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Random
Hot problems
CCC '19 S2 - Pretty Average Primes
Problem
Category
Points
AC %
Users ▾
Another Contest 4 Problem 10 - Two Rectangles
ACC
0
56.5%
137
DMOPC '19 Contest 7 P3 - Tree Pruning
DMOPC
12p
21.3%
137
COCI '09 Contest 4 #2 Planina
COCI
5
53.8%
137
UCC Coding Competition '21 P4 - Trampoline Jump
Uncategorized
7p
28.9%
137
STNBD P4 - Ellis Fahrengart
Uncategorized
17p
15.3%
136
IOI '10 P1 - Cluedo
IOI
5p
35.9%
136
DWITE '09 R5 #1 - ASCII bar graphs
DWITE
3
66.2%
136
IOI '19 P1 - Arranging Shoes
IOI
15p
16.4%
136
NOI '97 P4 - Perfect Tour
China NOI
5
32.2%
136
DMOPC '21 Contest 8 P2 - Kanna Market
DMOPC
10p
21.8%
136
VM7WC '15 #4 Bronze - Melanie's Cradles
VM7WC
3
41.4%
135
IOI '10 P5 - Memory
IOI
5p
23.0%
135
COCI '06 Contest 6 #2 Magija
COCI
5p
58.5%
135
DWITE '12 R5 #2 - Copycat SMS
DWITE
5
29.8%
135
DWITE '10 R1 #3 - Power tiles
DWITE
5
68.7%
135
XOR Minimum
Uncategorized
17p
36.2%
135
ACM U of T Tryouts C1 B - The Foxen's Treasure
ICPC
5
20.1%
135
IOI '07 P2 - Flood
IOI
25p
45.0%
135
An Animal Contest 4 P3 - Snowy Slopes
AAC
10
20.6%
135
Cheerio Contest 1 J2 - Phys Ed Class
Uncategorized
3
39.5%
135
Lyndon's Golf Contest 1 P2 - A Cube Problem
Uncategorized
0p
56.1%
135
DMOPC '15 Contest 4 P3 - Lethal
DMOPC
7p
29.4%
134
CCCJQR P2
Seasonal
3
20.8%
134
LKP '18 Contest 2 P2 - Secret Signal
Uncategorized
5
23.5%
134
Educational DP Contest AtCoder R - Walk
Uncategorized
15
63.8%
134
APIO '09 P1 - Digging for Oil
APIO
20p
17.1%
134
WC '18 Contest 1 J3 - Comparing Grades
Woburn Challenge
5p
55.5%
134
COCI '13 Contest 5 #3 Eksplozjia
COCI
10p
19.3%
134
GFSSOC '15 Fall Practice P3 - Bruno and Beads
GFSSOC
5p
45.3%
133
COCI '07 Contest 2 #4 Turbo
COCI
15p
41.2%
133
Another Contest 2 Problem 3 - Poutine
ACC
15
26.9%
133
GlobeX Cup '18 J Sample - Farming Simulator
Uncategorized
5p
38.0%
133
2-Dimensional Range Minimum Query
Classics
17p
19.9%
133
Towers
Uncategorized
3p
53.3%
133
IOI '09 P8 - Salesman
IOI
25p
16.8%
133
WC '18 Contest 3 S2 - Gym Tour
Woburn Challenge
12p
41.4%
133
WC '07 P3 - Strategy Meeting
Woburn Challenge
10
20.2%
133
An Animal Contest 3 P5 - Monkey Canoe
AAC
12p
18.3%
133
COCI '07 Contest 1 #4 Zapis
COCI
15p
13.3%
132
DWITE '02 R2 #5 - Now I know my ABCs
DWITE
5
38.9%
132
IOI '14 P6 - Holiday (Standard I/O)
IOI
30
12.2%
132
Another Contest 6 Problem 7 - Consonant or Vowel?
ACC
0p
69.3%
132
Yet Another Contest 2 P2 - Secret Sequence
YAC
7p
26.3%
132
COCI '14 Contest 1 #5 Zabava
COCI
15p
31.9%
131
STNBD P3 - Rinslet Laurenfrost
Uncategorized
5p
29.6%
131
ICPC NAQ 2016 A - A New Alphabet
ICPC
3
43.7%
131
ECOO '12 R3 P3 - Steam Arithmetic
ECOO
7p
40.4%
131
WC '18 Contest 4 J2 - Life Insurance
Woburn Challenge
3p
50.2%
131
Budget
Uncategorized
3
39.5%
131
There's a Hole in the Bucket
Uncategorized
7
57.4%
131
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