Package g0201_0300.s0217_contains_duplicate

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    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:

    • <code>1 <= nums.length <= 10<sup>5</sup></code>

    • <code>-10<sup>9</sup><= numsi<= 10<sup>9</sup></code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Boolean containsDuplicate(IntArray nums)

      • Methods inherited from class java.lang.Object

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