Simple java solution


  • -3
    M
        public boolean isPalindrome(int x) {
        if(x<0)return false;
        String s=String.valueOf(x);
    
        int i=0,k=s.length()-1;
        while(i<k){
            if(s.charAt(i++)!=s.charAt(k--)) return false;                 
        }   
        return true;
    }

  • 1
    A

    please be careful about the sentence:
    If you are thinking of converting the integer to string, note the restriction of using extra space.


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