int ma[10][10];
   printf ("Enter the order of the matrix m and n
");
   scanf ("%dx%d",&m,&n);
   if (m==n){
      printf ("Enter the co-efficients of the matrix
");
      for (i=0;i
");
      for (i=0;i
");
      }
      for (i=0;i
");
      printf ("Main & secondary diagonal
");
      for (i=0;i
");
      }
   }
   else
      printf ("The given order is not square matrix
");
}

Run 1:
Enter the order of the matrix m and n
3x3
Enter the co-efficient of the matrix
1
2
3
4
5
6
7
8
9
The given matrix is
1 2 3
4 5 6
7 8 9
Matrix after changing the
Main & secondary diagonal
3 2 1
4 5 6
9 8 7

Run 2:
Enter the order of the matrix m and n
4x3
The given order is not square matrix