Watch 10 video solutions for Kth Smallest Number in Multiplication Table, a hard level problem involving Math, Binary Search. This walkthrough by NeetCode has 207,441 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
Nearly everyone has used the Multiplication Table. The multiplication table of size m x n is an integer matrix mat where mat[i][j] == i * j (1-indexed).
Given three integers m, n, and k, return the kth smallest element in the m x n multiplication table.
Example 1:
Input: m = 3, n = 3, k = 5 Output: 3 Explanation: The 5th smallest number is 3.
Example 2:
Input: m = 2, n = 3, k = 6 Output: 6 Explanation: The 6th smallest number is 6.
Constraints:
1 <= m, n <= 3 * 1041 <= k <= m * n