Class Solution

java.lang.Object
g1301_1400.s1395_count_number_of_teams.Solution

public class Solution extends Object
1395 - Count Number of Teams\. Medium There are `n` soldiers standing in a line. Each soldier is assigned a **unique** `rating` value. You have to form a team of 3 soldiers amongst them under the following rules: * Choose 3 soldiers with index (`i`, `j`, `k`) with rating (`rating[i]`, `rating[j]`, `rating[k]`). * A team is valid if: (`rating[i] < rating[j] < rating[k]`) or (`rating[i] > rating[j] > rating[k]`) where (`0 <= i < j < k < n`). Return the number of teams you can form given the conditions. (soldiers can be part of multiple teams). **Example 1:** **Input:** rating = [2,5,3,4,1] **Output:** 3 **Explanation:** We can form three teams given the conditions. (2,3,4), (5,4,1), (5,3,1). **Example 2:** **Input:** rating = [2,1,3] **Output:** 0 **Explanation:** We can't form any team given the conditions. **Example 3:** **Input:** rating = [1,2,3,4] **Output:** 4 **Constraints:** * `n == rating.length` * `3 <= n <= 1000` * 1 <= rating[i] <= 105 * All the integers in `rating` are **unique**.
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • numTeams

      public int numTeams(int[] rating)