Doubt on leetcode problem

#1

the question-https://leetcode.com/problems/count-sorted-vowel-strings/

Please correct my code and tell me my mistakes

#2

Modified Code

if you have any doubt in this feel free to ask

#3

for(int j=3;j>=0;j–){

why is the j counter startng from 3

and why is it v[j+1] and not v[J-1]

Also can u plz tell me what was wrong in my code???

#4

will you understand the pattern which we have to use?

there are only 5 characters
and for any value of n there will be only 1 answer possible starting with u
so i have consider only 4 remaining characters from index 3 to 0

you can watch this video for better understanding
Count Sorted Vowel String

#5

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