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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main() {
  5.     int t;
  6.     scanf("%d", &t);
  7.  
  8.     while (t--) {
  9.         double X1, X2, Y, h;
  10.         scanf("%lf %lf %lf", &X1, &X2, &Y);
  11.         scanf("%lf", &h);
  12.  
  13.         double x_mid = (X1 + X2) / 2.0;
  14.         double a = Y / ((x_mid - X1) * (x_mid - X2));
  15.         double left = X1 < X2 ? X1 : X2;
  16.         double right = X1 > X2 ? X1 : X2;
  17.  
  18.         double base_area = fabs(a) * pow(right - left, 3) / 6.0;
  19.         double volume = (1.0 / 3.0) * base_area * h;
  20.  
  21.         printf("%.4f\n", volume);
  22.     }
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/brwJ9g
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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