newbie_ljm的博客

百度ife学院关于春季练习任务三，历时10天左右，学习过程的笔记。

题目：Word Pattern Given a pattern and a string str, find if str follows the same pattern.Here follow means a full match, such that there is a bijection between a letter in pattern and a non-empty word in

题目：Plus One Given a non-negative number represented as an array of digits, plus one to the number. The digits are stored such that the most significant digit is at the head of the list. 题目分析： 将数字放在数组中存

题目：Summary Ranges Given a sorted integer array without duplicates, return the summary of its ranges.For example, given [0,1,2,4,5,7], return [“0->2”,”4->5”,”7”].Credits: Special thanks to @jianchao.li

题目： String to Integer (atoi) Implement atoi to convert a string to an integer.Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what a

题目：Number of 1 Bits 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 integer ’11’ has binary represen

题目：Merge Sorted Array Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.Note: You may assume that nums1 has enough space (size that is greater or equal to m +