Find the first repeating number from unsorted array.
AnswerBot
1y
Find the first repeating number from an unsorted array.
Iterate through the array and keep track of seen numbers using a hash set.
If a number is already in the set, it is the first repeating number.
Ret...read more
Anonymous
author
2y
We can use set, first define a set data structure and do iteration over given array. While doing iteration add 1 by 1 element in array and while adding check wheather it is present in set or not. When...read more
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