| ID | NAME | QUALITY | USERS | ACC % | DIFFICULTY C I |
|---|---|---|---|---|---|
| 18164 | Atoms in the Lab | 20 | 2740 |
|
|
| 328 | Bishops | 62 | 6980 |
|
|
| 2009 | Cryptography | 76 |
|
||
| 314 | Digits of e | 2693 |
|
||
| 24 | Small factorials | 86 | 29123 |
|
|
| 6236 | Matches | 4 | 407 |
|
|
| 2906 | GCD2 | 34 | 5044 |
|
|
| 2901 | One Geometry Problem | 7 | 1482 |
|
|
| 10676 | 0110SS | 13 | 1453 |
|
|
| 54 | Julka | 95 | 14948 |
|
|
| 5699 | The last digit re-visited | 29 | 6456 |
|
|
| 3932 | Point Connection Game in a Circle | 1 | 628 |
|
|
| 3970 | Convert to Decimal Base System | 48 |
|
||
| 16034 | Minimum Number | 3 | 428 |
|
|
| 3023 | Binary multiplication | 2 | 216 |
|
|
| 18905 | Kapti and Balu | 1 | 31 |
|
|
| 8676 | Digits of Phi (Golden Ratio) | 1 | 281 |
|
|
| 270 | Digits of Pi | 6 | 5340 |
|
|
| 5294 | Recurrence | 234 |
|
||
| 29748 | Robin Hood | 22 |
|
||
| 3362 | Setnja | 219 |
|
||
| 10334 | SOLDIERS | 5 | 586 |
|
|
| 1423 | Digits of SQRT(2) | 3 | 2518 |
|
|
| 738 | Another Counting Problem | 214 |
|
||
| 71 | Tree | 2 | 391 |
|
|
| 1002 | Uncle Jack | 9 | 2707 |
|
|
| 235 | Very Fast Multiplication | 13 | 697 |
|
|
| 6479 | The Very Greatest Common Divisor | 2 | 72 |
|
|
| 1475 | Play with Digit Seven | 2 | 64 |
|
#big-numbers
The problem involves arbitrary precision arithmetic
https://en.wikipedia.org/wiki/Arbitrary-precision_arithmetic https://en.wikipedia.org/wiki/Karatsuba_algorithm - efficient multiplication algorithm https://en.wikipedia.org/wiki/Toom%E2%80%93Cook_multiplication - as above https://en.wikipedia.org/wiki/Sch%C3%B6nhage%E2%80%93Strassen_algorithm - as above https://en.wikipedia.org/wiki/F%C3%BCrer%27s_algorithm - as above
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