Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 Have you thought about this? Here are some good questions to ask before coding. Bonus points for you if you have already thought through this! If the integer's last digit is 0, what should the output be? ie, cases such as 10, 100. Did you notice that the …

LeetCode-Reverse Integer

C++:
class Solution {
public:
    int reverse(int x) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        int res=0;
        while(x!=0){
            res=res*10+x%10;
            x=x/10;
        }
        return res;
    }
};
Java:
public class Solution {
    public int reverse(int x) {
        // Start typing your Java solution below
        // DO NOT write main() function
        int res=0;
        while(x!=0){
            res=res*10+x%10;
            x=x/10;
        }
        return res;
    }
}