LeetCode 2339: All the Matches of the League Solution

Master LeetCode problem 2339 (All the Matches of the League), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

2339. All the Matches of the League

Easy

Database

Problem Explanation

Explanation

To generate all the matches of a league with n teams, we can simulate a round-robin tournament where each team plays against every other team exactly once. We iterate through all pairs of teams and generate a match for each pair. The total number of matches will be n * (n-1) / 2.

Solution Code

public List<String> allMatchesOfTheLeague(int n) {
    List<String> matches = new ArrayList<>();
    for (int i = 1; i <= n; i++) {
        for (int j = i + 1; j <= n; j++) {
            matches.add(i + " vs " + j);
        }
    }
    return matches;
}

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