Package g1901_2000.s1996_the_number_of_weak_characters_in_the_game

Class Solution

java.lang.Object
g1901_2000.s1996_the_number_of_weak_characters_in_the_game.Solution
public class Solution extends java.lang.Object
1996 - The Number of Weak Characters in the Game.

Medium

You are playing a game that contains multiple characters, and each of the characters has two main properties: attack and defense. You are given a 2D integer array properties where properties[i] = [attacki, defensei] represents the properties of the ith character in the game.

A character is said to be weak if any other character has both attack and defense levels strictly greater than this character’s attack and defense levels. More formally, a character i is said to be weak if there exists another character j where attackj > attacki and defensej > defensei.

Return the number of weak characters.

Example 1:

Input: properties = [[5,5],[6,3],[3,6]]

Output: 0

Explanation: No character has strictly greater attack and defense than the other.

Example 2:

Input: properties = [[2,2],[3,3]]

Output: 1

Explanation: The first character is weak because the second character has a strictly greater attack and defense.

Example 3:

Input: properties = [[1,5],[10,4],[4,3]]

Output: 1

Explanation: The third character is weak because the second character has a strictly greater attack and defense.

Constraints:

  • 2 <= properties.length <= 105
  • properties[i].length == 2
  • 1 <= attacki, defensei <= 105

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    numberOfWeakCharacters(int[][] properties)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • numberOfWeakCharacters

      public int numberOfWeakCharacters(int[][] properties)