Codeforce Round 1018 (Div. 1+Div. 2)

Codeforce Round 1069 (Div. 2)

2025-2026 ICPC, NERC, Northern Eurasia Finals

AtCoder Beginner Contest 435

AtCoder Beginner Contest 436

AtCoder Beginner Contest 437

AtCoder Beginner Contest 454

AtCoder Beginner Contest 455

AtCoder Regular Contest 218