ID Problem Show tags Hide tags AC / Tried Difficulty
42 P1884D  Counting Rhyme 0 / 0 7
36 P1886E  I Wanna be the Team Leader 0 / 0 9
27 P1889C1  Doremy's Drying Plan (Easy Version) 0 / 0 7
26 P1889C2  Doremy's Drying Plan (Hard Version) 0 / 0 10
23 P1889F  Doremy's Average Tree 0 / 0 10
10 P1893E  Cacti Symphony 0 / 0 10
5 P1895C  Torn Lucky Ticket 0 / 0 4
3 P1895E  Infinite Card Game 0 / 0 8
2 P1895F  Fancy Arrays 0 / 0 10
1 P1895G  Two Characters, Two Colors 0 / 0 10
5141 P1896H1  Cyclic Hamming (Easy Version) 0 / 0 (None)
5140 P1896H2  Cyclic Hamming (Hard Version) 0 / 0 (None)
5069 P1899C  Yarik and Array 0 / 0 (None)
5348 P1900B  Laura and Operations 0 / 0 3
5347 P1900C  Anji's Binary Tree 0 / 0 4
5346 P1900D  Small GCD 0 / 0 7
5345 P1900E  Transitive Graph 0 / 0 7
5136 P1901D  Yet Another Monster Fight 0 / 0 5
5135 P1901E  Compressed Tree 0 / 0 8
6622 P1902D  Robot Queries 0 / 0 6
5341 P1903C  Theofanis' Nightmare 0 / 0 4
5339 P1903D2  Maximum And Queries (hard version) 0 / 0 9
5338 P1903E  Geo Game 0 / 0 7
6709 P1904B  Collecting Game 0 / 0 3
6699 P1905E  One-X 0 / 0 9
6615 P1906E  Merge Not Sort 0 / 0 6
6612 P1906H  Twin Friends 0 / 0 8
6610 P1906J  Count BFS Graph 0 / 0 7
6692 P1909F1  Small Permutation Problem (Easy Version) 0 / 0 8
6691 P1909F2  Small Permutation Problem (Hard Version) 0 / 0 9
6688 P1909I  Short Permutation Problem 0 / 0 10
6683 P1910E  Maximum Sum Subarrays 0 / 0 7
6679 P1910I  Inverse Problem 0 / 0 10
6667 P1912K  Kim's Quest 0 / 0 6
6662 P1913D  Array Collapse 0 / 0 7
6656 P1914D  Three Activities 0 / 0 4
6653 P1914F  Programming Competition 0 / 0 6
6652 P1914G1  Light Bulbs (Easy Version) 0 / 0 7
6651 P1914G2  Light Bulbs (Hard Version) 0 / 0 8
6637 P1916G  Optimizations From Chelsu 0 / 0 10
6636 P1916H1  Matrix Rank (Easy Version) 0 / 0 10
6635 P1916H2  Matrix Rank (Hard Version) 0 / 0 10
6633 P1917B  Erase First or Second Letter 0 / 0 3
6631 P1917D  Yet Another Inversions Problem 0 / 0 8
6629 P1917F  Construct Tree 0 / 0 9
8205 P1918C  XOR-distance 0 / 0 4
8204 P1918D  Blocking Elements 0 / 0 6
8202 P1918F  Caterpillar on a Tree 0 / 0 9
7323 P1919C  Grouping Increases 0 / 0 4
7322 P1919D  01 Tree 0 / 0 7
7321 P1919E  Counting Prefixes 0 / 0 10
7319 P1919F2  Wine Factory (Hard Version) 0 / 0 10
8196 P1920E  Counting Binary Strings 0 / 0 7
8188 P1921F  Sum of Progression 0 / 0 6
8187 P1921G  Mischievous Shooter 0 / 0 8
8181 P1922F  Replace on Segment 0 / 0 9
8929 P1923B  Monsters Attack! 0 / 0 (None)
8926 P1923E  Count Paths 0 / 0 (None)
8180 P1924A  Did We Get Everything Covered? 0 / 0 5
8177 P1924D  Balanced Subsequences 0 / 0 10
8175 P1924F  Anti-Proxy Attendance 0 / 0 10
8172 P1925D  Good Trip 0 / 0 6
8922 P1926C  Vlad and a Sum of Sum of Digits 0 / 0 (None)
8920 P1926E  Vlad and an Odd Ordering 0 / 0 (None)
8919 P1926F  Vlad and Avoiding X 0 / 0 (None)
8918 P1926G  Vlad and Trouble at MIT 0 / 0 (None)
8914 P1927D  Find the Different Ones! 0 / 0 4
8911 P1927G  Paint Charges 0 / 0 8
8906 P1928E  Modular Sequence 0 / 0 8
8901 P1929D  Sasha and a Walk in the City 0 / 0 6
8900 P1929E  Sasha and the Happy Tree Cutting 0 / 0 8
8895 P1930D1  Sum over all Substrings (Easy Version) 0 / 0 (None)
8894 P1930D2  Sum over all Substrings (Hard Version) 0 / 0 (None)
8893 P1930E  2..3...4... 0 / 0 (None)
8891 P1930G  Prefix Max Set Counting 0 / 0 (None)
8881 P1932A  Thorns and Coins 0 / 0 (None)
8876 P1932F  Feed Cats 0 / 0 (None)
8869 P1933F  Turtle Mission: Robot and the Earthquake 0 / 0 (None)
8866 P1934B  Yet Another Coin Problem 0 / 0 (None)
8859 P1935C  Messenger in MAC 0 / 0 (None)
8848 P1937B  Binary Path 0 / 0 (None)
9387 P1958A  1-3-5 0 / 0 3
9380 P1958H  Composite Spells 0 / 0 10
9366 P1967C  Fenwick Tree 0 / 0 8
9364 P1967E1  Again Counting Arrays (Easy Version) 0 / 0 10
9363 P1967E2  Again Counting Arrays (Hard Version) 0 / 0 10
9355 P1968G1  Division + LCP (easy version) 0 / 0 6
9354 P1968G2  Division + LCP (hard version) 0 / 0 8
9351 P1969C  Minimizing the Sum 0 / 0 5
9349 P1969E  Unique Array 0 / 0 9
9348 P1969F  Card Pairing 0 / 0 10
9340 P1970C2  Game on Tree (Medium) 0 / 0 5
9339 P1970C3  Game on Tree (Hard) 0 / 0 6
9335 P1970E1  Trails (Easy) 0 / 0 6
9334 P1970E2  Trails (Medium) 0 / 0 7
9333 P1970E3  Trails (Hard) 0 / 0 8
9328 P1970G2  Min-Fund Prison (Medium) 0 / 0 8
9327 P1970G3  Min-Fund Prison (Hard) 0 / 0 9
9323 P1971D  Binary Cut 0 / 0 3
9316 P1973A  Chess For Three 0 / 0 3

Categories

Lucky

Pick a problem randomly based on the current filter.