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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.     y=fabs(x);
  13.     scanf("%d",&x);
  14.     printf("x的绝对值是:%d\n",y);
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 544KB
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x的绝对值是:32765
https://ideone.com/W3Jf4k
language:
C (gcc 8.3)
created:
13 hours ago
visibility:
public

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