SDE - 1

You are given a string 'S'. Your task is to check whether the string is palindrome or not. For checking palindrome, consider alphabets and numbers only and ignore the symbols and whitespaces.

Note :

String 'S' is NOT case sensitive.

Example :

Let S = “c1 O$d@eeD o1c”.
If we ignore the special characters, whitespaces and convert all uppercase letters to lowercase, we get S = “c1odeedo1c”, which is a palindrome. Hence, the given string is also a palindrome.

Ninja is playing with numbers but hates when he gets duplicate numbers. Ninja is provided an array, and he wants to remove all duplicate elements and return the array, but he has to maintain the order in which the elements were supplied to him.

How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

void solve() {
  int a[] = {1, 2, 3, 4, 5};
  int sum = 0;
  for(int i = 0; i < 5; i++) {
      if(i % 2 == 0) {
          sum += a[i];
      }
  }
  cout << sum << endl;
}

What is Linked List and Its types? (Learn)

You are given a Singly Linked List of integers. Return true if it has a cycle, else return false.

A cycle occurs when a node's next points back to a previous node in the list.

Example:

In the given linked list, there is a cycle, hence we return true.

Explain Software Development life cycle. (Learn)

Family Structure. (Practice)

Introduce yourself.
Where do you see yourself after 5 years?
Strengths and weaknesses.