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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. #define cyfry(x, y) y = ceil(log10(x))
  5.  
  6. int main(void) {
  7. 	int x=123, y;
  8. 	cyfry(x,y);
  9. 	printf("Liczba %d posiada %d cyfr\n",x,y);
  10. 	return 0;
  11. }
  12.  
Success #stdin #stdout 0s 2160KB
comments ()
stdin 
Standard input is empty
stdout 
Liczba 123 posiada 3 cyfr
https://ideone.com/zJTPPQ
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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