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  1. #include <stdio.h>
  2. #define PI 3.14
  3. int main() {
  4.     float r;
  5.     scanf("%f", &r);
  6.     printf("Area=%.2f\nCircumference=%.2f", PI*r*r, 2*PI*r);
  7.     return 0;
  8. }
  9.  
Success #stdin #stdout 0.01s 5316KB
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Area=50.24
Circumference=25.12
https://ideone.com/y3UDzy
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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