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a guest Jan 18th, 2019 56 Never
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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int x, y, sum = 0;
  6.     int temp = 0;
  7.     cin >> x >> y;
  8.     if (x > y) {
  9.         if (x % 2 == 0)
  10.         {
  11.             temp = x / 2;
  12.             sum += temp + temp / 2 - 1;
  13.         }
  14.         else if (x % 2 == 1) {
  15.             temp = x / 2 + 1;
  16.             sum += temp + temp / 2 - 1;
  17.         }
  18.     }
  19.     else if (y > x)
  20.     {
  21.         if( y % 2 == 0)
  22.         {
  23.             temp = y / 2;
  24.             sum += temp + temp / 2 - 1;
  25.         }
  26.         else if (y % 2 == 1) {
  27.             temp = y / 2 + 1;
  28.             sum += temp + temp / 2 - 1;
  29.         }
  30.     }
  31.     if (x == y) {
  32.         if (x == 2)
  33.             cout << 1;
  34.         if (x == 3)
  35.             cout << 2;
  36.         if (x == 1)
  37.             cout << 1;
  38.         else if (x % 2 == 0)
  39.         {
  40.             temp = x / 2;
  41.             sum = temp + temp - 1;
  42.  
  43.         }
  44.         else if (x % 2 == 1) {
  45.             temp = x / 2 + 1;
  46.             sum = temp + temp - 1;
  47.         }
  48.     }
  49.     cout << sum;
  50.     system("pause");
  51. }
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