Contains Duplicate
Total Accepted: 1202 Total Submissions: 3067My Submissions
Question Solution
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct.
Show Tags
Have you met this question in a real interview?
Yes
No
public class Solution {
public boolean containsDuplicate(int[] nums) {
Map<Integer,Integer> x=new HashMap<Integer, Integer>();
for(int i=0;i<nums.length;i++)
{
if(x.get(nums[i])==null)
{
x.put(nums[i],1);
}
else
return true;
}
return false;
}
}