Wednesday, February 3, 2016

Reverse 3-digit Integer

Reverse 3-digit Integer

Reverse a 3-digit integer.

Example
Reverse 123 you will get 321.
Reverse 900 you will get 9.
Note

You may assume the given number is larger or equal to 100 but smaller than 1000.

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class Solution {
    /*
     * param number: A 3-digit number.
     * return: Reversed number.
     */
    public int reverseInteger(int number) {
        // write your code here
        int n1 = number % 10;
        int n2 = number % 100 / 10;
        int n3 = number / 100;
        return n1 * 100 + n2 * 10 + n3;
    }
};