Package g0201_0300.s0217_contains_duplicate

Class Solution

java.lang.Object

g0201_0300.s0217_contains_duplicate.Solution

public class Solution
extends Object

217 - Contains Duplicate.<p>Easy</p> <p>Given an integer array <code>nums</code>, return <code>true</code> if any value appears <strong>at least twice</strong> in the array, and return <code>false</code> if every element is distinct.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> nums = [1,2,3,1]</p> <p><strong>Output:</strong> true</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> nums = [1,2,3,4]</p> <p><strong>Output:</strong> false</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> nums = [1,1,1,3,3,4,3,2,4,2]</p> <p><strong>Output:</strong> true</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= nums.length <= 10⁵</code></li> <li><code>-10⁹ <= nums[i] <= 10⁹</code></li> </ul>

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)