This code is right in code run test, but wrong in submit.


  • 0
    S

    I need your help. This code, can't pass. Please tell me what is wrong. Thank you.

    class Solution {
        vector<int> frag(int n) {
            vector<int> vi; 
            while (n > 0) {
                vi.push_back(n % 10);
                n /= 10; 
            }
            return vi; 
        }   
    public:
        bool isHappy(int n) {
            vector<int> vi = frag(n);
            int sum = 0;
            static int count = 42; 
            while (count > 0) {
                count --; 
                for (int i = 0; i < vi.size(); i++)
                    sum += vi[i] * vi[i];
                if (sum == 1) return true;
                return isHappy(sum);
            }
            return false;
        }   
    };
    

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