P2687 [USACO4.3]逢低吸纳Buy Low, Buy Lower 题目描述 “逢低吸纳”是炒股的一条成功秘诀.如果你想成为一个成功的投资者,就要遵守这条秘诀: "逢低吸纳,越低越买" 这句话的意思是:每次你购买股票时的股价一定要比你上次购买时的股价低.按照这个规则购买股票的次数越多越好,看看你最多能按这个规则买几次. 给定连续的N天中每天的股价.你可以在任何一天购买一次股票,但是购买时的股价一定要比你上次购买时的股价低.写一个程序,求出最多能买几次股票. 以下面这个表为例,…

https://daniu.luogu.org/problemnew/show/2687 求方案数: if(f[j]+1==f[i] && a[j]>a[i]) s[i]+=s[j]; 因为序列相同算作同一种方案,所以把相同序列都集中在第一次出现的地方 if(f[i]==f[j] && a[i]==a[j]) break; #include<cstdio> #include<cstring> #include<iostream> #…

问题描述: "逢低吸纳"是炒股的一条成功秘诀.如果你想成为一个成功的投资者,就要遵守这条秘诀:  "逢低吸纳,越低越买"  这句话的意思是:每次你购买股票时的股价一定要比你上次购买时的股价低.按照这个规则购买股票的次数越多越好,看看你最多能按这个规则买几次.  给定连续的N天中每天的股价.你可以在任何一天购买一次股票,但是购买时的股价一定要比你上次购买时的股价低.写一个程序,求出最多能买几次股票. 以下面这个表为例, 某几天的股价是: 天数 1 2 3 4 5 6…

Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also follow this problems' advice: "Buy low; buy lower" Each time you buy a stock, you must purcha…

第一眼看到题目,感觉水水的,不就是最长下降子序列嘛!然后写……就呵呵了..要判重,还要高精度……判重我是在计算中加入各种判断.这道题比看上去麻烦一点,但其实还好吧.. #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #define rep(i,l,r) for(int i=l;i<r;i++) #define clr(x,c) memset(x,c,si…

BUY LOW, BUY LOWER Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 9244 Accepted: 3226 Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also follo…

Buy Low, Buy Lower The advice to "buy low" is half the formula to success in the stock market. But to be considered a great investor you must also follow this problems' advice: "Buy low, buy lower" That is, each time you buy a stock, y…

BUY LOW, BUY LOWER Time Limit: 1000MS   Memory Limit: 30000K Total Submissions:11148   Accepted: 3920 Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also f…

Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also follow this problems' advice: "Buy low; buy lower" Each time you buy a stock, you must purcha…

题目描述 Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also follow this problems' advice: "Buy low; buy lower" Each time you buy a stock, you must p…