Square (Block)

4 rounds·2-3 weeks·7 patterns·25% hard

Key patterns

Showing 3 of 7

1arrays hashing

medium90%

2trees

medium80%

3dp 1d

hard75%

4string

medium70%

5bfs

medium65%

+4 more patterns

Showing 3 of 5

Design Payment Processingvery common

Serialize and Deserialize Treecommon

LRU Cachecommon

Design POS Systemcommon

Valid Parenthesescommon

+2 more must-know questions

Showing 1 of 4 rounds

1. Technical phone screen45 min

codingbackground

2. Algorithm round60 min

algorithmsdata-structures

+3 more interview rounds

Pacemoderate

Optimal requiredno

Hints givenyes

1/5

Entry$XXX,XXX

Mid$XXX,XXX

Senior$XXX,XXX

Enter your interview date → we prioritize Square (Block)'s top patterns → you get a day-by-day schedule.

The average Square (Block) candidate needs 13 hours to cover all patterns.