Increasing decreasing sequence

#1

i am unable to go about this problem’s solution

#2

what problem are facing ??
which thing your are not able to understand?

#3

how to find soluton of this problem

#4

iterate over array and check if it is greater or smaller than previous element
case1 :if it is greater means sequence is increasing here now for next time it can’t be decreasing

case2: if it is smaller than previous
then it should not increasing before it

if these condition not hold true ans is “false” otherwise “true”

#5

4 test cases are returning wrong ans.please tell what’s the error