1 #include<stdio.h>
2 #include<math.h>
3 #define N 5
4 int n;
5 int a[N][N];
6 void show(){
7 int i, j;
8 for(i=0; i<n; i++){
9 for(j=0; j<n; j++){
10 printf("%3d", a[i][j]);
11 }
12 printf("\n");
13 }
14 }
15
16 void reverse(){
17 int i, j;
18 for(i=0; i<n; i++){
19 for(j=i+1; j<n; j++){
20 int t=a[i][j];
21 a[i][j]=a[j][i];
22 a[j][i]=t;
23 }
24 }
25 }
26 int main(){
27 //生成原始矩阵
28
29 int i, j;
30 scanf("%d", &n);
31 for(i=0; i<n; i++){
32 for(j=0; j<n; j++){
33 a[i][j]= i * n + j + 1;
34 }
35 }
36 printf("The original matrix is:\n");
37 show();
38 printf("The changed matrix is:\n");
39 reverse();
40 show();
41
42 }
