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Hot problems
COCI '14 Contest 6 #4 Kratki
CCO '23 P1 - Binaria
ACSL '09 Practice P4 - Rank
Educational DP Contest AtCoder B - Frog 2
CCO '23 P2 - Real Mountains
TLE '16 Contest 7 P5 - Shortest Path Faster Algorithm
IOI '00 P1 - Palindrome
Problem
Category
Points
AC %
Users ▾
CCC '07 J4 - Anagram Checker
CCC
5
37.2%
2122
CCC '13 S2 - Bridge Transport
CCC
5
26.7%
2051
CCC '20 S1 - Surmising a Sprinter's Speed
CCC
5p
42.9%
2048
CCC '10 J2 - Up and Down
CCC
5
21.8%
2046
CCC '09 S1 - Cool Numbers
CCC
5
22.8%
2025
CCC '15 S2 - Jerseys
CCC
5p
26.7%
1954
CCC '00 J2 - 9966
CCC
3
35.8%
1951
CCC '03 S3 - Floor Plan
CCC
7
27.8%
1950
CCC '96 S1 - Deficient, Perfect, and Abundant
CCC
5
32.3%
1892
CCC '02 S2 - Fraction Action
CCC
5
18.9%
1876
Python Infinite Loop
Uncategorized
7p
17.3%
1874
CCC '11 J2 - Who Has Seen The Wind
CCC
5
25.7%
1859
CCC '12 S3 - Absolutely Acidic
CCC
7
26.6%
1842
CCC '12 S5 - Mouse Journey
CCC
7
45.6%
1814
DMOPC '14 Contest 2 P4 - Deforestation
DMOPC
5p
32.5%
1793
CCC '15 S3 - Gates
CCC
10p
18.7%
1775
CCC '17 S3 - Nailed It!
CCC
7p
30.5%
1717
CCC '23 J1 - Deliv-e-droid
CCC
3p
55.4%
1712
CCC '04 J4 - Simple Encryption
CCC
5
51.1%
1711
CCC '12 S2 - Aromatic Numbers
CCC
5
53.3%
1708
CCC '23 S1 - Trianglane
CCC
5p
31.9%
1705
CCC '07 S3 - Friends
CCC
7
37.6%
1697
3n+1
Uncategorized
3
39.3%
1696
CCC '20 S2 - Escape Room
CCC
10p
12.8%
1690
CCC '05 S2 - Mouse Move
CCC
5
37.2%
1684
CCC '16 J4 - Arrival Time
CCC
5
29.0%
1675
List Minimum (Hard)
Uncategorized
5
35.8%
1661
CCC '23 J2 - Chili Peppers
CCC
3p
53.4%
1617
CCC '03 J2 - Picture Perfect
CCC
3p
23.9%
1613
CCC '18 J5 - Choose your own path
CCC
7p
24.1%
1608
Another Contest 6 Problem 9 - Obligatory Wood IV Problem
ACC
0p
100.0%
1607
COCI '18 Contest 3 #1 Magnus
COCI
5
33.5%
1586
CCC '09 J2 - Old Fishin' Hole
CCC
5
39.1%
1584
CCC '10 S2 - Huffman Encoding
CCC
5
53.6%
1571
CCC '17 J4 - Favourite Times
CCC
5p
23.4%
1565
Triple Fat Ladies
Uncategorized
5
28.6%
1562
CCC '08 S3 - Maze
CCC
7
29.3%
1561
CCC '22 S2 - Good Groups
CCC
5p
26.1%
1553
CCC '11 J4 - Boring Business
CCC
7
27.8%
1505
CCC '01 S1 - Keeping Score
CCC
5
32.7%
1501
CCC '07 S4 - Waterpark
CCC
7
30.9%
1497
CCC '02 S1 - The Students' Council Breakfast
CCC
5
39.5%
1495
CCC '22 J3 - Harp Tuning
CCC
5p
33.3%
1491
BlueBook - Times Tables
BlueBook
3
54.3%
1481
CCC '98 S1 - Censor
CCC
5
37.6%
1471
IOI '94 P1 - The Triangle
IOI
7p
56.4%
1471
CCC '05 J5 - Bananas
CCC
10
21.6%
1467
CCC '06 J3 - Cell-Phone Messaging
CCC
3
41.3%
1464
CCC '15 J5 - π-day
CCC
10p
27.5%
1461
CCC '01 S3 - Strategic Bombing
CCC
7
38.6%
1454
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