Sequence Swapping Time Limit: 1 Second Memory Limit: 65536 KB BaoBao has just found a strange sequence {<, >, <, >, , <, >} of length in his pocket. As you can see, each element <, > in the sequence is an ordered pair, where…
link:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=4027 题意: 有一个括号序列,每个括号对应一个值,现在可以使得相邻的()进行交换,并得到两个值的乘积,问最后能得到的最大值. 思路: 从后向前考虑,取后缀最大值. #include <bits/stdc++.h> using namespace std; #define pb push_back #define fi first #define se seco…
C. Longest Regular Bracket Sequence Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/5/C Description This is yet another problem dealing with regular bracket sequences. We should remind you that a bracket sequence…
Arithmetic Sequence Time Limit: 1 Sec Memory Limit: 128 MBSubmit: 51 Solved: 19[Submit][Status][Web Board] Description Giving a number sequence A with length n, you should choosingm numbers from A(ignore the order) which can form an arithmetic sequ…
BaoBao has just found a strange sequence {<, >, <, >, , <, >} of length in his pocket. As you can see, each element <, > in the sequence is an ordered pair, where the first element in the pair is the left parenthesis '(' or the rig…
题目链接:http://poj.org/problem?id=1141 题解:求已知子串最短的括号完备的全序列 代码: #include<iostream> #include<cstdio> #include<algorithm> #include<cstring> using namespace std; #define ll long long ; const int INF=0x3f3f3f3f; ][]; ][]; ]; int Find(int x…
