ID Problem Show tags Hide tags AC / Tried Difficulty
10189 P1901B  Chip and Ribbon 0 / 0 3
10188 P1901C  Add, Divide and Floor 0 / 0 4
10187 P1901D  Yet Another Monster Fight 0 / 0 5
10186 P1901E  Compressed Tree 0 / 0 8
10185 P1901F  Landscaping 0 / 0 10
10318 P1907F  Shift and Reverse 0 / 0 6
10317 P1907G  Lights 0 / 0 8
10316 P1909A  Distinct Buttons 0 / 0 3
10315 P1909B  Make Almost Equal With Mod 0 / 0 4
10314 P1909C  Heavy Intervals 0 / 0 4
10313 P1909D  Split Plus K 0 / 0 6
10312 P1909E  Multiple Lamps 0 / 0 9
10311 P1909F1  Small Permutation Problem (Easy Version) 0 / 0 8
10310 P1909F2  Small Permutation Problem (Hard Version) 0 / 0 9
10309 P1909G  Pumping Lemma 0 / 0 10
10308 P1909H  Parallel Swaps Sort 0 / 0 10
10307 P1909I  Short Permutation Problem 0 / 0 10
10306 P1910A  Username 0 / 0 3
10305 P1910B  Security Guard 0 / 0 5
10304 P1910C  Poisonous Swamp 0 / 0 5
10303 P1910D  Remove and Add 0 / 0 6
10302 P1910E  Maximum Sum Subarrays 0 / 0 7
10301 P1910F  Build Railway Stations 0 / 0 7
10300 P1910G  Pool Records 0 / 0 10
10299 P1910H  Sum of Digits of Sums 0 / 0 9
10298 P1910I  Inverse Problem 0 / 0 10
10297 P1910J  Two Colors 0 / 0 10
10296 P1912A  Accumulator Apex 0 / 0 6
10295 P1912B  Blueprint for Seating 0 / 0 7
10294 P1912C  __NO_TITLE__ 0 / 0 (None)
10248 P1912D  Divisibility Test 0 / 0 6
10247 P1912E  Evaluate It and Back Again 0 / 0 8
10246 P1912F  Fugitive Frenzy 0 / 0 10
10245 P1912G  __NO_TITLE__ 0 / 0 (None)
10244 P1912H  Hypercatapult Commute 0 / 0 9
10243 P1912I  __NO_TITLE__ 0 / 0 (None)
10242 P1912J  __NO_TITLE__ 0 / 0 (None)
10241 P1912K  Kim's Quest 0 / 0 6
10240 P1912L  LOL Lovers 0 / 0 3
10239 P1913A  Rating Increase 0 / 0 3
10238 P1913B  Swap and Delete 0 / 0 3
10237 P1913C  Game with Multiset 0 / 0 4
10236 P1913D  Array Collapse 0 / 0 7
10235 P1913E  Matrix Problem 0 / 0 9
10234 P1913F  Palindromic Problem 0 / 0 10
10233 P1914A  Problemsolving Log 0 / 0 3
10232 P1914B  Preparing for the Contest 0 / 0 3
10231 P1914C  Quests 0 / 0 3
10230 P1914D  Three Activities 0 / 0 4
10229 P1914E1  Game with Marbles (Easy Version) 0 / 0 4
10228 P1914E2  Game with Marbles (Hard Version) 0 / 0 4
10227 P1914F  Programming Competition 0 / 0 6
10226 P1914G1  Light Bulbs (Easy Version) 0 / 0 7
10225 P1914G2  Light Bulbs (Hard Version) 0 / 0 8
10293 P1915A  Odd One Out 0 / 0 3
10292 P1915B  Not Quite Latin Square 0 / 0 3
10291 P1915C  Can I Square? 0 / 0 3
10290 P1915D  Unnatural Language Processing 0 / 0 3
10289 P1915E  Romantic Glasses 0 / 0 4
10288 P1915F  Greetings 0 / 0 5
10287 P1915G  Bicycles 0 / 0 6
10286 P1916A  2023 0 / 0 3
10285 P1916B  Two Divisors 0 / 0 3
10284 P1916C  Training Before the Olympiad 0 / 0 4
10283 P1916D  Mathematical Problem 0 / 0 5
10282 P1916E  Happy Life in University 0 / 0 8
10281 P1916F  Group Division 0 / 0 10
10280 P1916G  Optimizations From Chelsu 0 / 0 10
10279 P1916H1  Matrix Rank (Easy Version) 0 / 0 10
10278 P1916H2  Matrix Rank (Hard Version) 0 / 0 10
10224 P1917A  Least Product 0 / 0 3
10223 P1917B  Erase First or Second Letter 0 / 0 3
10222 P1917C  Watering an Array 0 / 0 5
10221 P1917D  Yet Another Inversions Problem 0 / 0 8
10220 P1917E  Construct Matrix 0 / 0 9
10219 P1917F  Construct Tree 0 / 0 9
10347 P1918A  Brick Wall 0 / 0 3
10346 P1918B  Minimize Inversions 0 / 0 3
10345 P1918C  XOR-distance 0 / 0 4
10344 P1918D  Blocking Elements 0 / 0 6
10343 P1918E  ace5 and Task Order 0 / 0 8
10342 P1918F  Caterpillar on a Tree 0 / 0 9
10341 P1918G  Permutation of Given 0 / 0 10
10277 P1919A  Wallet Exchange 0 / 0 3
10276 P1919B  Plus-Minus Split 0 / 0 3
10275 P1919C  Grouping Increases 0 / 0 4
10274 P1919D  01 Tree 0 / 0 7
10273 P1919E  Counting Prefixes 0 / 0 10
10272 P1919F1  Wine Factory (Easy Version) 0 / 0 8
10271 P1919F2  Wine Factory (Hard Version) 0 / 0 10
10270 P1919G  Tree LGM 0 / 2 10
10269 P1919H  Tree Diameter 0 / 0 10
10268 P1920A  Satisfying Constraints 0 / 0 3
10267 P1920B  Summation Game 0 / 0 3
10266 P1920C  Partitioning the Array 0 / 0 5
10265 P1920D  Array Repetition 0 / 0 6
10264 P1920E  Counting Binary Strings 0 / 0 7
10263 P1920F1  Smooth Sailing (Easy Version) 0 / 0 9
10262 P1920F2  Smooth Sailing (Hard Version) 0 / 0 10
10261 P1921A  Square 0 / 0 3

Categories

Lucky

Pick a problem randomly based on the current filter.