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  1. #include <stdio.h>
  2.  
  3. int main() {
  4. 	int i,n,j;
  5. 	scanf("%d",&n);
  6. 	for(i=n;i>=1;i--){
  7. 		for(j=1;j<=i;j++){
  8. 			if(j%2==0){
  9. 				printf("1 ");
  10. 			}
  11. 			else{
  12. 				printf("0 ");
  13. 			}
  14. 		}
  15. 		printf("\n");
  16. 	}
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5308KB
comments (?)
stdin
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5
stdout
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0 1 0 1 0 
0 1 0 1 
0 1 0 
0 1 
0
https://ideone.com/JXrtS7
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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