of smaller elements to the right of nums[i]. Exampl ...
You are given an integer arraynumsand you have to return a newcountsarray. Thecountsarray has the property wherecounts i is the number of smaller elements to the right ofnums i . Example: 这道题给定了一个数组, ...
2015-12-26 17:42 14 23965 推荐指数:
of smaller elements to the right of nums[i]. Exampl ...
说来惭愧,已经四个月没有切 leetcode 上的题目了。 虽然工作中很少(几乎)没有用到什么高级算法,数据结构,但是我一直坚信 "任何语言都会过时,只有数据结构和算法才能永恒"。leetcode 上的题目,截止目前切了 137 道(all solutions),只写过 6 篇题解,所以我 ...
题目: 分析:很显然不能用时间复杂度为O(N2)的暴力穷举法,下面先给出一个运行时间为102ms的AC答案: 上面的答案虽然AC了,但若原始海量数据本身是降序排列时,再 ...
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 ...
链接 给定一个整数数组 nums,按要求返回一个新数组 counts。数组 counts 有该性质: counts[i] 的值是 nums[i] 右侧小于 nums[i] 的元素的数量。 ...
A self-dividing number is a number that is divisible by every digit it contains. For example, 128 is a self-dividing number because 128 ...
contain a single digit. Add the two numbers and retur ...
Given an array of n integers nums and a target, find the number of index triplets i, j, k with 0 ...