06 2020 档案
摘要：题目如下： Given an integer n and an integer start. Define an array nums where nums[i] = start + 2*i (0-indexed) and n == nums.length. Return the bitwise X
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摘要：题目如下： Given an array of integers arr and an integer k. Find the least number of unique integers after removing exactly k elements. Example 1: Input: a
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摘要：题目如下： Given an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]). Return the running sum of nums. Example 1: Inp
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摘要：题目如下： There are n cities numbered from 0 to n-1 and n-1 roads such that there is only one way to travel between two different cities (this network for
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摘要：题目如下： Given a rectangular cake with height h and width w, and two arrays of integers horizontalCuts and verticalCuts where horizontalCuts[i] is the di
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摘要：题目如下： Given the array of integers nums, you will choose two different indices i and j of that array. Return the maximum value of (nums[i]-1)*(nums[j]-
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摘要：题目如下： Given a binary string s and an integer k. Return True if every binary code of length k is a substring of s. Otherwise, return False. Example 1:
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摘要：题目如下： Given two integer arrays of equal length target and arr. In one step, you can select any non-empty sub-array of arr and reverse it. You are allo
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摘要：题目如下： Given a binary tree where node values are digits from 1 to 9. A path in the binary tree is said to be pseudo-palindromic if at least one permuta
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摘要：题目如下： Given a string s and an integer k. Return the maximum number of vowel letters in any substring of s with length k. Vowel letters in English are
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摘要：题目如下： Given a sentence that consists of some words separated by a single space, and a searchWord. You have to check if searchWord is a prefix of any w
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摘要：题目如下： Given the array favoriteCompanies where favoriteCompanies[i] is the list of favorites companies for the ith person (indexed from 0). Return the
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摘要：题目如下： Given a sentence text (A sentence is a string of space-separated words) in the following format: First letter is in upper case. Each word in tex
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摘要：题目如下： Given two integer arrays startTime and endTime and given an integer queryTime. The ith student started doing their homework at the time startTim
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摘要：题目如下： Given a binary tree root, a node X in the tree is named good if in the path from root to X there are no nodes with a value greater than X. Retur
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摘要：题目如下： Given an integer n, return a list of all simplified fractions between 0 and 1 (exclusive) such that the denominator is less-than-or-equal-to n.
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摘要：题目如下： Given a string s, the power of the string is the maximum length of a non-empty substring that contains only one unique character. Return the pow
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摘要：题目如下： Given an array of integers arr. We want to select three indices i, j and k where (0 <= i < j <= k < arr.length). Let's define a and b as follows
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摘要：题目如下： Given an array target and an integer n. In each iteration, you will read a number from list = {1,2,3..., n}. Build the target array using the fo
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摘要：题目如下： Given an array nums of 0s and 1s and an integer k, return True if all 1's are at least k places away from each other, otherwise return False. Ex
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摘要：题目如下： You are given the array paths, where paths[i] = [cityAi, cityBi] means there exists a direct path going from cityAi to cityBi. Return the destin
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摘要：题目如下： Given two strings: s1 and s2 with the same size, check if some permutation of string s1 can break some permutation of string s2 or vice-versa (i
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摘要：题目如下： You are given an integer num. You will apply the following steps exactly two times: Pick a digit x (0 <= x <= 9). Pick another digit y (0 <= y <
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摘要：题目如下： Given the array candies and the integer extraCandies, where candies[i] represents the number of candies that the ith kid has. For each kid check
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摘要：题目如下： There are several cards arranged in a row, and each card has an associated number of points The points are given in the integer array cardPoints
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摘要：题目如下： Given a string s of zeros and ones, return the maximum score after splitting the string into two non-empty substrings (i.e. left substring and r
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摘要：题目如下： Given the string croakOfFrogs, which represents a combination of the string "croak" from different frogs, that is, multiple frogs can croak at t
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摘要：题目如下： Given the array orders, which represents the orders that customers have done in a restaurant. More specifically orders[i]=[customerNamei,tableNu
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摘要：题目如下： Given alphanumeric string s. (Alphanumeric string is a string consisting of lowercase English letters and digits). You have to find a permutatio
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