Growth score
A budgeting app stores one account-balance snapshot per month. The product team wants a 'growth score': the largest number of snapshots you can pick — keeping their original order but skipping any months you like — so that every picked balance is strictly higher than the one picked before it. Given the snapshots (at most 1000), return that count. An empty list returns 0. For example, [10, 9, 2, 5, 3, 7, 101, 18] gives 4 via 2, 5, 7, 101.
Implement
longest_growth_run(balances: list[int]) → intExamples
in
[[10,9,2,5,3,7,101,18]]out4in
[[3,3,3]]out1What a strong answer looks like
State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
0:00 of about 16 min
solution.py
InputExpectedGot
[[10,9,2,5,3,7,101,18]]4not run yetsample[[3,3,3]]1not run yetsample