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Nov 21st, 2017
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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main (){
  5. int a,b,n;
  6. int suma=0, tab[1001];
  7. cin>>n;
  8.  
  9. for(int i=1; i<=n; i++){
  10.  
  11. cin>>tab[i];
  12.  
  13. }
  14. cin>>a>>b;
  15.  
  16. for(int j=a; j<=b;j++){
  17. suma+=tab[j];
  18. }
  19. cout<<suma/((b-a)+1);
  20.  
  21.  
  22. return 0;
  23. }
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