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What will be the output of the following code?
#include <iostream>
#include <queue>
using namespace std;
int main() {
   queue<int> myQueue;
   myQueue.push(1);
   myQueue.push(2);
   myQueue.push(3);
   while (!myQueue.empty()) {
       cout << myQueue.front() << " ";
       myQueue.pop();
   }
   return 0;
}
  • a)
    1 2 3
  • b)
    3 2 1
  • c)
    1 3 2
  • d)
    2 1 3
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What will be the output of the following code?#include <iostream>...
The code pushes the elements 1, 2, and 3 onto the queue. The while loop dequeues elements from the queue and prints them until the queue becomes empty.
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Community Answer
What will be the output of the following code?#include <iostream>...
Explanation:

1. Queue Initialization:
- A queue named `myQueue` of integer type is created.
- Elements 1, 2, and 3 are pushed into the queue using the `push()` function.

2. Printing Elements:
- The program enters a while loop that runs as long as the queue is not empty.
- Inside the loop, the front element of the queue is printed using `myQueue.front()` function.
- Then, the front element is removed from the queue using the `pop()` function.

3. Output:
- The elements are printed in the order they were pushed into the queue.
- Therefore, the output will be: 1 2 3
So, the correct answer is option 'A'.
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What will be the output of the following code?#include <iostream>#include <queue>using namespace std;int main() { queue<int> myQueue; myQueue.push(1); myQueue.push(2); myQueue.push(3); while (!myQueue.empty()) { cout << myQueue.front() << " "; myQueue.pop(); } return 0;}a)1 2 3b)3 2 1c)1 3 2d)2 1 3Correct answer is option 'A'. Can you explain this answer?
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