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  1. #include <cstdio>
  2. #include <cmath>
  3.  
  4. double segment_area(double d, double friend_r, double foe_r)
  5. {
  6.     double z = (foe_r * foe_r) - (friend_r * friend_r);
  7.     double alpha = 2.0 * asin(friend_r - ((((d - (fabs(z) / d)) / 2.0) * ((d - (fabs(z) / d)) / 2.0))) / friend_r);
  8.     printf("%lf\n", alpha);
  9.     return 0;
  10. }
  11.  
  12. int main() {
  13.     segment_area(1, 2, 3);
  14.     printf("%lf\n", fabs(-10.47749));
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 3456KB
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stdin
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Standard input is empty
stdout
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0.000000
10.477490
https://ideone.com/dTkT3J
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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