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# Salesforce Interview Experience for Summer Internship (Off-Campus)

It is an interview experience of one of my friends who recently got an internship in Salesforce. Following are the details of her interview at Salesforce. I will write her experience from the first-person point of view.

It is an opportunity for students who are pursuing a bachelor’s degree and are in their pre-final year. Salesforce is a great company that offers a high CTC and has a great work culture.

There were 2 Technical interview rounds and 1 HR Round.

Interview Round 1: The interviewer just asked my name and directly started to ask the DSA questions. My questions are listed below:

After this, he asked me some basic concepts of oops like the difference between interfaces and abstract classes. After this, the interview ended. The duration of the interview was about 1 hour.

Interview Round 2: The second round started with my introduction as the interviewer asked me to introduce myself. Next, the interviewer asked me some DSA questions. Following are the questions:

Question: Design a queue that supports push and pop operations in the front, middle, and back.

Implement the FrontMiddleBack class:

• FrontMiddleBack() Initializes the queue.
• void push front(int val) Adds val to the front of the queue.
• void pushMiddle(int val) Adds val to the middle of the queue.
• void pushBack(int val) Adds val to the back of the queue.
• int popFront() Removes the front element of the queue and returns it. If the queue is empty, return -1.
• int popMiddle() Removes the middle element of the queue and returns it. If the queue is empty, return -1.
• int popBack() Removes the back element of the queue and returns it. If the queue is empty, return -1.
```Notice that when there are two middle position choices, the operation is performed on the frontmost
middle position choice. For example:

Pushing 6 into the middle of [1, 2, 3, 4, 5] results in [1, 2, 6, 3, 4, 5].
Popping the middle from [1, 2, 3, 4, 5, 6] returns 3 and results in [1, 2, 4, 5, 6].

Example 1:

Input:
["FrontMiddleBackQueue", "pushFront", "pushBack", "pushMiddle", "pushMiddle", "popFront",
"popMiddle", "popMiddle", "popBack", "popFront"]
[[], [1], [2], [3], [4], [], [], [], [], []]
Output:
[null, null, null, null, null, 1, 3, 4, 2, -1]
```

Explanation:

```FrontMiddleBackQueue q = new FrontMiddleBackQueue();
q.pushFront(1);   // [1]
q.pushBack(2);    // [1, 2]
q.pushMiddle(3);  // [1, 3, 2]
q.pushMiddle(4);  // [1, 4, 3, 2]
q.popFront();     // return 1 -> [4, 3, 2]
q.popMiddle();    // return 3 -> [4, 2]
q.popMiddle();    // return 4 -> [2]
q.popBack();      // return 2 -> []
q.popFront();     // return -1 -> [] (The queue is empty)```

Constraints:

```1 <= val <= 109
At most 1000 calls will be made to pushFront, pushMiddle, pushBack, popFront,
popMiddle, and popBack.```

After this, the interviewer asked me to explain the project briefly. Since my project was based on JavaScript, he asked me about the functions that I used in my project . The total duration of this round was also about 1 hour.

HR Round:

• The duration of this round was also about 1 hour.
• The interview again started with my brief intro.
• The interviewer gave me some puzzles to solve.
• After that, she asked me some work -style based questions.