Queue in Java — Easy Cheat Sheet for Interviews
1. Queue Using Array
Logic: Fixed-size array with front and rear pointers.
Mini Code:
int arr[] = new int[size];
int front = 0, rear = 0;
void enqueue(int x) {
arr[rear++] = x;
}
int dequeue() {
return arr[front++];
}
Trick: Overflow...
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