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  1. #include <stdio.h>
  2. #include <math.h>
  3. int main(void) {
  4. 	// your code goes here
  5.     double a;
  6.     scanf("%lf",&a);
  7.     printf("a的平方根是%f",sqrt(a));
  8. 	return 0;
  9. }
  10.  
Success #stdin #stdout 0.01s 5316KB
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a的平方根是2.000000
https://ideone.com/EBxA1L
language:
C (gcc 8.3)
created:
13 days ago
visibility:
public

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