Leetcode Problem - Reverse an Integer
Suboor Khan
#Javascript#Problem solving
Solution of leetcode problem - Reverse an Integer
7. Reverse Integer
Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-231, 231 - 1], then return 0.
Assume the environment does not allow you to store 64-bit integers (signed or unsigned).
Example 1:
Input: x = 123 Output: 321
Example 2:
Input: x = -123 Output: -321
Example 3:
Input: x = 120 Output: 21
Solution:
const reverseIntger = (num: number) => {
let rev_num = 0;
while (num > 0) {
rev_num = rev_num * 10 + (num % 10);
num = Math.floor(num / 10);
}
};