纯公式推导。。。,不谢。。 Simple calculations The Problem 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 for each i=1
d Simple calculations The Problem 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 for each i=1, 2, ..., n.
Simple calculations The Problem 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 for each i=1, 2, ..., n. You
题目链接:LightOJ 1032 - Fast Bit Calculations 代码 #include <cstdio>#include <cstring>#include <algorithm>using namespace std;typedef long long ll;const int maxn = 50;ll dp[maxn + 5][maxn + 5][2];int
10014 - Simple calculations Time limit: 3.000 seconds http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=99&page=show_problem&problem=955 The Problem There is a s