**C++ only and no vectors or global variables. Thank you,
Write a recursive function to convert a character string of digits to an integer. Example: convert("1234) returns 1234. Hint: To convert a character to a number, subtract the ASCII value '0' from the character, then the function can return the value s[0] - '0'.
#include<iostream>
#include<math.h>
using namespace std;
int string_to_int(string s)
{
// base case
if(s.size() == 1)
{
return s[0] - '0'; // if string is of length 1, return that digit
}
else
{
int n = s.size();
int k = (int)pow(10,n-1);
return (s[0] - '0')*k + string_to_int(s.substr(1,n-1)); // recursion part
}
}
int main()
{
cout << string_to_int("1234") << endl;
}
**C++ only and no vectors or global variables. Thank you, Write a recursive function to convert...
Write a recursive function to convert a character string of digits to an integer. Example: convert(“1234”) returns 1234. Hint: To convert a character to a number, subtract the ASCII value ‘0’ from the character. For example, if the string s has only one character, then the function can return the value s[0] – ‘0’.
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