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leetcode 34. Find First and Last Position of Element in Sorted Array【裸二分】

https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/ Given an array of integers nums sorted in ascending order, fin...

2019-07-16

0 867

leetcode 904. Fruit Into Baskets[map维护滑动窗口]

https://leetcode.com/problems/fruit-into-baskets/ In a row of trees, the i-th tree produces fruit with type tree[i]. You start at any tree of your c...

2019-07-14

0 1096

leetcode 129. Sum Root to Leaf Numbers

https://leetcode.com/problems/sum-root-to-leaf-numbers/ Medium 71225FavoriteShare Given a binary tree containing digits from 0-9 only, each root-to...

2019-07-11

0 937

377. Combination Sum IV

辣鸡题目也没说取模啊 Given an integer array with all positive numbers and no duplicates, find the number of possible combinations that add up to a positive ...

2019-07-06

0 643

leetcode 264. Ugly Number II

经典的找第几个丑数是啥大一小孩都会 https://leetcode.com/problems/ugly-number-ii/ Write a program to find the n-th ugly number. Ugly numbers are positive numbers w...

2019-07-06

0 657

leetcode322. Coin Change

辣鸡如我，居然现在完全背包还要想这么久 https://leetcode.com/problems/coin-change/ You are given coins of different denominations and a total amount of money amount. Wr...

2019-07-06

0 723

记录有惊无险的git操作【整理git commit顺序】

Backgroud：公司要求每个版本的git commit都要发CR，然而CR的机制是会将同一个branch的全都交上去。然而我修改的两个feature忘记切换branch了。 git log显示 pick 3894321 upload NAC folder setting #A pic...

2019-07-05

0 903

leetcode 97. Interleaving String

https://leetcode.com/problems/interleaving-string/ Given s1, s2, s3, find whether s3 is formed by the interleaving of s1and s2. Example 1: Input: ...

2019-07-03

0 692

leetcode 113. Path Sum II【回溯】

Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. Note: A leaf is a node with no children. Exam...

2019-06-10

0 882

leetcode 92. Reverse Linked List II

https://leetcode.com/problems/reverse-linked-list-ii/ 难度还好，和之前的反转链表没本质区别，把头尾拆出来即可关于stack存储，和汪童鞋中午吃饭讨论说起来存listnode肯定更好一些 Reverse a linked list fro...

2019-06-09

0 681