Longest contiguous subarray with one substitution

Revision en1, by jankit366, 2024-08-27 11:35:48

Given an array { 1, 7, 7, 2,3, 7, 6,-20}. Find the longest nondecreasing contiguous sequence with substitution. we can substitute any array element with any integer such as all occurences of 7 replaced with 1. In this way new array would be { 1,1,1,2,3,1,6,-20}. Only one substitution is allowed.

What can be the optimal solution for this?

Can someone help me with the approach?

Tags hashing, hashmap, optimization

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en1 English jankit366 2024-08-27 11:35:48 440 Initial revision (published)