2069. Hard Rock Time limit: 1.0 secondMemory limit: 64 MB Ilya is a frontman of the most famous rock band on Earth. Band decided to make the most awesome music video ever for their new single. In that music video Ilya will go through Manhattan standi…

题意:给定 n + m 个街道,问你从左上角走到右下角的所有路的权值最小的中的最大的. 析:我们只要考虑几种情况就好了,先走行再走列和先走列再走行差不多.要么是先横着,再竖着,要么是先横再竖再横,要么是先横再竖再横再竖,全考虑一下就好了. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000") #include <cstdio> #include <string> #include <cs…

题解及证明:http://www.cnblogs.com/StupidBoy/p/5241258.html #include<cstdio> #include<algorithm> using namespace std; int n,m,a[100100],b[100100]; int main() { //freopen("h.in","r",stdin); scanf("%d%d",&n,&m); f…

http://acm.timus.ru/problem.aspx?space=1&num=1936 F - Roshambo Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice URAL Description Bootstrap: Wondering how it's played? Will: It's a game of deception. But y…

题目链接 题意:求给定的字符串的最长回文子串 分析:做法是构造一个新的字符串是原字符串+反转后的原字符串(这样方便求两边回文的后缀的最长前缀),即newS = S + '$' + revS,枚举回文串中心位置,RMQ询问LCP = min (height[rank[l]+1] to height[rank[r]]),注意的是RMQ传入参数最好是后缀的位置,因为它们在树上的顺序未知,且左边还要+1. #include <cstdio> #include <algorithm> #in…

2071. Juice Cocktails Time limit: 1.0 secondMemory limit: 64 MB Once n Denchiks come to the bar and each orders a juice cocktail. It could be from 1 to 3 different juices in each cocktail. There are three juices in the bar: apple, banana and pineappl…

2073. Log Files Time limit: 1.0 secondMemory limit: 64 MB Nikolay has decided to become the best programmer in the world! Now he regularly takes part in various programming contests, attentively listens to problems analysis and upsolves problems. But…

2070. Interesting Numbers Time limit: 2.0 secondMemory limit: 64 MB Nikolay and Asya investigate integers together in their spare time. Nikolay thinks an integer is interesting if it is a prime number. However, Asya thinks an integer is interesting i…

2068. Game of Nuts Time limit: 1.0 secondMemory limit: 64 MB The war for Westeros is still in process, manpower and supplies are coming to an end and the winter is as near as never before. The game of thrones is unpredictable so Daenerys and Stannis…

2067. Friends and Berries Time limit: 2.0 secondMemory limit: 64 MB There is a group of n children. According to a proverb, every man to his own taste. So the children value strawberries and raspberries differently. Let’s say that i-th child rates hi…