TLE in 4 testcases and WA in 4 testcases

#1

Refer for code:

#2

The problem can be solved by (Sliding Window Technique using Deque) as constraints are of range 1<=N<=10^7
1<=k<=N
1 <= Ai <= 100000.
I have modified your code https://ide.codingblocks.com/s/249560
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Thanks!

#3

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