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Random
Hot problems
COCI '08 Contest 3 #6 Najkraci
An Animal Contest 2 P3 - Koala Balloons
TSS Club Fair 2017 Problem B
ECOO '13 R1 P1 - Take a Number
CCC '24 J4 - Troublesome Keys
CCC '04 S2 - TopYodeller
DWITE '10 R3 #3 - Dominos Tiling
Problem
Category
Points
AC %
Users ▴
MNYC '16: King Modulus
Seasonal
3p
31.3%
255
DWITE '07 R2 #4 - All Is Balanced
DWITE
5
23.3%
255
SAC '21 Code Challenge P5 - Friends of Friends
SAC Coding Challenge
7p
22.2%
255
SAC '22 Code Challenge 4 Junior P1 - Obligatory DeMello Problem
SAC Coding Challenge
3
62.9%
255
Mock CCC '24 Contest 1 J4/S1 - Magical Magnetic Marbles
Mock CCC
5p
11.6%
255
TSOC '16 Contest 1 #6 - Joey and Biology
TSOC
12p
29.6%
256
DWITE '07 R1 #4 - Stacks of Blocks
DWITE
5
36.4%
256
CCC '23 S4 - Minimum Cost Roads
CCC
15p
19.6%
256
MWC '15 #4 P4: Dealing with Knots
MWC
7
37.9%
257
DMPG '17 G2 - Holy Grail War
DMOPC
17p
27.6%
257
DWITE '09 R1 #3 - That Missing Number
DWITE
5
52.7%
257
TLE '17 Contest 7 P1 - Stargazing
TLE
3p
32.4%
257
WC '18 Contest 3 J2 - Net Weight
Woburn Challenge
5p
45.9%
257
Mock CCC '15 S2 - Problem-setting Pandemonium
Mock CCC
5p
34.7%
258
DMOPC '15 Contest 1 P2 - Itami and Squad
DMOPC
5p
33.2%
258
VM7WC '16 #2 Bronze - G
VM7WC
5
66.3%
258
Appleby Contest '19 P3 - A Recursion Problem
Uncategorized
5p
32.6%
258
Back To School '19: H🅰️r🅰️mbe
Seasonal
3
34.1%
258
CCC '20 S5 - Josh's Double Bacon Deluxe
CCC
17p
29.6%
258
DMOPC '15 Contest 4 P4 - Great Sequence
DMOPC
10p
12.8%
259
VMSS Pre-Pre-Windsor P3 - SC2 Multitasking
Uncategorized
3
49.4%
259
PEG Test '11 - Cyclopian Air
Uncategorized
3
29.1%
259
Yet Another Contest 2 P1 - Betting
YAC
5p
22.6%
259
COCI '07 Contest 1 #5 Srednji
COCI
12p
43.1%
260
DMOPC '21 Contest 2 P1 - Bosses
DMOPC
7p
18.1%
260
DMOPC '14 Contest 4 P3 - Golden Lily
DMOPC
10p
23.1%
261
Mock CCC '18 Contest 5 J4/S2 - Reverse Sort
Mock CCC
5p
44.4%
261
Another Contest 4 Problem 2 - The Deutsch-Jozsa Algorithm
ACC
0
73.5%
261
BlueBook - Days
BlueBook
3
32.8%
261
Largest Permutation
Uncategorized
7p
19.6%
262
RGPC '18 P1 - Giant Cookie
Uncategorized
3
29.5%
262
DMOPC '19 Contest 1 P1 - Test Scores
DMOPC
5
21.3%
262
SAC '21 Code Challenge P2 - Littering
SAC Coding Challenge
5p
36.0%
262
DWITE '11 R4 #2 - Prime Time
DWITE
5
49.9%
263
CPC '19 Contest 1 P0 - Shoes
Uncategorized
3p
56.9%
263
WOSS Dual Olympiad 2021 J2/S1: Secret Formula
Seasonal
3
64.1%
263
Yet Another Contest 4 P1 - Snap
YAC
5p
47.2%
263
DMOPC '22 Contest 1 P1 - Up-down Sequence
DMOPC
5p
24.9%
263
CCO '16 P4 - O Canada
CCO
10p
36.2%
264
Self-deception
Uncategorized
15
21.5%
264
DMOPC '19 Contest 7 P1 - Hydrocarbons
DMOPC
7
45.1%
264
Facebook Hacker Cup '15 Round 2 P1 - Lazy Sort
FHC
10
31.5%
265
MWC '15 #3 P3: Bad News
MWC
7p
23.2%
266
DWITE '12 R1 #4 - Trick or Tree'ing
DWITE
5
23.5%
266
CCCHK '15 J2 - What is the minimum area?
CCC
5
35.7%
267
APIO '12 P1 - Dispatching
APIO
17p
26.1%
267
TSS Club Fair 2017 Problem A
Uncategorized
3p
62.1%
267
RGPC '18 P3 - Chocolate Day
Uncategorized
10
27.5%
267
DMOPC '17 Contest 5 P2 - Mimi and Binary
DMOPC
5p
20.1%
268
Educational DP Contest AtCoder M - Candies
Uncategorized
12
34.3%
268
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