Solution

All Implemented Interfaces:
```
public final class Solution

                    
```
3159 - Find Occurrences of an Element in an Array.
Medium
You are given an integer array nums, an integer array queries, and an integer x.
For each queries[i], you need to find the index of the <code>queriesi<sup>th</sup></code> occurrence of x in the nums array. If there are fewer than queries[i] occurrences of x, the answer should be -1 for that query.
Return an integer array answer containing the answers to all queries.
Example 1:
Input: nums = 1,3,1,7, queries = 1,3,2,4, x = 1
Output: 0,-1,2,-1
Explanation:
- For the 1<sup>st</sup> query, the first occurrence of 1 is at index 0.
- For the 2<sup>nd</sup> query, there are only two occurrences of 1 in nums, so the answer is -1.
- For the 3<sup>rd</sup> query, the second occurrence of 1 is at index 2.
- For the 4<sup>th</sup> query, there are only two occurrences of 1 in nums, so the answer is -1.
Example 2:
Input: nums = 1,2,3, queries = 10, x = 5
Output: -1
Explanation:
- For the 1<sup>st</sup> query, 5 doesn't exist in nums, so the answer is -1.
Constraints:
- <code>1 <= nums.length, queries.length <= 10<sup>5</sup></code>
- <code>1 <= queriesi<= 10<sup>5</sup></code>
- <code>1 <= numsi, x <= 10<sup>4</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 IntArray`	`occurrencesOfElement(IntArray nums, IntArray queries, Integer x)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- Solution
```
Solution()
```

Method Detail

occurrencesOfElement

 final IntArray occurrencesOfElement(IntArray nums, IntArray queries, Integer x)