Easy to Understand My C++ Solution


  • 0
    L
    class Solution {
    public:
        bool checkPerfectNumber(int num) {
            if(num <= 1)
                return false;
            int res = 1;
            for(int i = 2 ;i < sqrt(num);++i){
                if(num %i == 0){
                    res += i + num/i;
                }
            }
            if(res == num)
                return true;
            return false;
        }
    };
    

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