How to Merge adjacent equal numbers?

Question

Hi , i wanna merge adjacent equal numbers.
for example 1,3,3,5 gets to 1,9,5 or
2,2,2,8 gets to 8,8

I have given code
"..." String merge (int [ ] ns, int i){

and I started with this

int k , p;
int[ ] ns = new int [intArr.length];

for ( k = i; k<= p; k++){
ns [k] = intArr[k];
}

but i don't know how to continue or of its even right... could someone please help me ?:)

Answer 1

1,3,3,5 becomes 1,9,5 or 1,6,5?

i think u mixed between intArr and ns in
int[ ] ns = new int [intArr.length];
i imagine u meant
int[ ] intArr = new int [ns.length];

its off the top of my head but in the for loop u can assign ns[k] to intArr[k]
and if ns[k] = ns[k-1]
u will sum intArr[k-1] = intArr[k-1] * ns[k]

a few things u might wanna note
1) u will need different indexes for ns and intArr in the loop (maybe while loop will be better) - ns can keep going forward but if its a streak of the same number intArr wont move from its current index
2) intArr can end up in the same size or smaller than ns - but atm u are defining him as in the same size

Answer 2

1,3,3 becomes 1,9

oh ok , thank you !!
I will overthink and change it
seems like a very dumb mistake made by me ..(I am new though)

Answer 3

why does it become 1,9? do u multiply or sum?

np btw :)

Answer 4

multiple ,
like 2,2,2,7 gets 8,7 cause (2*2*2)

Answer 5

good to know changed my first post from '+' to '*' ;)