# [Codeforces #312 div2 A]Lala Land and Apple Trees 首先,此题的大意是在一条坐标轴上,有\(n\)个点,每个点的权值为\(a_{i}\),第一次从原点开始走,方向自选(<- or ->),在过程中,若遇到一个权值>0的点,则将此权值计入答案,并归零.当次.此方向上的所有点均为0后,输出此时的答案. 然后,进行分析: 我们很容易想到这是一个贪心,我们将正的和负的分别存入两个数组,最初的方向为: \(zhengsum > fusum…
[CF简单介绍] 提交链接:A. Lala Land and Apple Trees 题面: A. Lala Land and Apple Trees time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr lives in Lala Land. Lala Land is a very beautiful country tha…
A. Lala Land and Apple Trees Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/558/problem/A Description Amr lives in Lala Land. Lala Land is a very beautiful country that is located on a coordinate line. Lala Land is famous…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Amr lives in Lala Land. Lala Land is a very beautiful country that is located on a coordinate line. Lala Land is famous with its apple trees grow…
Amr lives in Lala Land. Lala Land is a very beautiful country that is located on a coordinate line. Lala Land is famous with its apple trees growing everywhere. Lala Land has exactly n apple trees. Tree number i is located in a position xi and has ai…
题目链接: A. Lala Land and Apple Trees time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr lives in Lala Land. Lala Land is a very beautiful country that is located on a coordinate line. Lala L…
A. Lala Land and Apple Trees time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Amr lives in Lala Land. Lala Land is a very beautiful country that is located on a coordinate line. Lala Land is…
一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given n, how many structurally unique BST's (binary search trees) that store values 1-n? For example, Given n = 3, there are a total of 5 unique BST's. (二)解题…
Problem Statement You are given two ints: n and m. Let D be the number of permutations of the set {1,2,-,n+m} such that the first m values are not fixed points of the permutation. Formally, we are interested in permutations p such that for each j bet…
Problem Statement Alice has a string s of lowercase letters. The string is written on a wall. Alice also has a set of cards. Each card contains a single letter. Alice can take any card and glue it on top of one of the letters of s. She may use any su…
