My c++ solution


  • 0
    H
    class Solution {
    public:
        bool isUgly(int num) {
            bool res=true;
            if(num<=0) return false;
            if(num==1) return true;
            while(true)
            {
               if(num%2==0) num=num/2;
               else if(num%3==0) num=num/3;
               else if(num%5==0) num=num/5; 
               else {res=false;break;}
               if(num-(int)num!=0) 
               {
                   res=false;
                   break;
               }
               if(num==1)
               {
                   res=true;
                   break;
               }
            }
            return res;
        }
    };
    

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