[mypy] Fix type annotations for dynamic programming (#4687)

* Fix mypy error for knapsack.py

* Fix mypy error for longest_increasing_subsequence

* Fix mypy error for fractional_knapsack_2.py

imp committed 4y ago

c1b15a86baabd110347bd4d478d88bc2820824e5

Parent: 757d4fb

Committed by GitHub <noreply@github.com> on 9/3/2021, 9:49:23 AM