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  1. #include <stdio.h>
  2. #include <stdio.h>
  3.  
  4. int main(void) {
  5. 	// your code goes here
  6. double  a=0;
  7. scanf("lf",&a);
  8. printf ("a的平方根是%f",sqrt(a));
  9.  
  10. 	return 0;
  11. }
  12.  
Success #stdin #stdout 0s 5288KB
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stdin
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Standard input is empty
stdout
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a的平方根是0.000000
https://ideone.com/PYl21n
4.0
language:
C (gcc 8.3)
created:
13 days ago
visibility:
public

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