Let’s play a game.We add numbers 1,2...n in increasing order from 1 and put them into some sets. When we add i,we must create a new set, and put iinto it.And meanwhile we have to bring [i-lowbit(i)+1,i-1] from their original sets, and put them into t
Fruit Ninja II Time Limit: 5000MS Memory limit: 65536K 题目描述 Have you ever played a popular game named "Fruit Ninja"? Fruit Ninja (known as Fruit Ninja HD on the iPad and Fruit Ninja THD for Nvidia Tegra 2 based Android devices) is a video game d
题目 解题过程: //物理数学题 #include<stdio.h> #include<string.h> #include<algorithm> using namespace std; int main() { double h,l,v,ans; while(scanf("%lf%lf%lf",&h,&l,&v)!=EOF) { &&l==&&v==)break; ans = h + v *
数学题,始终记得,第一次被带飞师大校赛以及省赛,毫无例外的在数学题上卡死....因此,现在开始,有意识的保留遇见的数学题...(下列知识点按遇见先后顺序排列: 1欧拉公式 欧拉公式的用处是,找出小于N的与N互质的数的个数 公式形式为: N=P1^q1P2^q2...*Pn^qn. φ(N)=N(1-1/P1)(1-1/P2)...(1-1/Pn). 推荐博文:数论基础_欧拉函数 推荐例题:Hdu 1286 找朋友 主要代码: int Euler(int N) { int ans = N; int
Array Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5587 Description Vicky is a magician who loves math. She has great power in copying and creating.One day she gets an array {1}. After that, every day she cop
D. Spongebob and Squares Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/599/problem/D Description Spongebob is already tired trying to reason his weird actions and calculations, so he simply asked you to find all pairs of
题目描述 We know thatIvan gives Saya three problems to solve (Problem F), and this is the firstproblem. "We need a programmer to help us for some projects. If you show us that youor one of your friends is able to program, you can pass the first hurdle. I
ACdreamOJ 1154 Lowbit Sum (数位dp) ACM 题目地址:pid=1154" target="_blank" style="color:rgb(0,136,204); text-decoration:none">ACdreamOJ 1154 题意: long long ans = 0; for(int i = 1; i <= n; i ++) ans += lowbit(i) lowbit(i)的意思是将i转化成二进制
geometry Accepts: 324 Submissions: 622 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description There is a point PP at coordinate (x,y)(x,y). A line goes through the point, and intersects with the posti