[LeetCode]378. Kth Smallest Element in a Sorted Matrix 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/description/ 题目描述: Given a n x n matrix where each of the rows and columns are sorted in ascen…

[LeetCode]779. K-th Symbol in Grammar 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/k-th-symbol-in-grammar/description/ 题目描述: On the first row, we write a 0. Now in every subsequent row, we lo…

Difficulty: Medium  More:[目录]LeetCode Java实现 Description https://leetcode.com/problems/kth-smallest-element-in-a-bst/ Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always va…

题目如下: 解题思路:几乎和[leetcode]719. Find K-th Smallest Pair Distance 的方法一样.只不过一个是减法一个是乘法,还有一点区别是[leetcode]719. Find K-th Smallest Pair Distance中i-j和j-i只算一个元素,而本题中i*j与j*i算两个元素. 代码如下: class Solution(object): def findKthNumber(self, m, n, k): """ :ty…

3223. [HBOI2013]Ede的新背包问题 (Standard IO) Time Limits: 2000 ms  Memory Limits: 262144 KB  Detailed Limits   Goto ProblemSet Description…

2137. [GDKOI2004]城市统计 (Standard IO) Time Limits: 1000 ms  Memory Limits: 128000 KB  Detailed Limits   Goto ProblemSet Description 中山市的地图是一个n*n的矩阵,其中标号为1的表示商业区,标号为0的表示居民区.为了考察市内居民区与商业区的距离,并对此作出评估,市长希望你能够编写一个程序完成这一任务. 居民区i到商业区的距离指的是到距离它最近的商业区j的距离(|Xi-X…

2136. [GDKOI2004]汉诺塔 (Standard IO) Time Limits: 3000 ms  Memory Limits: 128000 KB  Detailed Limits   Goto ProblemSet Description 古老的汉诺塔问题是这样的:用最少的步数将N个半径互不相等的圆盘从1号柱利用2号柱全部移动到3号柱,在移动的过程中小盘要始终在大盘的上面. 现在再加上一个条件:不允许直接把盘从1号柱移动到3号柱,也不允许直接把盘从3号柱移动到1号柱. 把盘按半…

1154. [GDOI2003]购物 (Standard IO) Time Limits: 1000 ms Memory Limits: 65536 KB Description GDOI商场推出优惠活动,以超低价出售若干种商品.但是,商场为避免过分亏本,规定某些商品不能同时购买,而且每种超低价商品只能买一件.身为顾客的你想获得最大的实惠,也就是争取节省最多的钱.经过仔细研究,发现商场出售的超低价商品中,不存在以下情况: n(n>=3)种商品C1,C2,-..,Cn,其中Ci,Ci+1是不能同时…

Question: Given a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix. Note that it is the kth smallest element in the sorted order, not the kth distinct element. Example: matrix…

Kth Smallest Element in a BST Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always valid, 1 ≤ k ≤ BST's total elements. Follow up:What if the BST is modified (insert/delete…