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Codeforce

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全部文章 / Codeforce （共32篇）

【CF 1197C】Array Splitting 差分序列

C. Array Splitting You are given a sorted array a1,a2,…,ana1,a2,…,an (for each index i>1i>1 condition a...

Codeforce

2019-07-25

0 657

【CF 1197A】DIY Wooden Ladder

A. DIY Wooden Ladder Let's denote a kk-step ladder as the following structure: exactly k+2k+2 wooden planks, of w...

Codeforce

2019-07-24

0 822

【CF 11787B】WOW Factor

B. WOW Factor Recall that string aa is a subsequence of a string bb if aa can be obtained from bb by deletion of sev...

Codeforce 字符串

2019-07-22

0 457

【CF 1194A】Remove a Progression

A. Remove a Progression You have a list of numbers from 11 to nn written from left to right on the blackboard. You...

Codeforce

2019-07-16

0 421

【CF 1111C】Creative Snap 二分

C. Creative Snap Thanos wants to destroy the avengers base, but he needs to destroy the avengers along with thei...

Codeforce 二分

2019-02-17

0 603

【CF 1111A】Superhero Transformation

A. Superhero Transformation We all know that a superhero can transform to certain other superheroes. But not all Superhero...

Codeforce

2019-02-17

0 411

【CF 1111B】Average Superhero Gang Power

B. Average Superhero Gang Power Every superhero has been given a power value by the Felicity Committee. The avengers crew want...

Codeforce

2019-02-17

0 413

【CF 1108A】Two distinct points

A. Two distinct points You are given two segments [l1;r1][l1;r1] and [l2;r2][l2;r2] on the xx-axis. It is guaranteed ...

Codeforce

2019-01-24

0 599

【CF 1100B】Build a Contest

B. Build a Contest Arkady coordinates rounds on some not really famous competitive programming platform. Each round f...

Codeforce

2019-01-17

0 575

【CF 1100A】Roman and Browser

A. Roman and Browser This morning, Roman woke up and opened the browser with nn opened tabs numbered from 11 to nn. T...

Codeforce

2019-01-17

0 480