g0401_0500.s0440_k_th_smallest_in_lexicographical_order

Class Solution

java.lang.Object

g0401_0500.s0440_k_th_smallest_in_lexicographical_order.Solution

public class Solution
extends Object

440 - K-th Smallest in Lexicographical Order.

Hard

Given two integers n and k, return the kth lexicographically smallest integer in the range [1, n].

Example 1:

Input: n = 13, k = 2

Output: 10

Explanation: The lexicographical order is [1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9], so the second smallest number is 10.

Example 2:

Input: n = 1, k = 1

Output: 1

Constraints:

• 1 <= k <= n <= 109

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	findKthNumber(int n, int k)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

findKthNumber

public int findKthNumber(int n,
                         int k)