London | 25-SDC-NOV | Fatma Degirmenci| Sprint 2 | Improve_with_caches#165
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fatmaevin wants to merge 2 commits into
Open
London | 25-SDC-NOV | Fatma Degirmenci| Sprint 2 | Improve_with_caches#165fatmaevin wants to merge 2 commits into
fatmaevin wants to merge 2 commits into
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cjyuan
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Jun 11, 2026
cjyuan
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Implementation looks good. Well done.
Comment on lines
+23
to
24
| if coin_index == len(coins): | ||
| return 0 |
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This is unrelated to cache, but when there is only one coin left to consider, there is a much quicker way to find out whether there is 0 or 1 way to make change for total.
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Self checklist
Changelist
Improve time complexity using memoization for recursive functions.