Home
Problems
Submissions
Users
Contests
Status
Log in
or
Sign up
This site works best with JavaScript enabled.
Problems
Problem search
Full text search
Has editorial
Show problem types
Category
All
---
ECOO
Google Code Jam
Uncategorized
Week1
Week10
Week11
Week12
Week13
Week14
Week2
Week3
Week4
Week5
Week6
Week7
Week8
Week9
Point range
Go
Random
Hot problems
Average
Integer Calculator
Triangle Sketcher
9X9
Alternative Adder
Stack
Problem
Category
Points
AC %
Users
Secret Primary Factor
Uncategorized
1
24.7%
24
ECOO '21 P1 - Many Messages
ECOO
10p
30.1%
93
ECOO '21 P2 - DNA Derren
ECOO
10p
45.5%
75
End of the Trip
Uncategorized
1
31.1%
18
Google Code Jam '22 Round 1B Problem A - Pancake Deque (7pts, 8pts, 10pts)
Google Code Jam
50p
22.3%
62
Hello World
Week1
5p
57.5%
939
What's Your Major?
Week2
5p
32.6%
904
Dupstring
Week2
5p
51.9%
880
Find Character
Week4
10p
38.2%
830
Rotate the Integer
Week3
20p
39.6%
720
Palindrome Checker
Week5
10p
39.0%
865
Intersection of Lists
Week5
10p
32.4%
805
Want Some Candies
Week5
10p
43.8%
770
Integer to Excel
Week6
20p
31.3%
688
Plus One
Week6
10p
46.9%
675
Two Sum
Week6
10p
46.0%
654
Excel to Integer
Week6
10p
58.0%
590
Complex Comparator
Week6
10p
35.8%
520
Integer to Roman
Week5
20p
50.6%
461
Rotate the String
Week4
10p
22.1%
541
Caesar Encryption
Week3
20p
43.7%
553
Missing Number
Week6
10p
37.6%
562
Inverse Pair
Week6
10p
55.6%
545
Alternative Adder
Week7
10p
36.0%
622
Stack
Week8
10p
22.0%
467
Average
Week8
10p
66.0%
593
9X9
Week8
10p
46.3%
556
Integer Calculator
Week8
10p
76.5%
564
Triangle Sketcher
Week8
10p
70.1%
572
Pascal's Triangle
Week9
10p
28.8%
534
Fibonacci Number
Week9
10p
73.9%
599
Reversed List
Week9
10p
51.1%
558
Permutations
Week9
10p
52.1%
468
Possible Number
Week9
15p
41.6%
359
Design an Ordered Stream
Week10
20p
52.1%
364
Triangle
Week10
10p
55.1%
498
Recent Calls
Week10
10p
68.6%
408
Matrix
Week11
10p
45.1%
502
My String
Week11
10p
38.0%
500
Sort by Date
Week11
10p
56.8%
546
Geometric Sequence
Week12
10p
48.5%
539
Pi Sequence
Week12
10p
61.2%
536
Pi Sequence II
Week13
10p
44.2%
559
Score Calculator
Week13
10p
59.1%
551
Strong Password
Week14
10p
45.8%
525