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Random
Hot problems
CCC '16 S4 - Combining Riceballs
Appleby Contest '19 P5 - Matrix Operation
Cheerio Contest 1 S2 - School Expansion
WC '96 P6 - Bases Multiplication
CCCHK '15 J4 - Where to build my house?
DMOPC '23 Contest 1 P1 - Peak Grid
Max's Anger Contest Series 2 P3 - Array Anger
Problem
Category
Points
AC %
Users ▾
ECOO '18 R1 P2 - Rue's Rings
ECOO
5p
21.7%
392
DMOPC '15 Contest 1 P6 - Lelei and Contest
DMOPC
17p
18.7%
391
UCC Coding Competition '21 P3 - Long Pizza
Uncategorized
5p
22.2%
391
GFSSOC '15 Winter J1 - Festive Fardin
GFSSOC
3
32.7%
390
COCI '07 Contest 2 #2 Crne
COCI
3
39.5%
390
DMOPC '13 Contest 3 P5 - A Romantic Dinner
DMOPC
10p
45.8%
388
VM7WC '16 #1 Bronze - A New Prime Factorization
VM7WC
5
32.0%
388
DMOPC '14 Contest 3 P3 - Not Enough Personnel!
DMOPC
7p
31.4%
387
Cheerio Contest 3 P2 - Double-O-Seven
Uncategorized
5p
42.2%
387
CCO '14 P4 - Where's That Fuel?
CCO
7p
34.3%
386
DMOPC '15 Contest 1 P5 - Lelei and Dragon Scales
DMOPC
10p
20.5%
386
DMOPC '18 Contest 6 P3 - Wish Upon a Star
DMOPC
10p
45.0%
386
GFSSOC '15 Fall J3 - Equation Solver
GFSSOC
5p
56.9%
385
DMOPC '16 Contest 4 P2 - Systests
DMOPC
7p
18.6%
385
DMOPC '15 Contest 2 P1 - Grumpy Dwarf
DMOPC
3p
21.7%
384
DMOPC '18 Contest 4 P2 - Dr. Henri and Responsibility
DMOPC
7p
20.8%
384
COCI '06 Contest 2 #5 Stol
COCI
12p
45.5%
383
DMOPC '17 Contest 2 P3 - Bad Bunnies
DMOPC
10p
25.0%
383
Back To School '18: Harambe
Seasonal
3
23.2%
383
BlueBook - First Blank
BlueBook
3
36.7%
380
CCO '13 P2 - Tourney
CCO
12p
42.3%
379
COCI '09 Contest 1 #2 Domino
COCI
5
66.3%
379
DMOPC '20 Contest 4 P1 - Missing Numbers
DMOPC
5p
14.4%
379
Pulse
Uncategorized
3
38.3%
378
DMOPC '14 Contest 2 P6 - Selective Cutting
DMOPC
12p
29.2%
378
GFSSOC '15 Fall S4 - Mostly Talking
GFSSOC
15p
15.8%
377
DMOPC '15 Contest 6 P4 - Line Graph
DMOPC
10p
43.3%
377
BlueBook - Pay
BlueBook
3
20.5%
377
ACM U of T Tryouts C3 B - A Careful Reply
ICPC
3
43.6%
376
Miracle Sort
Seasonal
3
25.0%
375
Mock CCC '19 Contest 2 J2 - Tudor Drinks Some More Tea
Mock CCC
3p
28.2%
375
DMOPC '20 Contest 2 P1 - Laugh Graphs
DMOPC
5
32.5%
375
VM7WC '15 #3 Silver - Test Scores
VM7WC
5
30.9%
374
DMOPC '17 Contest 2 P1 - 0-1 Knapsack
DMOPC
3
28.8%
374
IOI '11 P4 - Crocodile's Underground City (Standard I/O)
IOI
17p
19.1%
374
DMOPC '22 Contest 3 P1 - Holiday Colouring
DMOPC
5p
21.5%
373
VM7WC '15 #4 Gold - Chain Rule
VM7WC
10
36.0%
372
Mock CCC '18 Contest 2 J3/S1 - An Array Problem
Mock CCC
7p
16.1%
372
CCC '03 S4 - Substrings
CCC
15p
7.7%
371
COCI '07 Regional #1 Platforme
COCI
7
29.4%
371
New Year's '18 P2 - Mimi and Christmas Cake
Seasonal
5p
30.2%
371
DMOPC '18 Contest 6 P1 - DNA or RNA?
DMOPC
3
24.5%
371
Mock CCC '19 Contest 1 S2 - Pusheen's Puzzle Present
Mock CCC
5p
26.8%
370
ECOO '20 P2 - Online Shopping
ECOO
5p
46.4%
370
CPC '21 Contest 1 P0 - AQT and Alphabet
Uncategorized
3
71.6%
370
MWC '15 #1 P5: Love Guru
MWC
7p
25.6%
369
A Game
Uncategorized
10
29.9%
369
Double Doors Regional P3 - Tudor and the Pusheens
Uncategorized
7
14.7%
368
UTS Open '18 P1 - Love Triangle
Uncategorized
3p
22.0%
368
DMOPC '23 Contest 1 P1 - Peak Grid
DMOPC
5p
54.8%
368
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