I tried to implement this using string

#1

i tried the approach using string data structure but there is no output

link : https://pastebin.com/eaQNKnBi

please help , i am very curious.

#2

the size of string does not increase by doing s[i] if i does not exist.
Append by doing s += ‘(’

#3

image
image1920×1080 239 KB

you can see i tried implementing it. but it is not working.
can you provide me a working solution

#4

@pewpiyu this method is valid for character arrays but since you are using the string datatype you have to change the way you append to the string, like s += “(” instead of s[i] = “(”

#5

i am doing that only . see the image.

#6

@pewpiyu https://ideone.com/jvrSwX