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  1. #include <stdio.h>
  2.  
  3. const int N = 1000;
  4.  
  5. // TODO: implement this function
  6. void rotate_ccw(int n, int a[N][N]) {
  7.     // your code here
  8.     int temp[N][N];
  9.     for (int i = 0; i < n; i++) {
  10.         for (int j = 0; j < n; j++) {
  11.             temp[i][j] = a[i][j];
  12. 			printf("a[%d][%d]:%d ", i, j, temp[i][j]);
  13.         }
  14. 		printf("\n");
  15.     }
  16. 	printf("\n");
  17.     for (int i = 0; i < n; i++) {
  18.         for (int j = 0; j < n; j++) {
  19.             a[i][j] = temp[j][n - i - 1];
  20. 			printf("a[%d][%d]:%d ", j, n - i - 1, temp[j][n - i - 1]);
  21.         }
  22. 		printf("\n");
  23.     }
  24. }
  25.  
  26. int main(void) {
  27.     int n;
  28.     int a[N][N];
  29.  
  30.     scanf("%d", &n);
  31.     for (int i = 0; i < n; ++i) {
  32.         for (int j = 0; j < n; ++j) {
  33.             scanf("%d", &a[i][j]);
  34.         }
  35.     }
  36.  
  37.     rotate_ccw(n, a);
  38. /*
  39.     for (int i = 0; i < n; ++i) {
  40.         for (int j = 0; j < n; ++j) {
  41.             printf("a[%d][%d]:%d ", i, j, a[i][j]);
  42.         }
  43.         printf("\n");
  44.     }
  45. */
  46. }
  47.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin
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3
1 2 3
4 5 6
7 8 9
stdout
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a[0][0]:1 a[0][1]:2 a[0][2]:3 
a[1][0]:4 a[1][1]:5 a[1][2]:6 
a[2][0]:7 a[2][1]:8 a[2][2]:9 

a[0][2]:3 a[1][2]:6 a[2][2]:9 
a[0][1]:2 a[1][1]:5 a[2][1]:8 
a[0][0]:1 a[1][0]:4 a[2][0]:7
https://ideone.com/kISRji
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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