最近偶然碰到的一道題,題目本身解法不難,但屬於挺典型的數組問題處理的一種解法。 該題是利用前綴和的技巧判斷子數組合法性的。(另外一些常用於判斷數組合法性的典型方法有雙指針法即尺取,二分枚舉區間等。) 題目: 給定一個二進制數組, 找到含有相同數量的 0 和 1 的最長連續 ...
Given a binary array, find the maximum length of a contiguous subarray with equal number of and . Example : Example : Note:The length of the given binary array will not exceed , . 這道題給了我們一個二進制的數組,讓找鄰 ...
2017-03-10 11:41 4 9273 推薦指數:
最近偶然碰到的一道題,題目本身解法不難,但屬於挺典型的數組問題處理的一種解法。 該題是利用前綴和的技巧判斷子數組合法性的。(另外一些常用於判斷數組合法性的典型方法有雙指針法即尺取,二分枚舉區間等。) 題目: 給定一個二進制數組, 找到含有相同數量的 0 和 1 的最長連續 ...
Given a sorted positive integer array nums and an integer n, add/patch elements to the array such that any number in range [1, n] inclusive can ...
Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements. ...
Shuffle a set of numbers without duplicates. Example: 這道題讓我們給數組洗牌,也就是隨機打亂順序,那么由於之前那道題Linked List Random Node我們接觸到了水塘抽樣Reservoir Sampling的思想 ...
Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2), ..., (an, bn) which makes sum ...
For some fixed `N`, an array `A` is *beautiful* if it is a permutation of the integers `1, 2, ..., N`, such that: For every i < j, there is no k ...
An array is *monotonic* if it is either monotone increasing or monotone decreasing. An array A is monotone increasing if for all i <= j, A[i ...
Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements. Your ...