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  1. #include <stdio.h>
  2.  
  3. int main() {
  4. 	int tab[] = {1,2,3,4,5,6,7};
  5. 	int i;
  6. 	for (i = 0; i < 7; i+= 2) {
  7. 		int tmp = tab[i];
  8. 		tab[i] = tab[i+1];
  9. 		tab[i+1] = tmp;
  10. 	}
  11.  
  12. 	for (i = 0; i < 7; i++) {
  13. 		printf("%d ", tab[i]);
  14. 	}
  15.  
  16. 	return 0;
  17. }
Success #stdin #stdout 0s 2168KB
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stdin
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Standard input is empty
stdout
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2 1 4 3 6 5 1
https://ideone.com/9n8vAO
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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