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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. float R=25,chuvi;
  5. const pi=3.14;
  6. chuvi=2*pi*R;
  7. printf("%f",chuvi);
  8. return 0;
  9. }
  10.  
Success #stdin #stdout 0s 5284KB
stdin
Standard input is empty
stdout
150.000000