推公式/二分法 好题! 题解:http://blog.csdn.net/zck921031/article/details/7690288 这题明显是一个方程组……可以推公式推出来…… 然而这太繁琐了!发现a[i]是满足单调性的话,我们就可以二分a[1],递推出a[n+1],进行验证…… 思维复杂度比推公式低到不知哪里去了,真是一种优秀的算法(然而我想不到,并没有什么*用……) Source Code Problem: User: sdfzyhy Memory: 736K Time: 16MS…

UVA - 10014 Simple calculations Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu id=19100" style="color:blue">Submit Status Description  Simple calculations  id=19100" style="color:blue">The Pro…

Simple calculations Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6559   Accepted: 3291 Description There is a sequence of n+2 elements a0, a1, ..., an+1 (n <= 3000, -1000 <= ai <=1000). It is known that ai = (ai-1 + ai+1)/2 - ci f…

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=955 根据递推公式推倒出a1的公式. a1=(n*a0+an+1-2*(n*c1+(n-1)*c2+...+cn))/(n+1); #include <cstdio> #include <cstring> #include <algorithm> #defi…

Description 有一个包括n+2个元素的数列a0, a1, ..., an+1 (n <= 3000, -1000 <= ai <=1000).它们之间满足ai = (ai-1 + ai+1)/2 - ci (i=1, 2, ..., n).如今给出a0, an+1, c1, ... , cn..请编敲代码计算出a1. Input 输入的第一行是一个整数n. 接下去的两行各自是a0和an+1,(精确到小数点后两位)再接下去的n行是ci(精确到小数点后两位).每一个数字占一行. O…

Send a TableInput: Standard Input Output: Standard Output When participating in programming contests, you sometimes face the following problem: You know how to calcutale the output for the given input values, but your algorithm is way too slow to eve…

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Sorting, filtering, paging, and grouping 7 of 8 people found this helpful By Tom Dykstra The Contoso University sample web application demonstrates how to create ASP.NET Core 1.0 MVC web applications using Entity Framework Core 1.0 and Visual Studio…

Send a Table Input: Standard Input Output: Standard Output When participating in programming contests, you sometimes face the following problem: You know how to calcutale the output for the given input values, but your algorithm is way too slow to ev…

send a table When participating in programming contests, you sometimes face the following problem: You knowhow to calcutale the output for the given input values, but your algorithm is way too slow to everpass the time limit. However hard you try, yo…