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
1600	CF980B	You don't need to actually calculate the number of shortest paths.	Editorial
2200	CF507D	The modulo condition starts from the suffix, so DP from the right.	Editorial