Simple Function Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 111    Accepted Submission(s): 31 Problem Description Knowing that x can be any real number that x2 + Dx + E ≠ 0. Now, given the f…

hdu 2451 Simple Addition Expression Problem Description A luxury yacht with 100 passengers on board is sailing on the sea in the twilight. The yacht is ablaze with lights and there comes out laughers and singing from the hall where an evening party i…

Simple Function Time Limit: 2 Seconds       Memory Limit: 32768 KB Knowing that x can be any real number that x2 + Dx + E ≠ 0. Now, given the following function y = f(x) = Ax2 + Bx+ C ------------------- x2 + Dx + E What is the range of y. Input The…

HDU 4291 A Short problem(2012 ACM/ICPC Asia Regional Chengdu Online) 题目链接http://acm.hdu.edu.cn/showproblem.php?pid=4291 Description 给一个式子求结果.类似Fibonacci的公式g(n)=3*g(n-1)+g[n-2]. Input 给你n(1<=n<=1e18) Output 求g(g(g(n))) Sample Input 样例第一个就是0什么鬼,虽然没影响.…

普通的数位DP计算回文串个数 /* HDU 6156 - Palindrome Function [ 数位DP ] | 2017 中国大学生程序设计竞赛 - 网络选拔赛 2-36进制下回文串个数 */ #include <bits/stdc++.h> using namespace std; #define LL long long int t, L, R, l, r, base; int dig[40], tmp[40]; LL dp[40][40][40][2]; LL DFS(int p…

/* HDU 6050 - Funny Function [ 公式推导,矩阵快速幂 ] 题意: F(1,1) = F(1, 2) = 1 F(1,i) = F(1, i-1) + 2 * F(1, i-2) , i >= 3 F(i, j) = ∑ F(i-1, j) , k∈[j, j+N-1] 给定 N, M < 2^63, 求 F(M,1) 分析: ∵ F(2,1) = F(1,1) + F(1,2) + ... + F(1,N) F(2,2) = F(2,1) + F(1,N+1) -…

2018 HDU多校第三场赛后补题 从易到难来写吧,其中题意有些直接摘了Claris的,数据范围是就不标了. 如果需要可以去hdu题库里找.题号是6319 - 6331. L. Visual Cube 题意: 在画布上画一个三维立方体. 题解: 模拟即可. 代码: #include <bits/stdc++.h> using namespace std; int a, b, c, R, C; char g[505][505]; int main () { int T; cin >>…

A Simple Math Problem Lele now is thinking about a simple function f(x).If x < 10 f(x) = x.If x >= 10 f(x) = a0 * f(x-1) + a1 * f(x-2) + a2 * f(x-3) + -- + a9 * f(x-10);And ai(0<=i<=9) can only be 0 or 1 .Now, I will give a0 ~ a9 and two posit…

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2018 HDU多校第四场赛后补题 自己学校出的毒瘤场..吃枣药丸 hdu中的题号是6332 - 6343. K. Expression in Memories 题意: 判断一个简化版的算术表达式是否合法. 题解: 注意细节即可. 代码: #include <bits/stdc++.h> using namespace std; int n; char s[505]; int main () { int T; cin>>T; for ( ; T; --T) { scanf(&quo…