Browse Problems 
Our Patreons
Diamond Sponsors
Steven & Felix Halim
Reinardus Pradhitya
Gold Sponsors
--- YOUR NAME HERE ----
Silver Sponsors
--- YOUR NAME HERE ----
Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Contribute
Bitcoin:
1ojudgeapLUjJcnUm
ze67a4w3TJ6WnPxo
Browse Problems
Root :: Competitive Programming 3: The New Lower Bound of Programming Contests (Steven & Felix Halim) :: Mathematics :: Ad Hoc Mathematics Problems :: Number Systems or Sequences
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
136 - Ugly Numbers | 124794 |
32.87%
|
30543 |
79.43%
|
|
|
|
138 - Street Numbers | 21982 |
45.56%
|
8956 |
84.77%
|
|
|
|
413 - Up and Down Sequences | 4172 |
46.81%
|
2053 |
80.52%
|
|
|
|
443 - Humble Numbers | 18951 |
43.75%
|
6701 |
89.27%
|
|
|
|
640 - Self Numbers | 16054 |
50.32%
|
6051 |
89.84%
|
|
|
|
694 - The Collatz Sequence | 40925 |
40.92%
|
13200 |
89.04%
|
|
|
|
962 - Taxicab Numbers | 2429 |
40.22%
|
645 |
86.98%
|
|
|
|
974 - Kaprekar Numbers | 4346 |
41.74%
|
1462 |
89.60%
|
|
|
|
10006 - Carmichael Numbers | 44828 |
37.98%
|
10863 |
85.36%
|
|
|
|
10042 - Smith Numbers | 21175 |
36.74%
|
5887 |
85.54%
|
|
|
|
10049 - Self-describing Sequence | 8164 |
51.94%
|
3449 |
87.91%
|
|
|
|
10101 - Bangla Numbers | 38298 |
20.63%
|
7234 |
65.57%
|
|
|
|
10408 - Farey sequences | 4345 |
62.21%
|
2111 |
92.52%
|
|
|
|
10930 - A-Sequence | 8418 |
23.91%
|
1883 |
74.61%
|
|
|
|
11028 - Sum of Product | 747 |
57.43%
|
425 |
87.29%
|
|
|
|
11063 - B2-Sequence | 25500 |
23.40%
|
4219 |
84.14%
|
|
|
|
11461 - Square Numbers | 45827 |
48.91%
|
14924 |
95.21%
|
|
|
|
11660 - Look-and-Say sequences | 1821 |
37.40%
|
468 |
80.13%
|
|
|
|
11970 - Lucky Numbers | 4696 |
47.93%
|
1444 |
86.98%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 19 of 19 | |