B. Creating the Contest time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a problemset consisting of nn problems. The difficulty of the ii-th problem is aiai. It is guaranteed t…

B. Creating the Contest time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a problemset consisting of nn problems. The difficulty of the ii-th problem is aiai. It is guaranteed t…

http://codeforces.com/contest/1029/problem/B You are given a problemset consisting of nn problems. The difficulty of the ii-th problem is aiai. It is guaranteed that all difficulties are distinct and are given in the increasing order. You have to ass…

直接水过 #include<iostream> #include<algorithm> using namespace std; ; int a[maxn]; int n, u,maxx; int main(){ cin>>n; u=; ;i<n;++i)cin>>a[i]; ;i<n-;++i){ >=a[i+]){ ++u; } ; } } maxx=max(maxx, u); cout<<maxx<<endl;…

Description 给你一个单调不下降的长度为n的序列,请你找出一个最长的子序列,满足找出的子序列中,\(A_i<=A_{i-1}~\times~2\),其中i为下标,A为找出的子序列.对于一个长度为\(p\)的子序列,\(i~\in~[1,p-1]\). Input 两行,第一行是原序列的长度\(n\) 第二行是\(n\)个数,代表原序列中的\(n\)个数. Output 一行一个数,代表最长的长度 Sample Input 10 1 2 5 6 7 10 21 23 24 49 Samp…

题意: n<=2e5 思路:可以证明答案一定是极长的一段中取最大值 #include<cstdio> #include<cstring> #include<string> #include<cmath> #include<iostream> #include<algorithm> #include<map> #include<set> #include<queue> #include<v…

题目链接:http://codeforces.com/problemset/problem/1029/B 题目大意:从数组a中选出一些数组成数组b,要求 b[i+1]<=b[i]*2 . 一开始想到的是O(n^2)的动态规划,但是超时了,下面是超时的代码. #include <iostream> using namespace std; const int maxn = 200020; int n, a[maxn], f[maxn], res = 0; int main() { cin…

A. Alex and broken contest time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems…

A. Alex and broken contest time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output One day Alex was creating a contest about his friends, but accidentally deleted it. Fortunately, all the problems…

我的作用:增加罚时. noip380分大佬全程带飞出了10T,可惜被我搞的罚时太高了... 那啥,你会发现java代码有两种风格,嗯两个人,c++自然就是自招大佬了... A:大水题略 B:(不是我写的...而且我还没看,,,对这种题一点兴趣没有 import java.util.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int T =…