Package g0201_0300.s0217_contains_duplicate

Class Solution

java.lang.Object
g0201_0300.s0217_contains_duplicate.Solution
public class Solution extends java.lang.Object
217 - Contains Duplicate.

Easy

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.

Example 1:

Input: nums = [1,2,3,1]

Output: true

Example 2:

Input: nums = [1,2,3,4]

Output: false

Example 3:

Input: nums = [1,1,1,3,3,4,3,2,4,2]

Output: true

Constraints:

  • 1 <= nums.length <= 105
  • -109 <= nums[i] <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    containsDuplicate(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

    • containsDuplicate

      public boolean containsDuplicate(int[] nums)