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🇨🇳 简体中文
🇬🇧 English

GitHub (opens new window)

Basics
Algebra
Data Structures
Graph Theory
Dynamic Programming
Geometry
String
Combinatorics
Ad Hoc

Codeforces
AtCoder
Leetcode
Kick Start
Advent of Code
Project Euler
UOJ Translation
Other Contests

Tips
Jargon
Hall of Fame

🇨🇳 简体中文
🇬🇧 English

GitHub (opens new window)

About Codeforces Contests
Regular Round
Div.2 Round
Educational Round
Div.3 Round
- Codeforces Round 667 (CF1409) Tutorial
- Codeforces Round 661 (CF1399) Tutorial

# Codeforces Round 667 (CF1409) Tutorial

Currently, there is only the Chinese version.

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Last Updated: 7/30/2022, 2:55:07 AM

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