#include <cstdio>#define LL long long LL finmo=999911659; LL fac[4][40001],inv[4][40001]; LL tmp[4],rev[4]; LL n,g,x,y; const LL mo[4]
https://www.u72.net/daima/k617.html - 2024-08-14 15:02:52 - 代码库题意:1,3是完美数,如果a,b是完美数,则2&#43;a*b&#43;2*a&#43;2*b,判断给出的n是否是完美数。解法:开始只看出来2&#43;a*b&#43;2*a&#43;2*b=(a&#43;2)*(b&#43
https://www.u72.net/daima/dws5.html - 2024-07-08 01:46:09 - 代码库题目链接:10620 - A Flea on a Chessboard题目大意:在一个国际象棋的棋盘上,以左下角作为坐标轴建立坐标系,并且左下角的&#26684;子为黑色,每个&#26684;子边
https://www.u72.net/daima/crn8.html - 2024-07-10 22:59:31 - 代码库题目链接:uva 11490 - Just Another Problem题目大意:有n个士兵,要排列成一个方阵,要求方阵尽量大,于是在方正的中间会空出两个正方形的区域,空出来的局域要
https://www.u72.net/daima/ck3e.html - 2024-07-10 19:08:46 - 代码库题目连接:uva 467 - Synching Signals题目大意:有n个红绿灯,给出红灯的时间t,那么该灯从0时刻开始就以2*t为周期绿黄红三灯交替,时间分别为t-5,5,t。问所这n个
https://www.u72.net/daima/cr89.html - 2024-07-10 23:45:39 - 代码库定义欧拉函数f(n)表示小于n并且与n互质的数的个数f(n)=n(1?1p1)(1?1p2)…(1?1pk)(pi为n的质因子)代码C&#43;&#43; 单个处理int eulerPhi(int n) {
https://www.u72.net/daima/f8uw.html - 2024-07-10 11:38:44 - 代码库题目链接:uva 1069 - Always an integer题目大意:给出一个多次多项式,问说是否对于任意正整数n来说结构均为整数。解题思路:首先处理出字符串,然后枚举n从1
https://www.u72.net/daima/f8x6.html - 2024-07-10 11:44:39 - 代码库题目连接:uva 766 - Sum of powers题目大意:将Sk(n)=∑i=1nik化简成Sk(n)=ak&#43;1nk&#43;1&#43;aknk&#43;?&#43;a0M解题思路:已知幂k,并且有(n&#43;1)k=C(
https://www.u72.net/daima/f37e.html - 2024-07-10 07:36:33 - 代码库计数Time Limit:0MS Memory Limit:0KB 64bit IO Format:%lld & %lluSubmit Status Practice SCU 2090Description 给定空间里n个点,其中没有三
https://www.u72.net/daima/szvh.html - 2024-08-19 20:46:57 - 代码库POJ3252问题重述:求解在区间[start, finish]之间的Round Number的数目。所谓Round Number指的是,二进制表示中0的位数大于等于1的位数的整数。分析:1.假如
https://www.u72.net/daima/w5e9.html - 2024-07-16 11:35:32 - 代码库POJ1850问题重述:用26个小写字母进行编码,编码规则如下:1)每个编码中前一个字母必须小于后一个字母2)编码按照长度从小到大排列,相同长度按字典序进行排列输
https://www.u72.net/daima/w7n6.html - 2024-07-16 12:33:28 - 代码库N!AgainTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3440 Accepted Submission(s)
https://www.u72.net/daima/wcw4.html - 2024-07-16 00:55:43 - 代码库(1)螺旋管vertices = D1:720 D2:72u = from 0 to (10*PI) D1v = from 0 to (2*PI) D2a = 3x = (a + cos(v)) * cos(u)z = (a + cos(v)) * sin(u)y = si
https://www.u72.net/daima/wecv.html - 2024-07-16 15:23:52 - 代码库(1)圆柱面vertices = dimension1:72 dimension2:72u = from 0 to (2*PI) dimension1v = from (-5) to (5) dimension2r = 5x = r*cos(u)y = vz = r*sin
https://www.u72.net/daima/wec9.html - 2024-07-16 15:24:41 - 代码库题意:有n个人,选不少于一个人参加比赛,其中一人当队长,有多少种选择方案。思路:我们首先C(n,1)选出一人当队长,然后剩下的 n-1 人组合的总数为2^(n-1),这里用
https://www.u72.net/daima/xzz0.html - 2024-08-26 15:44:40 - 代码库HDU 4909 String题目链接题意:给定一个字符串全是小写字符,可能有一个位置为?,问号可以替代任何字符,也可以删掉,问有多少连续字串满足所有字母是偶数个思路
https://www.u72.net/daima/v9rm.html - 2024-07-15 15:03:15 - 代码库题目链接:http://poj.org/problem?id=3399ProductTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 2837 Accepted: 686 Special JudgeDesc
https://www.u72.net/daima/vean.html - 2024-07-15 15:36:15 - 代码库http://poj.org/problem?id=2002只能说hash比二分快很多。随便一个hash函数都可以完爆二分。判断是否存在正方形思路如下:1、枚举任意两个点,作为正方
https://www.u72.net/daima/xz0s.html - 2024-08-26 16:29:19 - 代码库题意:就是 把编号从0-n的小球对应放进i%a编号的盒子里,然后又买了新盒子, 现在总共有b个盒子,Bob想把球装进i%b编号的盒子里。求重置的最小花
https://www.u72.net/daima/rh13.html - 2024-07-11 18:18:21 - 代码库上一节讲的三叶结,举一反三,由三可到无穷,这一节讲N叶结再次看下三叶结的公式:x = sin(t) + 2*sin(2*t)y = cos(t) - 2*cos(2*t)将其改为:x = sin(t)
https://www.u72.net/daima/rkv8.html - 2024-07-11 19:01:40 - 代码库