Nearest Common Ancestors Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 14902 Accepted: 7963 Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below: In the figure, each…
Network Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 847 Accepted Submission(s): 347 Problem Description The ALPC company is now working on his own network system, which is connecting all…
详细讲解见:https://blog.csdn.net/liangzhaoyang1/article/details/52549822 zz:https://www.cnblogs.com/kuangbin/p/3302493.html /* *********************************************** Author :kuangbin Created Time :2013-9-5 0:09:55 File Name :F:\2013ACM练习\专题学习\LCA…
hdu2586 How far away ? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4183 Accepted Submission(s): 1598 Problem Description There are n houses in the village and some bidirectional roads co…
1.冒泡排序 冒泡排序是最简单也是最容易理解的排序方法,其原理就是重复地走访过要排序的数列,一次比较两个元素,如果他们的顺序错误就把他们交换过来.走访数列的工作是重复地进行直到没有再需要交换,也就是说该数列已经排序完成. # 冒泡排序 def bubbleSort(li): n = len(li) for i in range(n-1): for j in range(n-i-1): if li[j] > li[j+1]: li[j],li[j+1] = li[j+1],li[j] if __…
Connections between cities Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 8857 Accepted Submission(s): 2151 Problem Description After World War X, a lot of cities have been seriously damag…
Closest Common Ancestors Time Limit: 2000MS Memory Limit: 10000K Total Submissions: 13370 Accepted: 4338 Description Write a program that takes as input a rooted tree and a list of pairs of vertices. For each pair (u,v) the program determines the…