Lexicographic Numbers

// Leetcode Discuss Topic
// https://leetcode.com/discuss/post/6691579/issue-with-recursion-and-stringstream-co-5z40/
#include <bits/stdc++.h>
using namespace std;

void printLex(int n, string ans, vector<int> &result){
    stringstream ss(ans);
    int num;
    ss >> num;
    if(num > n){
        return;
    }
    cout << ans << '\n';
    if(num != 0){
    result.push_back(num);
    }
    for(int i = 0; i <= 9; i++){
        if(ans == "" && i == 0){
            continue;
        }
        else{
            char numberToChar = i + '0';
            printLex(n, ans + numberToChar, result);
        }
    }
}

int main() {
    // your code goes here
    int n;
    cin >> n;
    vector<int> result;
    printLex(n, "", result);
    cout << "Vector: " << '\n';
    for(int i : result){
        cout << i << '\n';
    }
}