Package g0601_0700.s0611_valid_triangle_number

Class Solution

java.lang.Object
g0601_0700.s0611_valid_triangle_number.Solution
public class Solution extends java.lang.Object
611 - Valid Triangle Number.

Medium

Given an integer array nums, return the number of triplets chosen from the array that can make triangles if we take them as side lengths of a triangle.

Example 1:

Input: nums = [2,2,3,4]

Output: 3

Explanation: Valid combinations are: 2,3,4 (using the first 2) 2,3,4 (using the second 2) 2,2,3

Example 2:

Input: nums = [4,2,3,4]

Output: 4

Constraints:

  • 1 <= nums.length <= 1000
  • 0 <= nums[i] <= 1000

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    triangleNumber(int[] nums)
     

    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

    • triangleNumber

      public int triangleNumber(int[] nums)