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  1. #include <stdio.h>
  2.  
  3. typedef struct {
  4. 	int arr[4][4];
  5. } FourByFour;
  6.  
  7. FourByFour rotate(FourByFour m) {
  8.     FourByFour D;
  9.     for(int i = 0; i < 4; i ++ ){
  10.         for(int n = 0; n < 4; n++){
  11.             D.arr[i][n] = m.arr[n][3 - i];
  12.         }
  13.     }
  14.     return D;
  15. }
  16.  
  17. int main(void) {
  18. 	FourByFour S = {.arr = { { 1, 4, 10, 3 }, { 0, 6, 3, 8 }, { 7, 10 ,8, 5 },  { 9, 5, 11, 2}  } };
  19. 	FourByFour r = rotate(S);
  20. 	for(int i=0; i < 4; i ++ ){
  21.         for(int n=0; n < 4; n++){
  22.             printf("%d ", r.arr[i][n]);
  23.         }
  24.         printf("\n");
  25.     }
  26. 	return 0;
  27. }
  28.  
Success #stdin #stdout 0s 2248KB
comments (?)
stdin
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Standard input is empty
stdout
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3 8 5 2 
10 3 8 11 
4 6 10 5 
1 0 7 9
https://ideone.com/7vjlU8
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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