## NOIP-2011-J1-real problem analysis

1, Multiple choice questions
1. B. basic problem, investigate binary operation 2. B, basic question, 48 + 9 = 57 3. C, basic questions, storage space calculation, 8GB/2MB=8*1024/2=4096 4. C, basic questions, basic computer knowledge, Moore's law 5. B. according to the meaning of the question, any two of the seven vertices have exactly one edge ...

Posted by **Zomie** on *Thu, 18 Nov 2021 16:44:31 -0800*

## 17-09-02 (public key box *)

The liver lasted eight hours. Finally straightened out the solution of this problem, and found the biggest problem recently. It's bad, it's delicious, but it's worth it.
Self summary
1. If you can't do it, don't think about whether multiple cycles work or not. Let's talk about it first. 2. I got 30 points for the first time, but the runni ...

Posted by **mezise** on *Fri, 29 Oct 2021 06:52:21 -0700*

## csp-s2020 T1 Julian day

Title: [CSP-S2020] Julian day - Valleyhttps://www.luogu.com.cn/problem/P7075
After reading the question, we can see that this question is a simulation question about time.
According to the meaning of the question:
The time is divided into two periods: the Julian calendar from January 1, 4713 BC to October 4, 1582 ad (inclusive); October 15 ...

Posted by **tmswenson** on *Tue, 19 Oct 2021 19:02:08 -0700*

## CSP 2021-09-2 non zero segment division problem solution

Title Link
The original question is linked in Non zero segment division , I won't post the title. Given an array, you can divide the array into as many continuous non-zero segments as possible by changing the number below the threshold into 0.
Topic analysis
A very direct idea is: there are m different non-zero values in the array with l ...

Posted by **AaZmaN** on *Fri, 01 Oct 2021 17:05:23 -0700*

## CSP-J2020 semi-finals solution

CSP-J rematch tutorial: , don't miss the semi-finals.
T1: excellent power
Title Description
Generally speaking, a positive integer can be divided into the sum of several positive integers. For example, 1 = 1, 10 = 1 + 2 + 3 + 4, etc. For a specific split of positive integer n, we call it "excellent" if and only if under this split ...

Posted by **archangel_617b** on *Wed, 22 Sep 2021 05:34:10 -0700*