How can I visualize hierarchy chart leaderboard in C++?

Question

Leaderboard Examples

Can anyone help me on how to make a hierarchy chart type of leaderboard in C++ like in the example given?

I've tried using vector, but it seems like the results is not neat/clean. Can anyone help me how to add the lines like this:

                                    Rank1
                                      |
               +----------------------+-----------------------+
            Rank2                                            Rank3
              |                                               |
   +----------+----------+                           +--------+--------+
Rank4                   Rank5                      Rank6              Rank7

and so on until Rank31.

#include <iostream>
#include <vector>
#include <string>

using namespace std;

// Function to print a row of winners
void printRow(const vector<string>& row, int totalWidth) {
    int elements = row.size();
    int spaceBetween = (totalWidth - elements) / (elements + 1);
    for (int i = 0; i < elements; ++i) {
        for (int j = 0; j < spaceBetween; ++j)
            cout << " ";
        cout << row[i];
    }
    cout << endl;
}

// Function to print the winners' chart
void printWinnersChart() {
    vector<vector<string>> winnersChart = {
        {"Bob"},
        {"Alice", "Charlie"},
        {"David", "Eve", "Frank", "Grace"},
        {"Henry", "Isabella", "Jack", "Kate", "Liam", "Mia", "Noah", "Olivia"},
        {"Penelope", "Quinn", "Ryan", "Sophia", "Thomas", "Uma", "Victoria", "William", "Xavier", "Yara", "Zoe", "Adam", "Bella", "Caleb", "Diana", "Ethan"}
    };

    int totalWidth = 80;

    for (const auto& row : winnersChart) {
        printRow(row, totalWidth);
    }
}

int main() {
    cout << "Figure 2: Sample of the winners' chart" << endl;
    printWinnersChart();

    //wait for the user to press enter to exit terminal
    cin.get();

    return 0;
}