Codeforces - 随笔分类(第10页) - onlyblues

摘要：C. Swap Game Alice and Bob are playing a game on an array

a

$a$ of

n

$n$ positive integers. Alice and Bob make alternating moves with Alice going first. I 阅读全文

posted @ 2022-11-12 18:09 onlyblues 阅读(49) 评论(0) 推荐(0) 编辑

C1. Sheikh (Easy version)

摘要：C1. Sheikh (Easy version) This is the easy version of the problem. The only difference is that in this version

q = 1

$q=1$ . You are given an array of intege 阅读全文

posted @ 2022-10-28 14:31 onlyblues 阅读(64) 评论(0) 推荐(0) 编辑

D. Factorial Divisibility

摘要：D. Factorial Divisibility You are given an integer

x

$x$ and an array of integers

a_{1}, a_{2}, \dots, a_{n}

$a_1,a_2, \dots ,a_n$ . You have to determine if the number $a_1!+a_2!+ 阅读全文

posted @ 2022-10-27 23:16 onlyblues 阅读(103) 评论(0) 推荐(1) 编辑

F. MEX vs MED

摘要：F. MEX vs MED You are given a permutation

p_{1}, p_{2}, \dots, p_{n}

$p_1,p_2, \dots ,p_n$ of length

n

$n$ of numbers

0, \dots, n - 1

$0, \dots ,n−1$ . Count the number of subsegments $1 \leq l \l 阅读全文

posted @ 2022-10-26 11:35 onlyblues 阅读(87) 评论(0) 推荐(0) 编辑

E. FTL

摘要：E. FTL Monocarp is playing a video game. In the game, he controls a spaceship and has to destroy an enemy spaceship. Monocarp has two lasers installed 阅读全文

posted @ 2022-10-25 17:32 onlyblues 阅读(52) 评论(0) 推荐(0) 编辑

C1. Make Nonzero Sum (easy version)

摘要：C1. Make Nonzero Sum (easy version) This is the easy version of the problem. The difference is that in this version the array can not contain zeros. Y 阅读全文

posted @ 2022-10-24 23:22 onlyblues 阅读(70) 评论(0) 推荐(0) 编辑

D1. Balance (Easy version)

摘要：D1. Balance (Easy version) This is the easy version of the problem. The only difference is that in this version there are no "remove" queries. Initial 阅读全文

posted @ 2022-10-24 16:53 onlyblues 阅读(198) 评论(0) 推荐(0) 编辑

B. Ugu

摘要：B. Ugu A binary string is a string consisting only of the characters

0

$0$ and

1

$1$ . You are given a binary string

s_{1} s_{2} \dots s_{n}

$s_1 s_2 \dots s_n$ . It is necessary t 阅读全文

posted @ 2022-10-24 15:32 onlyblues 阅读(107) 评论(0) 推荐(0) 编辑

A. Bestie

摘要：A. Bestie You are given an array

a

$a$ consisting of

n

$n$ integers

a_{1}, a_{2}, \dots, a_{n}

$a_1,a_2, \dots ,a_n$ . Friends asked you to make the greatest common divisor (GCD) of 阅读全文

posted @ 2022-10-23 23:24 onlyblues 阅读(82) 评论(0) 推荐(0) 编辑

D. Problem with Random Tests

摘要：D. Problem with Random Tests You are given a string

s

$s$ consisting of

n

$n$ characters. Each character of

s

$s$ is either

0

$0$ or

1

$1$ . A substring of

s

$s$ i 阅读全文

posted @ 2022-10-22 10:19 onlyblues 阅读(100) 评论(1) 推荐(2) 编辑

C. Save the Magazines

摘要：C. Save the Magazines Monocarp has been collecting rare magazines for quite a while, and now he has decided to sell them. He distributed the magazines 阅读全文

posted @ 2022-10-21 23:20 onlyblues 阅读(136) 评论(0) 推荐(0) 编辑

E2. Divisible Numbers (hard version)

摘要：E2. Divisible Numbers (hard version) This is an hard version of the problem. The only difference between an easy and a hard version is the constraints 阅读全文

posted @ 2022-10-19 20:12 onlyblues 阅读(92) 评论(0) 推荐(0) 编辑

E1. Divisible Numbers (easy version)

摘要：E1. Divisible Numbers (easy version) This is an easy version of the problem. The only difference between an easy and a hard version is the constraints 阅读全文

posted @ 2022-10-19 19:37 onlyblues 阅读(284) 评论(0) 推荐(3) 编辑

F. Multi-Colored Segments

摘要：F. Multi-Colored Segments Dmitry has

n

$n$ segments of different colors on the coordinate axis

O x

$Ox$ . Each segment is characterized by three integers $l_ 阅读全文

posted @ 2022-10-15 19:52 onlyblues 阅读(92) 评论(0) 推荐(0) 编辑

E. Sending a Sequence Over the Network

摘要：E. Sending a Sequence Over the Network The sequence

a

$a$ is sent over the network as follows: sequence

a

$a$ is split into segments (each element of the 阅读全文

posted @ 2022-10-13 12:01 onlyblues 阅读(116) 评论(0) 推荐(0) 编辑

D. Equal Binary Subsequences

摘要：D. Equal Binary Subsequences Everool has a binary string

s

$s$ of length

2 n

$2n$ . Note that a binary string is a string consisting of only characters

0

$0$ a 阅读全文

posted @ 2022-10-11 19:37 onlyblues 阅读(120) 评论(0) 推荐(0) 编辑

C1. Good Subarrays (Easy Version)

摘要：C1. Good Subarrays (Easy Version) This is the easy version of this problem. In this version, we do not have queries. Note that we have multiple test c 阅读全文

posted @ 2022-10-11 16:08 onlyblues 阅读(152) 评论(0) 推荐(0) 编辑

B. Playing with GCD

摘要：B. Playing with GCD You are given an integer array

a

$a$ of length

n

$n$ . Does there exist an array

b

$b$ consisting of

n + 1

$n+1$ positive integers such that $a 阅读全文

posted @ 2022-10-11 15:31 onlyblues 阅读(253) 评论(1) 推荐(1) 编辑

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