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全部文章（共62篇）

Codeforces Round #556 (Div. 2) B. Tiling Challenge

output standard output One day Alice was cleaning up her basement when she noticed something very curious: an infinite set of wooden pieces! Each pi...

2019-04-30

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Codeforces Round #556 (Div. 2) C. Prefix Sum Primes

We're giving away nice huge bags containing number tiles! A bag we want to present to you contains n tiles. Each of them has a single number written o...

2019-04-30

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Sequence in the Pocket

DreamGrid has just found an integer sequence in his right pocket. As DreamGrid is bored, he decides to play with the sequence. He can perform the foll...

2019-04-28

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Welcome Party

The 44th World Finals of the International Collegiate Programming Contest (ICPC 2020) will be held in Moscow, Russia. To celebrate this annual event f...

2019-04-27

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Singing Everywhere

Baobao loves singing very much and he really enjoys a game called Singing Everywhere, which allows players to sing and scores the players according to...

2019-04-27

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Fibonacci in the Pocket

DreamGrid has just found a Fibonacci sequence and two integers and in his right pocket, where indicates the -th element in the Fibonacci sequence. Pl...

2019-04-27

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Abbreviation

In the Test of English as a Foreign Language (TOEFL), the listening part is very important but also very hard for most students since it is usually qu...

2019-04-27

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Lucky 7 in the Pocket

BaoBao loves number 7 but hates number 4, so he refers to an integer as a "lucky integer" if is divisible by 7 but not divisible by 4. For e...

2019-04-27

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Codeforces Round #555 (Div. 3) C2. Increasing Subsequence (hard version)

The only difference between problems C1 and C2 is that all values in input of problem C1 are distinct (this condition may be false for problem C2). Y...

2019-04-27

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Codeforces Round #554 (Div. 2) B - Neko Performs Cat Furrier Transform

output standard output Cat Furrier Transform is a popular algorithm among cat programmers to create longcats. As one of the greatest cat programmers...

2019-04-25

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