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1. CFR

Codeforces Round

1.1. Codeforces Round 665

Codeforces/Round 665 참고

1.2. Codeforces Round 669

Codeforces/Round 669 참고

1.3. Codeforces Round 700

Codeforces/Round 700 참고

2. ECR

Educational Codeforces Round

3. CGR

Codeforces Global Round

3.1. CGR 10

Codeforces/Global Round 10 참고

4. 기타

4.1. Grakn Forces 2020

Codeforces/Grakn Forces 2020 참고