文章 2017-12-15 来自:开发者社区

[LeetCode] Count of Smaller Numbers After Self 计算后面较小数字的个数

You are given an integer array nums and you have to return a new counts array. The counts array has the property where counts[i] is the number of smaller elemen...

文章 2017-12-13 来自:开发者社区

[LeetCode] Count Numbers with Unique Digits 计算各位不相同的数字个数

Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example: Given n = 2, return 91. (The answer should be the total numbers in the range of 0 ≤ x ...

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