#include <iostream>
#include <vector>
using namespace std;
int main(void)
{
    int i, s, g;
    vector<int> a;
    cin >> s;
    for(i=1;i<=s;i++)
    {
        g = s;

        if(g<10) a.push_back(g);
        else {
            vector<int> temp;
            while(g > 0)
            {

                int k = g % 10;
                g = g / 10;
                temp.push_back(g);
            }
            for(int j=temp.size();j>0;j--)
            {
                a.push_back(temp[j]);
            }
        }
    }
    cout << a[s-1] << endl;
    return 0;
}

What is wrong with the code above ? It doesn't give me the appropriate results.

The vector a is supposed to hold the values from 1, 2, 3...up to s such that a = 12345..910111213... and print to output a[s]. Ex if s=15 a=123456789101112131415 and a[15] = 2 .

If someone could tell me what's the problem