Giving two strings that represent a binary numbers, return as a string the sum of them.

Question

Giving  two strings that represent a binary numbers, return as a string the sum of them.

Anonymous · Accepted Answer

#include

using namespace std;
#include   
#include

int my_stoi(string s){
    vector num;
    const char* s_char = s.c_str();
    while(s_char[0] != 0x00){
        int digit = (int)s_char[0] - 48;
        num.push_back(digit);
        s_char++;
    }
    int final_num = 0;
    for(int i=num.size() - 1; i>=0; i--)
        final_num += num[i] * (pow(2,num.size() - i - 1));
    return final_num;
}

int main()
{
    string s1 = "1001", s2 = "101";
    cout << my_stoi(s1) + my_stoi(s2);

return 0;
}

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