Length of the longest substring without repeating characters
Method 1 (Brute Force Method)
We can consider all substrings.
One by one and check for each substring whether it contains all unique characters or not.
There
Hacker Earth Questions
Find loop in Singly linked list
There are several ways to find loop in singly linked list,
Loop Node5 Next pointer is point to Node3 in Singly Linked List
1 ---- 2 ---- 3 ---- 4 ---- 5
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- Hashmap
- Floyd’s