[LeetCode] 878. Nth Magical Number 第N个神奇数字

A positive integer?is?magical?if it is divisible by either?A?or?B.

Return the?N-th magical number.? Since the answer may be very large,?return it modulo?10^9 + 7.

Example 1:

Input: N = 1, A = 2, B = 3
Output: 2

Example 2:

Input: N = 4, A = 2, B = 3
Output: 6

Example 3:

Input: N = 5, A = 2, B = 4
Output: 10

Example 4:

Input: N = 3, A = 6, B = 4
Output: 8

Note:

1. 1 <= N?<= 10^9
2. 2 <= A?<= 40000
3. 2 <= B?<= 40000

Github 同步地址:

https://github.com/grandyang/leetcode/issues/878

参考资料：

https://leetcode.com/problems/nth-magical-number/

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[LeetCode] 878. Nth Magical Number 第N个神奇数字

原文：https://www.cnblogs.com/grandyang/p/11148889.html