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  1. #include <iostream>
  2. using namespace std ;
  3.  
  4.  
  5.  
  6.  
  7. int main () {
  8.     int n , odd = 0 ,  even = 0 ;
  9.     cin >> n ;
  10.     for (int i = 1 ; i <= n ; ++i) {
  11.         if (i % 2 == 0) {
  12.             even += i ;
  13.         }
  14.         else {
  15.             odd += i ;
  16.         }
  17.     }
  18.     cout << "Sum odd = " << odd << endl;
  19.     cout << "Sum even = " << even <<endl ; 
  20.  
  21.     return 0 ;
  22. }
Success #stdin #stdout 0.01s 5300KB
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10
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Sum odd = 25
Sum even = 30
https://ideone.com/PlonfD
10
language:
C++14 (clang 8.0)
created:
3 days ago
visibility:
public

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