Bi表示第i个块,那么就是说Bi max ≤ Bi+1 min,又因为Bi min ≤ Bi max, 因此只要判断前缀的最大值是否小于等于后缀. #include<bits/stdc++.h> using namespace std; typedef long long ll; ; int h[maxn], n; int mn[maxn]; //#define LOCAL int main() { #ifdef LOCAL freopen("in.txt","r…

C. Day at the Beach One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends were unable to ride waves. However, they decided to spent their time building sand castles. At the end of the…

Day at the Beach time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends wer…

预处理一下i到n的最小值. #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; int n; +]; +]; int ans; int main() { scanf("%d",&n); ;i<=n;i++) scanf("%d",&a[i]); Min[n]=a[n]…

题意:有n个数,将其分组使整个数列排序后每组中的数仍在该组中,求最多的分组数. 代码很易懂 #include <iostream> #include <algorithm> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <ctime> using namespace std; pair<]; int…

codeforces 599c C. Day at the Beach One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends were unable to ride waves. However, they decided to spent their time building sand castles. At…

Bahosain is walking in a street of N blocks. Each block is either empty or has one lamp. If there is a lamp in a block, it will light it’s block and the direct adjacent blocks. For example, if there is a lamp at block 3, it will light the blocks 2, 3…

e,还是写一下这次的codeforce吧...庆祝这个月的开始,看自己有能,b到什么样! cf的第二题,脑抽的交了错两次后过了pretest然后system的挂了..脑子里还有自己要挂的感觉,果然回头一小改就过了! 只能呵呵...C题还是看了下,又没写,也许写不出吧...的确时候还是看了别人的额,自己写只到第8组WA! 希望下次少,一点! 哎,等我不,b了这个世界也许都不同了!…

C. Day at the Beach Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/599/problem/C Description One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends were unab…

D. Duff in Beach Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/588/problem/D Description While Duff was resting in the beach, she accidentally found a strange array b0, b1, ..., bl - 1 consisting of l positive integers. Th…