Find the Second Largest Element
Given an array or list of integers 'ARR', identify the second largest element in 'ARR'.
If a second largest element does not exist, return -1.
Example:
Input:
ARR = [2, 4, 5, 6, 8]
Output:
6
Explanation:
In the sequence, 8 is the largest and 6 is the second largest.
Input:
ARR = [5, 5, 5, 5, 5]
Output:
-1
Explanation:
There is no second largest element as all elements are identical.
Constraints:
1 ≤ T ≤ 100
where 'T' is the number of test cases.1 ≤ N ≤ 5000
where 'N' is the number of elements in 'ARR'.-10^9 ≤ ARR[i] ≤ 10^9
for each element in 'ARR'.
Note:
You do not need to print any output. Implement the function to return the desired results.
AnswerBot
4d
Find the second largest element in an array of integers.
Iterate through the array to find the largest and second largest elements.
Handle cases where all elements are identical.
Return -1 if a second la...read more
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