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codeforces

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全部文章 / codeforces （共323篇）

Vasya And The Matrix CodeForces - 1016D （思维+构造）

Now Vasya is taking an exam in mathematics. In order to get a good mark, Vasya needs to guess the matrix that the teacher has constructed! Vasya k...

2019-05-02

0 293

Binary Numbers AND Sum CodeForces - 1066E （前缀和）

You are given two huge binary integer numbers aa and bb of lengths nn and mmrespectively. You will repeat the following process: if b>0b>0, then...

2019-05-02

0 399

Binary Numbers AND Sum CodeForces - 1066E （前缀和）

You are given two huge binary integer numbers aa and bb of lengths nn and mmrespectively. You will repeat the following process: if b>0b>0, then...

2019-05-02

0 287

Mysterious Crime CodeForces - 1043D (思维+组合数学)

Acingel is a small town. There was only one doctor here — Miss Ada. She was very friendly and nobody has ever said something bad about her, so who cou...

2019-05-02

0 422

Mysterious Crime CodeForces - 1043D (思维+组合数学)

Acingel is a small town. There was only one doctor here — Miss Ada. She was very friendly and nobody has ever said something bad about her, so who cou...

2019-05-02

0 270

Divisibility by 25 CodeForces - 988E （技巧的暴力）

You are given an integer nn from 11 to 10181018 without leading zeroes. In one move you can swap any two adjacent digits in the given number in such ...

2019-04-24

0 365

Divisibility by 25 CodeForces - 988E （技巧的暴力）

You are given an integer nn from 11 to 10181018 without leading zeroes. In one move you can swap any two adjacent digits in the given number in such ...

2019-04-24

0 303

Fire Again CodeForces - 35C （BFS）

After a terrifying forest fire in Berland a forest rebirth program was carried out. Due to it N rows with M trees each were planted and the rows were ...

2019-04-21

0 663

Fire Again CodeForces - 35C （BFS）

After a terrifying forest fire in Berland a forest rebirth program was carried out. Due to it N rows with M trees each were planted and the rows were ...

2019-04-21

0 273

Debate CodeForces - 1070F （贪心）

Elections in Berland are coming. There are only two candidates — Alice and Bob. The main Berla*** channel plans to show political debates. There are ...

2019-04-21

0 458