import requests


def list_repos(username):
    """Return a list of repositories for the given username using GitHub API."""
    url = f"https://api.github.com/users/{username}/repos"
    repos = []
    page = 1
    per_page = 100
    while True:
        resp = requests.get(url, params={"per_page": per_page, "page": page})
        if resp.status_code != 200:
            print(f"Error fetching repos: {resp.status_code}")
            break
        data = resp.json()
        if not data:
            break
        repos.extend(data)
        page += 1
    return repos


def main():
    username = "RK-A"
    repos = list_repos(username)
    for r in repos:
        print(f"{r['full_name']}: {r['html_url']}")


if __name__ == "__main__":
    main()