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Given an array A of integers, for each integer A[i] we need to choose either x = -K or x = K, and add x to A[i] (only once). After this process, we ha ÔĶÁÈ«ÎÄ
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Strings and are similar (for some non negative integer ) if we can swap the positions of two letters in exactly times so that the resulting string equ ÔĶÁÈ«ÎÄ
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On an N x N , the numbers from to are written boustrophedonically starting from the bottom left of the board, and alternating direction each row. For ÔĶÁÈ«ÎÄ
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There are workers. The th worker has a and a minimum wage expectation . Now we want to hire exactly workers to form a paid group . When hiring a group ÔĶÁÈ«ÎÄ
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Given an array of integers, for each integer we may choose any with ` K ÕâµÀÌâ˵ÊǸøÁËÒ»¸ö·Ç¸ºÊýµÄÊý×飬ºÍÒ»¸ö·Ç¸ºÊýK£¬ËµÊÇÊý×éÖеÄÿһ¸öÊý×Ö¶¼¿ÉÒÔ¼ÓÉÏ [ K, K] ·¶Î§ÄÚµÄÈa56爆大奖在线娱乐âÒ»¸öÊý×Ö£¬ÎÊÐÂÊý×éµÄ×î´óÖµ×îСֵ֮¼äµÄ²îÖµ×îС ÔĶÁÈ«ÎÄ
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Return the length of the shortest, non-empty, contiguous subarray of A with sum at least K. If there is no non-empty subarray with sum at least K, ret ÔĶÁÈ«ÎÄ
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Given an array of integers arr, find the sum of min(b), where b ranges over every (contiguous) subarray of arr. Since the answer may be large, return ÔĶÁÈ«ÎÄ
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We are given a 2-dimensional grid. "." is an empty cell, "#" is a wall, "@" is the starting point, ("a", "b", ...) are keys, and ("A", "B", ...) are l ÔĶÁÈ«ÎÄ
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Let's say a positive integer is a *superpalindrome* if it is a palindrome, and it is also the square of a palindrome. Now, given two positive integers ÔĶÁÈ«ÎÄ
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A car travels from a starting position to a destination which is miles east of the starting position. Along the way, there are gas stations. Each repr ÔĶÁÈ«ÎÄ
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Given an array of non negative integers, return an array consisting of all the even elements of , followed by all the odd elements of . You may return ÔĶÁÈ«ÎÄ
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We run a preorder depth first search on the rootof a binary tree. At each node in this traversal, we output D dashes (where D is the depth of this nod ÔĶÁÈ«ÎÄ
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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 modul ÔĶÁÈ«ÎÄ
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In a row of trees, the th tree produces fruit with type . You start at any tree of your choice, then repeatedly perform the following steps: 1. Add on ÔĶÁÈ«ÎÄ
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There are G people in a gang, and a list of various crimes they could commit. The th crime generates a and requires gang members to participate. If a ÔĶÁÈ«ÎÄ
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We are given , a length string of characters from the set . (These letters stand for "decreasing" and "increasing".) A valid permutation is a permutat ÔĶÁÈ«ÎÄ
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Starting with an undirected graph (the "original graph") with nodes from to , subdivisions are made to some of the edges. The graph is given as follow ÔĶÁÈ«ÎÄ
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We have a sorted set of digits D, a non-empty subset of {'1','2','3','4','5','6','7','8','9'}. (Note that '0' is not included.) Now, we write numbers ÔĶÁÈ«ÎÄ
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You are given eggs, and you have access to a building with floors from to . Each egg is identical in function, and if an egg breaks, you cannot drop i ÔĶÁÈ«ÎÄ
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Write a class which collects daily price quotes for some stock, and returns the span of that stock's price for the current day. The span of the stock' ÔĶÁÈ«ÎÄ
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Given an array of integers , consider all non empty subsequences of . For any sequence S, let the width of S be the difference between the maximum and ÔĶÁÈ«ÎÄ
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Write an iterator that iterates through a run length encoded sequence. The iterator is initialized by , where is a run length encoding of some sequenc ÔĶÁÈ«ÎÄ
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A string of lowercase letters is given. Then, we may make any number of moves . In each move, we choose one of the first letters (starting from the le ÔĶÁÈ«ÎÄ
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Implement , a class which simulates the operation of a stack like data structure. has two functions: , which pushes an integer onto the stack. , which ÔĶÁÈ«ÎÄ
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We have an array A of non-negative integers. For every (contiguous) subarray B = [A[i], A[i+1], ..., A[j]] (with i <= j), we take the bitwise OR of al ÔĶÁÈ«ÎÄ
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Given a tree, rearrange the tree in in-order so that the leftmost node in the tree is now the root of the tree, and every node has no left child and o ÔĶÁÈ«ÎÄ
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An array is monotonic if it is either monotone increasing or monotone decreasing. An array is monotone increasing if for all . Return if and only if t ÔĶÁÈ«ÎÄ
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A full binary tree is a binary tree where each node has exactly 0 or 2 children. Return a list of all possible full binary trees with nodes. Each elem ÔĶÁÈ«ÎÄ
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You are given an array of strings. Two strings and are special equivalent if after any number of moves , S == T. A move consists of choosing two indic ÔĶÁÈ«ÎÄ
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On a grid, we place some cubes. Each value represents a tower of cubes placed on top of grid cell . Return the total surface area of the resulting sha ÔĶÁÈ«ÎÄ
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You have a list of and a , and you want to know which words in matches the pattern. A word matches the pattern if there exists a permutation of letter ÔĶÁÈ«ÎÄ
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Return any binary tree that matches the given preorder and postorder traversals. Values in the traversals and are distinct positive integers. Example ÔĶÁÈ«ÎÄ
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Alice and Bob have candy bars of different sizes: is the size of the th bar of candy that Alice has, and is the size of the th bar of candy that Bob h ÔĶÁÈ«ÎÄ
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On a 2 dimensional grid with rows and columns, we start at facing east. Here, the north west corner of the grid is at the first row and column, and th ÔĶÁÈ«ÎÄ
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We are given two sentences and . (A sentence is a string of space separated words. Each word consists only of lowercase letters.) A word is uncommon i ÔĶÁÈ«ÎÄ
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On a grid, we place some cubes that are axis aligned with the x, y, and z axes. Each value represents a tower of cubes placed on top of grid cell . No ÔĶÁÈ«ÎÄ
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The th person has weight , and each boat can carry a maximum weight of . Each boat carries at most 2 people at the same time, provided the sum of the ÔĶÁÈ«ÎÄ
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An encoded string is given. To find and write the decoded string to a tape, the encoded string is read one character at a time and the following steps ÔĶÁÈ«ÎÄ
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Alex and Lee play a game with piles of stones. There are an even number of piles arranged in a row, and each pile has a positive integer number of sto ÔĶÁÈ«ÎÄ