Triplet $(2,3,4)$ is one of pits in this array, because sequence $[$A$[2],$ A$[3]]$ is strictly decreasing $(3>2)$

and sequence $[$A$[3],$ A$[4]]$ is strictly increasing $(2<0).$ Its depth is min$\{$A$[2]$ A$[3],$ A$[4]$ A$[3]\}=2.$

Triplet $(2,3,5)$ is another pit with depth $3.$ Triplet $(5,7,8)$ is yet another pit with depth $4.$ There is no

pit in this array deeper $($i$.$e$.,$ having depth greater$)$ than $4$ in java