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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. double m,a,p1;
  7. cin >> m >> a >> p1;
  8. cout << p1*(m- (2*m*a) +a) << "\n";
  9. //cout <<endl;
  10. return 0;
  11. }
  12.  
Success #stdin #stdout 0s 3472KB
stdin
0.2
0.2
0.5
stdout
0.16