随笔分类 - Leetcode
摘要：Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like this: "...zabcdefghijklmnopqrstuvwxyza
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摘要：In the computer world, use restricted resource you have to generate maximum benefit is what we always want to pursue. For now, suppose you are a domin
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摘要：Define S = [s,n] as the string S which consists of n connected strings s. For example, ["abc", 3] ="abcabcabc". On the other hand, we define that stri
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摘要：In the "100 game," two players take turns adding, to a running total, any integer from 1..10. The player who first causes the running total to reach o
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摘要：A sequence of numbers is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the
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摘要：Given a non-empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both
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摘要：A sequence of number is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the
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摘要：A frog is crossing a river. The river is divided into x units and at each unit there may or may not exist a stone. The frog can jump on a stone, but i
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摘要：Given an integer array with all positive numbers and no duplicates, find the number of possible combinations that add up to a positive integer target.
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摘要：We are playing the Guess Game. The game is as follows: I pick a number from 1 to n. You have to guess which number I picked. Every time you guess wron
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摘要：Given a set of distinct positive integers, find the largest subset such that every pair (Si, Sj) of elements in this subset satisfies: Si % Sj = 0 or
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摘要：Given a positive integer n, break it into the sum of at least two positive integers and maximize the product of those integers. Return the maximum pro
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摘要：Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and r
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摘要：You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you nee
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摘要：Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2
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摘要：Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Note: Approach #1: My code. [C++] Appro
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摘要：Given a 2D binary matrix filled with 0's and 1's, find the largest square containing only 1's and return its area. Example: Approach #1: DP. [C++] Ana
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摘要：You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed. All houses at this place are ar
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摘要：You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo
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摘要：Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product. Example 1: E
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