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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>0){
  9. x--;
  10.   y=y+x;
  11. }
  12.     cout<<y;
  13. return 0;
  14. }
Success #stdin #stdout 0s 16064KB
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5
stdout
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10
https://ideone.com/xJKCOY
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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