题目链接:http://www.51nod.com/onlineJudge/questionCode.html#!problemId=1050 这道题的最大子段和有两种可能,一种是常规的子段和,另一种是从结尾到开头的一个子段.常规做是一种可能,另一种带循环的则可以认为是序列中间有一段最小子段和,把这段最小子段和去掉,剩下的可能就是最大子段和了. #include <bits/stdc++.h> using namespace std; typedef long long LL; * ; int…
Best Cow Fences Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 14601 Accepted: 4720 Description Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2…