Hash Functions in Data Structures || Division Method || Mid Square || Folding Method || DS

Hashing in data structures is a technique used to efficiently store and retrieve data by transforming a given key into a unique index, which allows fast access to the associated value. This process typically involves generating an array index where data can be stored or looked up, significantly speeding up operations compared to other methods like linear search.

Hashing often uses a hash function that maps data to a specific index, and it can lead to collisions, where two keys produce the same index. Handling these collisions usually involves techniques like chaining or open addressing.

Hash Functions
1. Division Method
2. Mid Square Method
3. Folding Method

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[lovelytoufiq]

if we get only 2 values in mid square method which value we have to consider
and in digit folding method how to consider particular values to divide and fold them
like say 1234 we can divide 12 and 34 but in 12345 and more numbershow can we divide the values and how can we say that divide these 2 values or 3 values