Why are we creating a dp 2d vector here not a simple 2 d array

[Parmeet-Kalsi-1631789033630118 (Parmeet Singh Kalsi)]

why are we creating a dp 2d vector here not a simple 2 d array

[Kartikkhariwal1 (Kartik Khariwal)]

Hey @Parmeet-Kalsi-1631789033630118
You can create either of them .