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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int i,x,x1=1;
  5. 	for(i=1;x<1000;i++){
  6. 		x=2*x1+1;
  7. 		x1=x;
  8. 	}printf("%d",i);
  9. }
  10.  
Success #stdin #stdout 0s 5312KB
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Standard input is empty
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10
https://ideone.com/PAf8Lc
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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