/*这道题是没有重边的,求加几条边构成双联通,求边联通分量,先求出桥然后缩点,成一个棵树 找叶子节点的个数*/ #include<stdio.h>//用容器写在3177这个题上会超内存,但是用临界表过了 #include<string.h>/*此代码为临界表代码*/ #define N 5100 struct node { int u,v,next; }bian[N*4]; int dfn[N],low[N],index,f[N*4],n,head[N],yong; int Min…
表格格式为 INT STRING INT INT INT INT INT Id Desc Type SceneId OpenId MaxPliesp ClearancePlies 第1关 - 第2关 第3关 1.先给出用到的字符串处理函数代码 --字符串分割函数 --传入字符串和分隔符,返回分割后的table function string.split(str, delimiter) if str==nil or str=='' or delimiter==nil then return nil…
#coding=utf-8 #左下三角格式输出九九乘法表 for i in range(1,10): for j in range(1,i+1): print "%d*%d=%2d" % (i,j,i*j), print (" ") ''' #杜云峰代码 n = 1 m = 2 while n<10: print '\n' for temp in range(1,m): pr…
SkipList在leveldb以及lucence中都广为使用,是比较高效的数据结构.由于它的代码以及原理实现的简单性,更为人们所接受. 所有操作均从上向下逐层查找,越上层一次next操作跨度越大.其实现是典型的空间换时间. Skip lists are data structures that use probabilistic balancing rather than strictly enforced balancing. As a result, the algorithms for…
BC # 32 1002 题意:给出一个数组 a 和一个数 K ,问是否存在数对( i , j ),使 a i - a i + 1 +……+ (-1)j - i a j : 对于这道题,一开始就想到了是前缀和,但是如果只是记录下前缀和数组,那么查找就会成为一个大问题.补题的时候一开始考虑用 hash 数组或者是 set 存,但是很明显 TLE 了,在翔神的推荐下,我研究了一下 hash表的创建过程,惊奇地发现,其实就是建了一个 HashMap 结构体,而里面放了这个表所用的数组以及相应操作…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1058 Humble Numbers Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 29253 Accepted Submission(s): 12809 Problem Description A number whose only…
In number theory, Euler's totient function φ(n) counts the positive integers up to a given integer n that are relatively prime to n. It can be defined more formally as the number of integers k in the range 1≤k≤n for which the greatest common divisor…
I Hate It Time Limit: 3000MS Memory Limit: 32768 K Problem Description 很多学校流行一种比较的习惯.老师们很喜欢询问,从某某到某某当中,分数最高的是多少. 这让很多学生很反感. 不管你喜不喜欢,现在需要你做的是,就是按照老师的要求,写一个程序,模拟老师的询问.当然,老师有时候需要更新某位同学的成绩. Input 本题目包含多组测试,请处理到文件结束. 在每个测试的第一行,有两个正整数 N 和 M ( 0<N<…
Bob's school has a big playground, boys and girls always play games here after school. To protect boys and girls from getting hurt when playing happily on the playground, rich boy Bob decided to cover the playground using his carpets. Meanwhile, Bob…
Covering Bob's school has a big playground, boys and girls always play games here after school. To protect boys and girls from getting hurt when playing happily on the playground, rich boy Bob decided to cover the playground using his carpets. Meanwh…