ID Problem Show tags Hide tags AC / Tried Difficulty
1860 P4C  Registration system 0 / 0 (None)
1863 P5C  Longest Regular Bracket Sequence 0 / 0 (None)
1864 P5E  Bindian Signalizing 0 / 0 (None)
1906 P19D  Points 0 / 0 (None)
1933 P28D  Don't fear, DravDe is kind 0 / 0 (None)
1935 P29C  Mail Stamps 0 / 0 (None)
1961 P37C  Old Berland Language 0 / 0 (None)
1989 P44G  Shooting Gallery 0 / 0 (None)
1993 P45C  Dancing Lessons 0 / 0 (None)
2001 P46E  Comb 0 / 0 (None)
2005 P47E  Cannon 0 / 0 (None)
2032 P56C  Corporation Mail 0 / 0 (None)
2033 P56E  Domino Principle 0 / 0 (None)
2065 P66C  Petya and File System 0 / 0 (None)
2069 P67D  Optical Experiment 0 / 0 (None)
2072 P68D  Half-decay tree 0 / 0 (None)
2077 P70C  Lucky Tickets 0 / 0 (None)
2095 P74D  Hanger 0 / 0 (None)
2099 P75D  Big Maximum Sum 0 / 0 (None)
2110 P79C  Beaver 0 / 0 (None)

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