D. Time to go back time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have been out of Syria for a long time, and you recently decided to come back. You remember that you have M friends th…

D. Time to go back time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output You have been out of Syria for a long time, and you recently decided to come back. You remember that you have M friends th…

D - Time to go back Gym - 100952D http://codeforces.com/gym/100952/problem/D D. Time to go back time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have been out of Syria for a long time, a…

 Gym 101047K Training with Phuket's larvae Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Practice Description standard input/output Thai cuisine is known for combining seasonings so that every dish has flavors that are…

http://codeforces.com/gym/101047/problem/K 题目:给定n<=2000条绳子,要你找出其中三条,围成三角形,并且要使得围成的三角形面积最小 思路: 考虑一下三角形面积公式1/2a*b*sinO ,那么可以暴力枚举两条边,第三条边要尽量小,为什么呢?因为我要使得O角尽量小.sin值也小了.这是根据小边对小角得到的.所以要找到第一条>a-b的.这样就能使结果最优.这个找可以用二分啦.同理找一个<a+b的 #include <cstdio>…

G. Training Camp[ Color: Yellow ]Montaser is planning to train very hard for ACM JCPC 2015; he has prepared a list with n topicsto study in the next n days, one topic every day.Montaser knows that some topics depend on other topics, so he asked coach…

题面 题意:如果一个字符串的最小表示法是他自己,他就是一个Lyndon Word. 例如  aabcb 他的循环串有 abcba  bcbaa cbaab baabc 其中字典序最小的是他自己 现在给你n,m表示用前m个字符(从a开始),拼成长度不超过n的字符串中,输出字典序排列的的  l->r 的串 l<=r<=1e7   r-l<=1e5 题解:我们根据样例 n=4 m=3可以看出,一共32个:a, aaab, aaac, aab, aabb, aabc, aac, aacb,…

Gym - 101915A  Printing Books 题意:有一本书,从第X页开始,一共用了n位数字,求此书一共多少页.99就是两位数字,100就是三位数字. 思路:直接模拟即可,我用了一个high和一个low,因为我把数字按位数分成了几个部分,1-9,10-99,100-999等(实际上high会等于1000),这样就会low = 100,high = 999之类的了,如果遇到边界,比如刚开始时,low和high有所调整,比如low=x,high=999,以方便计算. #include<…

2016 Al-Baath University Training Camp Contest-1 A题:http://codeforces.com/gym/101028/problem/A 题意:比赛初始值是1500,变化了几次,得到的正确结果和bug后的是否相等.(Tourist大佬好 Y(^o^)Y) #include <bits/stdc++.h> using namespace std; int main() { int t; cin>>t; while(t--) { in…

题目链接:http://codeforces.com/gym/100283/problem/F F. Bakkar In The Army time limit per test 2 seconds memory limit per test 256 megabytes input army.in output standard output Bakkar is now a senior college student studying computer science. And as many…