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DuongNguyen_CBN

Duong Nguyen, Bắc Ninh, Vietnam
  • User''s contest rating in Codeforces community Contest rating: 1078 (max. newbie, 1182)
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  • Friend of: 3 users
  • Last visit: 5 weeks ago
  • Registered: 5 years ago
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336 problems
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