LEETCODEMedium
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
Constraints:
-231 <= x <= 231 - 1
풀이 TypeScript
function reverse(x: number): number {
const answer = +Math.abs(x).toString().split("").reverse().join("");
if (answer > 2 ** 31) return 0;
return x > 0 ? answer * 1 : answer * -1;
}복사됨