Given a list of integers, return a vector of vectors where each inner vector contains all numbers that appear the same number of times, grouped by frequency.
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By Marius on November 10th, 2025
Given a list of integers, return a vector of vectors where each inner vector contains all numbers that appear the same number of times, grouped by frequency.
| M | T | W | T | F | S | S |
|---|---|---|---|---|---|---|
| 1 | 2 | |||||
| 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |