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1688. Count of Matches in Tournament 👍

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class Solution {
 public:
  int numberOfMatches(int n) {
    return n - 1;
  }
};

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class Solution {
  public int numberOfMatches(int n) {
    return n - 1;
  }
}

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class Solution:
  def numberOfMatches(self, n: int) -> int:
    return n - 1