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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5. 	int a=1, b=20;
  6.  
  7. 	while(a<=b){
  8. 		printf("%d %d\n",a,b  );
  9. 	a++;
  10. 	b--;
  11.  
  12. 	}
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin
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Standard input is empty
stdout
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1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
https://ideone.com/NYktML
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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