Recursion:-convert string into integer

#1

how to think about converting string to an integer using recursion.

#2

You can directly convert any string having Integers into integer by using stoi(string) function which return integer
string s = 456;.
int n = stoi(s);
now n will be equal to 456;
By recursion you will have to take all the digits one by one and then you will have to accumulate them all.
For taking each digits do s[i]-‘0’ to get the integer and accumulate it by multiplying them by power of 10.

#3

I am not able to understand this question,can any elaborate it with other test case.

#4

please provide question link

#5

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