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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6.     int x,y=0;
  7.     cin>>x;
  8.   while(x!=1){
  9.     y=y+x;
  10.     if(x<=0){x++;}
  11.     else{x--;}
  12.  
  13.  
  14.   }
  15.     cout<<y+1;
  16.     return 0;
  17. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/nqYMcD
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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