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Random
Hot problems
Educational DP Contest AtCoder T - Permutation
APIO '09 P3 - The Great ATM Robbery
CCC '24 S2 - Heavy-Light Composition
COCI '11 Contest 5 #2 Eko
ICPC PACNW 2016 A - Alphabet
Max's Anger Contest Series 2 P3 - Array Anger
CCC '24 J5 - Harvest Waterloo
Problem
Category
Points
AC %
Users ▴
COCI '09 Contest 1 #3 Dobra
COCI
7
45.1%
113
Wesley's Anger Contest 5 Problem 3 - Super Squirrel Sisters
WAC
12p
19.6%
113
Graph Contest 1 P3 - Counting Cycles
Uncategorized
10
16.0%
113
WC '18 Contest 2 S1 - Laser Grid
Woburn Challenge
7p
57.3%
113
BSSPC '21 J5 - James and the Euclid Test
Uncategorized
7p
25.4%
113
COCI '21 Contest 1 #1 Ljeto
COCI
5p
42.4%
113
COCI '21 Contest 6 #3 Naboj
COCI
10p
36.0%
113
Better Censor
Uncategorized
7
22.4%
114
VM7WC '15 #5 Bronze - Melanioana
VM7WC
3
29.3%
114
GFSSOC '15 Winter S4 - Starry Nights
GFSSOC
12p
22.4%
114
COCI '15 Contest 4 #5 Galaksija
COCI
15p
18.3%
114
DMOPC '15 Contest 5 P2 - D-Mails
DMOPC
5p
47.0%
114
Expensive Chair Stacking
Uncategorized
7p
36.3%
114
Diagnostic Test '16 Level 2 P3 - Remove Cancer
Uncategorized
3
51.0%
114
COCI '09 Contest 7 #4 Svemir
COCI
12p
38.9%
114
NOIP '18 P2 - Currency System
China NOI
10p
42.8%
114
WOSS Dual Olympiad 2023 J3/S1: Moving Sand
Uncategorized
7
38.2%
114
DMOPC '14 Contest 7 P6 - Revenge of the Bins
DMOPC
20p
32.8%
115
COCI '06 Contest 4 #6 Ispiti
COCI
20p
26.7%
115
COCI '17 Contest 2 #1 Košnja
COCI
3
61.3%
115
Wesley's Anger Contest 1 Problem 2 - A Minimum Cost Flow Problem
WAC
7p
31.4%
115
Educational DP Contest AtCoder T - Permutation
Uncategorized
15
58.2%
115
SMAC 08/09 (Oct) #1 - Eliminanagram
Uncategorized
5
47.0%
115
WC '17 Contest 2 J2 - Breeding an Army
Woburn Challenge
3
52.5%
115
JOI '14 Open P6 - Secret
JOI
17p
15.8%
116
TLE '17 Contest 6 P1 - Molecules
TLE
3p
16.9%
116
CCO '18 P2 - Wrong Answer
CCO
12p
15.5%
116
DMOPC '18 Contest 4 P3 - Dr. Henri and Ionization
DMOPC
10p
43.5%
116
A Very Coordinated Christmas
Uncategorized
7p
34.5%
116
CCO '04 P5 - Jengaism
CCO
7
31.8%
116
WC '15 Finals S2 - Hydration
Woburn Challenge
10p
26.9%
116
WC '18 Contest 2 J3 - Seeing Double
Woburn Challenge
3p
58.6%
116
IOI '07 P5 - Pairs
IOI
25p
10.0%
116
DMOPC '20 Contest 6 P3 - Bread Merchant
DMOPC
10p
18.9%
116
CCO Preparation Test 3 P2 - Packing Up
Mock CCO
25p
14.9%
117
DWITE '12 R2 #3 - Bitstrings
DWITE
3
34.8%
117
Educational DP Contest AtCoder S - Digit Sum
Uncategorized
12
31.9%
117
Diagnostic Test '16 Level 1 P1 - StarMath
Uncategorized
3
29.2%
117
Factorial Sum List
Uncategorized
5
41.2%
117
UCC Coding Competition '21 P5 - Woodcutting Game
Uncategorized
10p
21.3%
117
CCC '06 S5 - Origin of Life
CCC
15
18.8%
118
Rotations in 3 Dimensions
Uncategorized
12
29.6%
118
DMOPC '17 Contest 1 P5 - Intimidating Arrays
DMOPC
15p
33.0%
118
DWITE '09 R6 #5 - Air Travel Planning
DWITE
7
61.0%
118
Another Contest 4 Problem 4 - Another Isosceles Right Triangle
ACC
0
45.8%
118
ACM U of T Tryouts C1 E - Foxling Feeding Frenzy
ICPC
7
30.3%
118
WC '18 Contest 1 S3 - Reach for the Top
Woburn Challenge
12p
11.7%
118
Wesley's Anger Contest 6 Problem 3 - Difference Sorting
WAC
10p
16.2%
118
DMOPC '20 Contest 6 P2 - Interpretive Art
DMOPC
7p
11.6%
118
SAC '22 Code Challenge 5 P4 - Querying Intervals
SAC Coding Challenge
10p
35.9%
118
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