Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly from the multiplication table? Given the height m and the length n of a m * n Multiplication Table, and a positive integer k, you need to return the k-th smallest number in this table. Example 1:? Input: m = 3, n = 3, k = 5 Output: Explanation: The Multiplication Table: 1 2 3 2 4 6 3 6 9 The 5-th smallest number is 3 (1, 2, 2, 3, 3). Example 2:? Input: m = 2, n = 3, k = 6 Output: Explanation: The Multiplication Table: 1 2 3 2 4 6 The 6-th smallest number is 6 (1, 2, 2, 3, 4, 6). https://leetcode.com/problems/kth-smallest-number-in-multiplication-table/solution/
668. Kth Smallest Number in Multiplication Table
原文：https://www.cnblogs.com/tobeabetterpig/p/9913089.html