Daily_CF_Problems

Main Activities (Daily)

• Update 2 Codeforces problems with different difficulty everyday except Sunday in the file daily_problems/${YYYY}/${MM}/${MMDD}/problems.md with hints.

• Update the solution to at least 1 of the 2 problems in the file daily_problems/${YYYY}/${MM}/${MMDD}/solution/${problem_code}.md.

• Categorize the problems by their used methods in the file categories/${method}.md.

How to join

• Upload your solution in the folder: daily_problems/${YYYY}/${MM}/${MMDD}/personal_submission.

• Remember to name your submission code file ${problem_code}_{your_name}.{py/cpp/...}.

• Also, when creating a pull request, please title it ${YYYYMMDD} ${INFO}.

Statistics

Here are the current statistics of submissions: Link.

Today's Problem

Difficulty	Problems	Hints	Solution
1800	CF1954D	Considering one set, if we know the number of balls of each color, what should be the minimum number of groups? How is it determined?	Editorial
1900	CF835D	Classic DP because one $k$-palindrome consists of two $k-1$-palindromes. You can use the result of the smaller substrings to decide the answer of the larger strings.	Editorial