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题解：2024牛客暑期多校第5场——C [骰]

英文题干 wzj is working on a cloze test. For those who are not familiar with cloze tests, here is an introduction: A cloze test consists of n questions, e...

C++ 动态规划概率论容斥

2024-08-01

0 151

题解：2024牛客暑期多校第5场——E [安]

英文题干 In the dream, May and Ray returned to the side of the little jellyfish. They continued to play their unique game just as they used to. May and Ra...

C++

2024-07-30

0 131

题解：2024牛客暑期多校第4场——A [LCT]

英文题干 Note the unusual memory limit for this problem. Given a rooted tree with n nodes and n-1 edges. The i-th edge can be described by , which represe...

C++ 并查集

2024-07-25

0 319

题解：2024牛客暑期多校第4场——H [Yet Another Origami Problem]

英文题干 Fried-chicken hates origami problems! He always fails at solving origami problems that others can solve easily (for example, CF1966E and HDU6822)...

C++ 思维 GCD

2024-07-25

2 287

题解：2024牛客暑期多校第4场——C [Sorts]

英文题干 Given a permutation of length n. In one operation, you can choose at most four elements from the permutation and swap their positions arbitrarily...

C++

2024-07-25

1 177

题解：2024牛客暑期多校第4场——I [Friends]

英文题干 There are n people standing in a line, numbered from 1 to n from left to right. Among these people, there are m pairs of friends. Define an inter...

C++ 思维

2024-07-25

0 239

题解：2024牛客暑期多校第4场——G [Horse Drinks Water]

英文题干 This problem is a variant of the General’s Horse Drinking Water problem. Given that the general’s horse is at point , the tent is at point , and ...

C++

2024-07-25

0 208

题解：2024牛客暑期多校第3场——A [Bridging the Gap 2]

英文题干 A group of n walkers arrives at a riverbank at night. They want to cross the river using a boat which is initially on their side. The boat can ho...

C++ 数学贪心

2024-07-24

6 323

题解：2024牛客暑期多校第3场——B [Crash Test]

英文题干 After five years, the most high-profile event in motor racing, Formula 1, returns to China. The Chinese Grand Prix was recently held at the Shang...

C++ GCD

2024-07-24

4 443

题解：2024牛客暑期多校第3场——L [Sudoku and Minesweeper]

英文题干 Sudoku is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each...

C++

2024-07-24

2 225