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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 阅读全文
posted @ 2017-10-18 17:32
daniel456
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Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Note: 给定一个int数组，返回i和j之间的元素总和，注意时间复杂度 思路 阅读全文
posted @ 2017-10-18 17:23
daniel456
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Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction 阅读全文
posted @ 2017-10-18 17:18
daniel456
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You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl 阅读全文
posted @ 2017-10-18 17:14
daniel456
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Given a string, your task is to count how many palindromic substrings in this string. The substrings with different start indexes or end indexes are c 阅读全文
posted @ 2017-10-18 15:47
daniel456
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Given a list of directory info including directory path, and all the files with contents in this directory, you need to find out all the groups of dup 阅读全文
posted @ 2017-10-18 15:37
daniel456
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Given two words word1 and word2, find the minimum number of steps required to make word1 and word2 the same, where in each step you can delete one cha 阅读全文
posted @ 2017-10-18 15:32
daniel456
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Given a positive 32-bit integer n, you need to find the smallest 32-bit integer which has exactly the same digits existing in the integer nand is grea 阅读全文
posted @ 2017-10-18 15:04
daniel456
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Given a list of positive integers, the adjacent integers will perform the float division. For example, [2,3,4] -> 2 / 3 / 4. However, you can add any 阅读全文
posted @ 2017-10-18 14:39
daniel456
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Given a list of 24-hour clock time points in "Hour:Minutes" format, find the minimum minutes difference between any two time points in the list. Examp 阅读全文
posted @ 2017-10-18 14:01
daniel456
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