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Patch Problem description There are always errors in a program. The company often releases patches to correct these errors. Unfortunately, when correcting some errors with each patch, some errors will be added at the same time. Each patch has a certain running time. A company published a game with n errors B={b1,b2,b3,..., bn}, so the comp ...

Some content sources: bestsort blog Recommended blog: CSDN: Nangong Yichen - thoroughly understand the two-dimensional tree array CSDN: Lv1_kangdi - 2D tree array summary and template The one-dimensional tree array sum[x] records the prefix and length of lowbit(x) from 1 to X The two-dimensional tree array sum [x] [y] records the sum of area ...

First of all, there was no interesting thinking problem after the fight. Instead, it was mainly simulated code farming problem, which was very annoying (referring to being a code farmer in the middle of the night)...... A. Square String? (violence) Judge parity and compare violence #include <bits/stdc++.h> #define ll long long #defin ...

Byte 8.29 written test replay (in question recall) Question 1 natural numbers a and b Simple topic meaning Give the number a and B, and then give a number + 1 in the first round, a number + 2 in the second round, and a number + i in the i round. You can choose which number to add in each round. Ask you to become the same minimum number of ro ...

https://codeforces.com/contest/1569/problem/C Meaning: n numbers. Every time it passes through a number, it will be - 1. If no number is continuously reduced twice when all numbers are reduced, such a sequence is called a good sequence. Find the number of all good sequences. The answer is mod998244353 Solution: We can find that no matter wh ...