/*
https://www.hackerrank.com/challenges/30-interfaces/problem
*/
class Calculator : public AdvancedArithmetic {
public:
int divisorSum(int n){
int result = 0;
for(int i=1;(int)i<=n/2;i++){ //Caculate numbers one to n/2
if(n%i == 0){
result += i;
}
}
result += n; //Add n itself.
return result;
}
};
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