View all problems
Name ![]() |
Difficulty ![]() |
Users Solved ![]() |
Tags ![]() |
---|---|---|---|
2020 digit | 200 | 457 | Algebra, Digits |
Sum of four | 100 | 363 | Combinatorics, Digits |
Divisibility by 4 | 200 | 204 | Number-Theory, Digits |
Sum of digits 2020 | 200 | 146 | Number-Theory, Digits |
U turn | 200 | 143 | Algebra, Number-Theory, Digits |
Tommorow's day | 100 | 616 | Algebra, Digits |
Cool-divisble numbers | 300 | 64 | Number-Theory, Digits |
Sum of Digits | 200 | 62 | Number-Theory, Digits |
Digital Cubes | 100 | 73 | Algebra, Digits |
Lucky numbers | 100 | 127 | Digits, Algebra |
Flip | 200 | 62 | Algebra, Number-Theory, Digits |
Also palindrome | 400 | 44 | Digits |