I would like to inquire about the skill check test Level.2 Problem 2 Java Infinite Loop.

class Solution {
    public int[] solution(String s) {
        int[] answer = new int[2];
        int one = 0;
       while(s.length()>1){

           for(int i=0; i<s.length();i++){
               if(s.charAt(i)=='0')
                 answer[1]++;  
               else 
                   one++;
           }
           s = Integer.toBinaryString(one);
           answer[0]++;
       }

        return answer;
    }
}

When you run, all but test2 appears as timeout. I don't know why. Thank you to the teachers for your answer.

java

2023-02-02 20:53

1 Answers

I know that the question changes every time you take the skill check test, so it's hard to know what the question is if you tell me it's question number 2. Write down the title of the question and it will help you answer!

Separately, I guess it's code that takes a binary string and does something. Integer.toBinaryString converts the binary number to decimal, and s = Integer.toBinaryString(one); appears to be doing one as a binary number.

while-Let's check the progress of the loop s.length() > 1. This condition is when Integer.toBinaryString(one) has a length of 1 or greater, in other words, when one has a binary representation of 1 or greater. Therefore, if one is 2 or more, i.e. 10(2) or more binary, while will continue.

However, there is no decrease in one in the while loop. one will only increase, so if a situation other than s.charAt(i) == '0' occurs twice, it will be s.length() > 1 from then on and will spin indefinitely.

2023-02-03 08:26

If you have any answers or tips

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