2000 When 0% (0/0)
2001 Prime Bases 0% (0/0)
2002 Quicksum 35% (11/31) Beginner
2003 Linear Pachinko 100% (1/1)
2004 Surprising Strings 50% (1/2)
2005 Falling Ice 0% (0/0)
2006 Frugal Search 0% (0/0)
2007 Go Go Gorelians 0% (0/0)
2008 Root of the Problem 100% (1/1)
2009 Give me the next Prime 14% (14/103)
2010 Poly-polygonal Numbers 0% (0/1)
2011 Stacking Cubes 50% (1/2)
2012 Matryoshka Dolls 0% (0/0)
2013 Fractional Lotion 100% (2/2)
2014 Andrew the Ant 0% (0/0)
2015 Software Bugs 40% (2/5)
2016 Collatz Conjecture 0% (0/4)
2017 AAAAHH! Overbooked! 67% (4/6) Beginner
2018 Betting Sets 33% (1/3)
2019 Counting Pixels 0% (0/0)
2020 Matryoshka Dolls 0% (0/0)
2021 Game Rigging 0% (0/0)
2022 Four Gate Push 40% (2/5)
2023 Bonsai 0% (0/0)
2024 Universal Oracle 0% (0/0)
2025 Rectangles 0% (0/0)
2026 Apocalyptic Alignment 0% (0/0)
2027 Boundless Boxes 0% (0/0)
2028 Dreadful Deadlines 75% (3/4)
2029 Another Rock-Paper-Scissors Problem 0% (0/1)
2030 Divisibility 0% (0/0)
2031 A Reasonable Ranking 0% (0/0)
2032 Matryoshka Dolls, Again 0% (0/0)
2033 Typesetting 33% (1/3)
2034 The Seven Percent Solution 100% (2/2)
2035 Slink 0% (0/0)
2036 Persistent Bits 100% (2/2)
2037 Here We Go(relians) Again 0% (0/0)
2038 Electronic Document Security 0% (0/0)
2039 Guard 0% (0/0)
2040 Rock Skipping 0% (0/0)
2041 Parity 100% (13/13) Beginner
2042 Lampyridae Teleportae 0% (0/0)
2043 Hex Tile Equations 0% (0/4)
2044 The Bridges of San Mochti 0% (0/0)
2045 Bulletin Board 0% (0/0)
2046 Serial Numbers 0% (0/0)
2047 Line & Circle Maze 0% (0/0)
2048 Steganography 0% (0/0)
2049 Up and Down 0% (0/0)
2050 Gnome Sequencing 0% (0/0)
2051 DuLL 0% (0/0)
2052 Black Vienna 0% (0/0)
2053 Rock, Paper, Scissors 0% (0/0)
2054 A to Z Numerals 0% (0/0)
2055 Cell Towers 0% (0/0)
2056 RIPOFF 0% (0/0)
2057 What’s Next? 67% (2/3)
2058 Sum the Square 0% (0/0)
2059 Normalized Form 0% (0/0)
2060 Tri graphs 0% (0/0)
2061 Sometimes, a penalty is good! 0% (0/0)
2062 World of cubes 0% (0/0)
2063 A Knights’ Tale 0% (0/0)
2064 Jumping Beans 0% (0/0)
2065 The Cyber Traveling Salesman 0% (0/0)
2066 Substring 0% (0/0) Beginner
2068 Cubic Polynomial 28% (23/82) Beginner
2071 Prime Ring Problem 18% (12/68) Beginner
2077 Ball Painting 0% (0/0)
2078 City Driving 0% (0/0)
2079 Drunken Walk 0% (0/0)
2080 Empty Triangles 0% (0/0)
2081 Battleships   0% (0/0)
2082 Cuckoo for Hashing   0% (0/0)
2083 Playing Fair with Cryptography   0% (0/0)
2084 Rent-A-Pixel   0% (0/0)
2085 Stampede!   0% (0/0)
2086 Super Phyllis   0% (0/0)
2087 Tree Lighting   0% (0/0)
2088 The Urge to Merge   0% (0/0)
2089 Movie 0% (0/0)
2090 SMS Poll 0% (0/0)
2091 Traitor 0% (0/0)
2092 Intelligent Traffic Surveillance 0% (0/0)
2093 BitTorrent 0% (0/0)
2094 2D-Solar System 100% (2/2)
2095 Bowling Ball 0% (0/1)
2096 LED Circuit 0% (0/0)
2097 Mixed Flight Plans 0% (0/0)
2098 Sweeping Robot 0% (0/0)
2099 Wedding Hall 0% (0/0)


North University of China

OnlineJudge

NUC

NOJ

OJ

ACM/ICPC