Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Types Points AC % Users ▾
Wesley's Anger Contest 4 Problem 2 - Squirrel Election WAC Dynamic Programming, Greedy Algorithms 7p 20.6% 209
DMOPC '14 Contest 3 P5 - Not Enough Servers! DMOPC Dynamic Programming 20p 20.2% 208
ECOO '15 R1 P4 - Neanderthal Numbers ECOO Dynamic Programming 10p 34.0% 208
COCI '14 Contest 7 #3 ACM COCI Ad Hoc, Dynamic Programming 12p 50.6% 206
Halloween '14 P2 - Cat Girls Seasonal Dynamic Programming 12p 27.7% 204
CCO Preparation Test 6 P2 - An Easy Problem Mock CCO Dynamic Programming 12p 32.5% 204
CCO Preparation Test 5 P1 - City Game Mock CCO Dynamic Programming 15 26.4% 202
IOI '99 P1 - Little Shop of Flowers IOI Dynamic Programming 10 30.5% 201
CCO '13 P6 - Repetitivity CCO Dynamic Programming 25p 42.0% 197
Facebook Hacker Cup '15 Round 1 P3 - Winning at Sports FHC Dynamic Programming 12 50.3% 195
HCI '16 - Cheapest Operation Ever Uncategorized Dynamic Programming 20p 28.0% 195
CCO '14 P3 - Werewolf CCO Dynamic Programming 17p 42.1% 194
WC '96 P5 - Plentiful Paths Woburn Challenge Dynamic Programming 7 36.7% 191
UTS Open '21 P3 - Latin Class Uncategorized Dynamic Programming 10p 42.2% 187
GFSSOC '14 Winter S3 - Hide n Seek GFSSOC Dynamic Programming, Graph Theory 12p 25.0% 186
CCC '22 S5 - Good Influencers CCC Dynamic Programming, Graph Theory 17p 32.6% 185
CCO '10 P2 - Tree Pruning CCO Dynamic Programming 15 29.6% 184
ECOO '16 R3 P3 - CamelCase ECOO Dynamic Programming 10p 25.0% 184
IOI '00 P5 - Post Office IOI Dynamic Programming 15p 40.6% 183
DMOPC '14 Exam Time P5 - Happy Teachers DMOPC Dynamic Programming 15p 21.9% 179
GFSSOC '15 Fall Practice P5 - Bruno and Pumpkins GFSSOC Dynamic Programming, Greedy Algorithms 7p 28.5% 177
CCO '17 P4 - Rainfall Storage CCO Dynamic Programming 20p 36.2% 177
HopScotch II Classics Data Structures, Dynamic Programming 12p 24.1% 176
COCI '07 Contest 4 #5 Poklon COCI Data Structures, Dynamic Programming 15p 33.0% 173
IOI '14 Practice Task 1 - Square IOI Dynamic Programming 10p 45.9% 166
DWITE '10 R5 #3 - Balancing Act DWITE Dynamic Programming 7 39.3% 165
DWITE '12 R5 #3 - Triangle Count DWITE Dynamic Programming 7 33.4% 162
New Year's '18 P4 - The Polar Express Seasonal Dynamic Programming 7p 24.9% 161
COCI '13 Contest 2 #4 Putnik COCI Dynamic Programming 12p 45.3% 160
DMPG '17 B5 - Hackathons DMOPC Dynamic Programming 7p 15.9% 159
COCI '15 Contest 5 #3 Perica COCI Dynamic Programming, Intermediate Math 10p 29.4% 159
Educational DP Contest AtCoder Z - Frog 3 Uncategorized Dynamic Programming 20 38.6% 158
ICPC ECNA 2005 H - Two Ends ICPC Dynamic Programming 10 35.1% 156
TLE '16 Contest 6 (Mock CCC) S3 - Hyper Fax TLE Dynamic Programming 15p 17.1% 152
DWITE '11 R1 #5 - Tattarrattat DWITE Dynamic Programming 10 59.0% 147
DWITE '07 R3 #3 - Playlist DWITE Dynamic Programming 7 43.8% 146
ICPC PACNW 2016 H - Paint ICPC Dynamic Programming 7 23.9% 144
Bank Notes Uncategorized Dynamic Programming 7 16.9% 142
COCI '07 Contest 3 #5 Cudak COCI Dynamic Programming 15p 23.1% 141
APIO '14 P2 - Split the Sequence APIO Dynamic Programming 25p 11.6% 141
GFSSOC '15 Fall S5 - Raider GFSSOC Dynamic Programming, Graph Theory 17p 14.0% 137
VPEX P4 - Etopika Uncategorized Dynamic Programming, Graph Theory 12p 19.1% 137
NOI '97 P4 - Perfect Tour China NOI Dynamic Programming 5 32.2% 136
WC '07 P3 - Strategy Meeting Woburn Challenge Dynamic Programming, Graph Theory 10 20.2% 133
COCI '07 Contest 1 #4 Zapis COCI Dynamic Programming 15p 13.3% 132
IOI '09 P8 - Salesman IOI Data Structures, Dynamic Programming 25p 16.7% 132
COCI '14 Contest 1 #5 Zabava COCI Dynamic Programming 15p 31.9% 131
Educational DP Contest AtCoder R - Walk Uncategorized Dynamic Programming, Simple Math 15 63.4% 131
There's a Hole in the Bucket Uncategorized Dynamic Programming 7 57.4% 131
New Year's '17 P6 - Christmas Cards Seasonal Dynamic Programming 15p 23.2% 128