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Count of Matches in Tournament
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# Count of Matches in Tournament

Contributed by
Yash_5830
Easy
0/40
Avg time to solve 20 mins
Success Rate 80 %
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## Problem Statement

#### You are given a positive integer 'N' representing the number of teams playing in a tournament. Your task is to find the total number of matches played in the tournament if the condition for the tournament is as follows:

``````1. If the current number of teams(N) playing in the tournament is even then, a total of N / 2 matches will be played. The winning N / 2 teams will advance to the next round, and the losing N / 2 teams will be eliminated.

2. If the current number of teams(N) playing in the tournament is odd then, 1 team will be advanced to the next round directly, and a total of (N - 1) / 2 matches will be played. The winning (N - 1) / 2 teams will advance to the next round, and the losing (N - 1) / 2 teams will be eliminated.
``````
Detailed explanation ( Input/output format, Notes, Constraints, Images )
##### Sample Input 1:
``````1
9
``````
##### Sample Output 1:
``````8
``````
##### Explanation for sample input 1:
``````In the first round, 8 teams will play 4 matches, and 1 team will be directly advanced to the next round. So including the winners of the first round, a total of 5 teams will advance to the next round.

In the second round, 5 teams will play 2 matches, and 1 team will directly advance to the next round. So including the winners of the second round, a total of 3 teams will advance to the next round.

In the third round, 3 teams will play 1 match, and 1 team will directly advance to the next round. So including the winners of the third round, a total of 2 teams will advance to the next round.

In the final round, the 2 teams will play 1 match, and then there will be a winner of the tournament.

Therefore the total number of matches played is 4 + 2 + 1 + 1 = 8.
``````
##### Sample Input 2:
``````2
32
78
``````
##### Sample Output 2:
``````31
77
``````
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