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4. Median of Two Sorted Arrays
There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity sh ...
分类:其他好文   时间:2018-09-27 18:05:12    阅读次数:117
[leetcode]merge-k-sorted-lists
题目描述:Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 题目理解:合并k个有序表成为一个有序表 简单版:简单遍历 代码: 晋级版:归并法(时间复杂度 ...
分类:其他好文   时间:2018-09-26 11:46:15    阅读次数:181
leetcode 23-Merge k Sorted Lists(hard)
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: divide and conquer, like merge sort, use t ...
分类:其他好文   时间:2018-09-23 16:31:43    阅读次数:120
leetcode 76-Minimum Window Substring(hard)
Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). cases: when stand on the ...
分类:Windows程序   时间:2018-09-22 14:41:21    阅读次数:167
软件复杂性
参考文章: 阮一峰:http://www.ruanyifeng.com/blog/2018/09/complexity.html 软件复杂性: 软件设计的最大目标,就是降低复杂性。 所谓复杂性,就是任何使得软件难于理解和修改的因素。 复杂性的来源主要有两个:代码的含义模糊 和 互相依赖。 复杂性的危 ...
分类:其他好文   时间:2018-09-15 12:25:02    阅读次数:180
[LeetCode] 148. Sort List 链表排序
Sort a linked list in O(n log n) time using constant space complexity. Example 1: Example 2: 解法:归并排序。由于有时间和空间复杂度的要求。把链表从中间分开,递归下去,都最后两个node时开始合并,返回上一层 ...
分类:编程语言   时间:2018-09-08 15:26:38    阅读次数:124
lintcode104 - Merge K Sorted Lists -medium
Merge k sorted linked lists and return it as one sorted list.Analyze and describe its complexity.ExampleGiven lists:[ 2->4->null, null, -1->null],retu ...
分类:其他好文   时间:2018-09-06 10:50:04    阅读次数:178
301. Remove Invalid Parentheses
301. Remove Invalid Parentheses https://leetcode.com/problems/remove-invalid-parentheses/discuss/75032/Share-my-Java-BFS-solution Time complexity anal... ...
分类:其他好文   时间:2018-08-17 00:43:58    阅读次数:150
494. Target Sum
494. Target Sum https://www.youtube.com/watch?v=r6Wz4W1TbuI https://leetcode.com/problems/target-sum/solution/ ===================== Time complexity :... ...
分类:其他好文   时间:2018-08-09 19:30:04    阅读次数:138
LeetCode-Flip Game II
若是有一段"++", 剩下的段和"--"组合 can not win, 那么返回true. 从头到尾试遍了没找到这么一段"++", 返回false. Time Complexity: exponential. T(n) = (n-2) * T(n-2) = (n-2) * (n-4) * T(n-4 ...
分类:其他好文   时间:2018-07-30 01:05:59    阅读次数:150
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