LeetCode - 随笔分类(第3页) - cKK

ReverseBits

摘要：eclipse没问题，leetcode 1不能通过，超出int最大值了，但是怎么转无符号？/*Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known a... 阅读全文

posted @ 2015-06-03 23:56 cKK 阅读(158) 评论(0) 推荐(0)

Number of 1 Bits

摘要：/*Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight).For example, the 32-bit... 阅读全文

posted @ 2015-06-03 22:13 cKK 阅读(134) 评论(0) 推荐(0)

Excel Sheet Column Number

摘要：主意利用asc码 /*Given a column title as appear in an Excel sheet, return its corresponding column number. For example: A -> 1 B -> 2 C -> 3 ... Z -> 26 AA 阅读全文

posted @ 2015-06-03 21:45 cKK 阅读(190) 评论(0) 推荐(0)

HappyNum

摘要：/*Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integ... 阅读全文

posted @ 2015-06-03 21:11 cKK 阅读(235) 评论(0) 推荐(0)

isIsomorphic

摘要：超时版：/*Given two strings s and t, determine if they are isomorphic.Two strings are isomorphic if the characters in s can be replaced to get t.All occur... 阅读全文

posted @ 2015-06-03 00:18 cKK 阅读(221) 评论(0) 推荐(0)

Contains DuplicateII

摘要：超时版：/*Contains Duplicate II Given an array of integers and an integer k, find out whether there there are two distinct indices i and j in the array su... 阅读全文

posted @ 2015-06-02 11:09 cKK 阅读(258) 评论(0) 推荐(0)

Contains Duplicate

摘要：//Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the a... 阅读全文

posted @ 2015-06-02 11:07 cKK 阅读(142) 评论(0) 推荐(0)

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随笔分类 - LeetCode