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  1. #include <stdio.h>
  2. int fabs(int a)
  3. {   
  4.     if(a>=0)
  5.     a=a;
  6.     else 
  7.     a=-a;
  8.     return a;
  9. }
  10. int main(void) {
  11. 	int x,y;
  12.     scanf("%d",&x);
  13.     y=fabs(x);
  14.  
  15.     printf("%d的绝对值是:%d\n",x,y);
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5360KB
comments (?)
stdin 
23
stdout 
23的绝对值是:23
https://ideone.com/xJaZmH
language:
C (gcc 8.3)
created:
14 hours ago
visibility:
public

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