Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Types Points AC % Users
CCO '22 P6 - Good Game CCO Constructive, Dynamic Programming 35p 19.0% 12
CCO '23 P1 - Binaria CCO Implementation, Intermediate Math 12p 22.0% 208
CCO '23 P2 - Real Mountains CCO Data Structures, Greedy Algorithms 17p 12.4% 75
CCO '23 P3 - Line Town CCO Ad Hoc, Data Structures, Dynamic Programming 30p 9.9% 24
CCO '23 P4 - Flip it and Stick it CCO Ad Hoc, String Algorithms 17p 6.8% 59
CCO '23 P5 - Travelling Trader CCO Dynamic Programming, Graph Theory 30p 7.7% 18
CCO '23 P6 - Triangle Collection CCO Data Structures, Greedy Algorithms 25p 16.7% 19
CCO '24 P1 - Treasure Hunt CCO Graph Theory 10p 20.9% 84
CCO '24 P2 - Pizza Party CCO Greedy Algorithms 10p 33.7% 36
CCO '24 P3 - Summer Driving CCO Data Structures, Graph Theory 25p 9.3% 9
CCO '24 P4 - Infiltration CCO Graph Theory 20p 8.7% 10
CCO '24 P4 - Infiltration (Hard) CCO Graph Theory 30p 5.7% 1
CCO '24 P5 - Heavy Light Decomposition CCO Data Structures, Dynamic Programming 20p 19.7% 13
CCO '24 P6 - Telephone Plans CCO Data Structures, Graph Theory 30p 12.7% 9
CCO '96 P1 - Train Swapping CCO Implementation 5 26.9% 213
CCO '96 P2 - SafeBreaker CCO Brute Force 10 36.0% 91
CCO '96 P3 - Quadtrees CCO Recursion 15 48.9% 86
CCO '96 P4 - Where's Waldorf? CCO Implementation 7 47.4% 82
CCO '96 P5 - All Roads Lead Where? CCO Graph Theory 7 62.0% 277
CCO '96 P6 - Hoppers CCO Graph Theory 15 15.4% 30
CCO '97 P1 - Palindromes CCO Implementation, String Algorithms 10 11.4% 26
CCO '97 P2 - Alien Invasion CCO Dynamic Programming 10 46.1% 62
CCO '97 P3 - Porous Stone CCO Implementation, Simulation 10 18.6% 3
CCO '97 P4 - High Tide CCO Implementation, Intermediate Math 10 24.0% 12
CCO '97 P5 - Space Aliens CCO Brute Force, Implementation 10 23.7% 5
CCO '97 P6 - Aligning DNA CCO Implementation 7 22.0% 16
CCO '98 P1 - Fibonacci Numbers CCO Intermediate Math 7 26.4% 161
CCO '98 P2 - Message Deciphering CCO Implementation 7 56.7% 28
CCO '98 P3 - Bus Schedule CCO Graph Theory 12 12.5% 2
CCO '98 P4 - Scoring Curling CCO Implementation 7p 25.0% 8
CCO '98 P5 - Text Segmentation CCO Dynamic Programming 10 16.9% 19
CCO '98 P6 - Derek's Dilemma CCO Dynamic Programming, Game Theory 12 50.0% 5
CCO '99 P1 - You Can't Get There From Here CCO Implementation 7 27.1% 17
CCO '99 P2 - Common Words CCO Implementation 10 12.1% 330
CCO '99 P3 - Manelzuma's Revenge CCO Implementation 10 33.3% 3
CCO '99 P4 - Maple Roundup CCO Geometry, Implementation 10 20.6% 29
CCO '99 P5 - Sum Of Products CCO Implementation 15 14.3% 2
CCO '99 P6 - Fast Food CCO Dynamic Programming, Greedy Algorithms 15 26.6% 16
CCO Preparation Test 1 P1 - Double Cross Mock CCO Ad Hoc, Data Structures 20p 12.1% 10
CCO Preparation Test 1 P2 - Escape Maze Mock CCO Graph Theory 20p 11.8% 40
CCO Preparation Test 1 P3 - K-th Rank Student Mock CCO Data Structures, Graph Theory 17p 34.7% 156
CCO Preparation Test 2 P1 - Concatenation Mock CCO Ad Hoc, Advanced Math 17p 13.1% 32
CCO Preparation Test 2 P2 - Forest Area Mock CCO Ad Hoc, Data Structures 25p 3.8% 5
CCO Preparation Test 2 P3 - Subsets Mock CCO Ad Hoc, Dynamic Programming 20p 16.7% 39
CCO Preparation Test 3 P1 - Primitive Pythagorean Pairs Mock CCO Graph Theory 25p 13.5% 20
CCO Preparation Test 3 P2 - Packing Up Mock CCO Dynamic Programming 25p 14.9% 122
CCO Preparation Test 3 P3 - Arrow Mock CCO Advanced Math, Geometry 30p 17.7% 58
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO Graph Theory 25p 23.2% 55
CCO Preparation Test 5 P1 - City Game Mock CCO Dynamic Programming 15 26.4% 213
CCO Preparation Test 5 P2 - Corporative Network Mock CCO Graph Theory 15 8.0% 15