Upper_Bound Function

#1

Sample Input
5
1 2 3 3 4
3
2
3
10
Sample Output
1
3
-1

for the given sample input, why does the output show index 1 and 3?? The upper_bound function returns an andress of element > key. So output should be
2
4
-1

#2

Hello @ritkumar

In the question u are asked to find the index of first and last occurrence of given key.
Note : Last occurrence !=upper bound

#3

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