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Stepik_Task_12

Jul 25th, 2017
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C++ 0.34 KB | None | 0 0
  1. //goo.gl/z57W5E
  2. #include <iostream>
  3. #include <cmath>
  4. using namespace std;
  5.  
  6. double power(double a, int n) {
  7.     if (n == 0) {
  8.         return 1;
  9.     }
  10.     if (n % 2 == 0) {
  11.         a = a * a;
  12.         n = n / 2;
  13.         return a * power(a, n - 1);
  14.     }
  15.     return a * power(a, n - 1);
  16. }
  17.  
  18. int main() {
  19.     double a;
  20.     int n;
  21.     cin >> a >> n;
  22.     cout << power(a, n);
  23.     return 0;
  24. }
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