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  1. #include <stdio.h>
  2.  
  3. void number_swap(int* a, int* b) {
  4. 	*a ^= *b;
  5. 	*b ^= *a;
  6. 	*a ^= *b;
  7. }
  8.  
  9. void rotate_left(int* a, int* b, int* c) {
  10. 	*a ^= *b ^ *c;
  11. 	*c ^= *a ^ *b;
  12. 	*b ^= *a ^ *c;
  13. 	*a ^= *b ^ *c;
  14. }
  15.  
  16. void rotate_right(int* a, int* b, int* c, int* d) {
  17. 	*a ^= *b ^ *c ^ *d;
  18. 	*b ^= *a ^ *c ^ *d;
  19. 	*c ^= *a ^ *b ^ *d;
  20. 	*d ^= *a ^ *b ^ *c;
  21. 	*a ^= *b ^ *c ^ *d;
  22. }
  23.  
  24. int main() {
  25. 	// your code goes here
  26. 	int a = 7894;
  27. 	int b = 1989;
  28. 	printf("a = %d, b = %d\n", a, b);
  29. 	number_swap(&a, &b);
  30. 	printf("a = %d, b = %d\n", a, b);
  31.  
  32. 	int aa = 5;
  33. 	int bb = 8;
  34. 	int cc = 3;
  35. 	printf("aa = %d, bb = %d, cc = %d\n", aa, bb, cc);
  36. 	rotate_left(&aa, &bb, &cc);
  37. 	printf("aa = %d, bb = %d, cc = %d\n", aa, bb, cc);
  38.  
  39. 	int aaa = 1;
  40. 	int bbb = 3;
  41. 	int ccc = 5;
  42. 	int ddd = 7;
  43. 	printf("aaa = %d, bbb = %d, ccc = %d, ddd = %d\n", aaa, bbb, ccc, ddd);
  44. 	rotate_right(&aaa, &bbb, &ccc, &ddd);
  45. 	printf("aaa = %d, bbb = %d, ccc = %d, ddd = %d\n", aaa, bbb, ccc, ddd);
  46.  
  47. 	return 0;
  48. }
Success #stdin #stdout 0s 2168KB
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stdin
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Standard input is empty
stdout
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a = 7894, b = 1989
a = 1989, b = 7894
aa = 5, bb = 8, cc = 3
aa = 8, bb = 3, cc = 5
aaa = 1, bbb = 3, ccc = 5, ddd = 7
aaa = 7, bbb = 1, ccc = 3, ddd = 5
https://ideone.com/ua19BB
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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