Test case 1(palindrome)

#1

1st test case is wrong.

#2

Hello @S19LPN0126,

It is instructed in the question to write a recursive function.
Please, solve these problems as required by the question.

Now, coming back to your doubt:

  1. how are you so sure that there would not be more than 20 elements in he array.
    Solution:
    int n;
    cin >> n;
    int a[n];

  2. Your program is not working if there are even number of elements in the array:
    Solution:
    2.1. if (b > e){}
    because in case of even number, b and e will never be equal
    2.1. while( a[b] == a[e] && b<=e){}
    As the change in 2.1. will cause problem for odd number, we also modified the condition of while loop.

Hope, this would help.
Give a like, if you are satisfied.

#3

I tried b<=e.
Because of that 1st and 3rd test case are coming out wrong.

And thanks for pointing out recursive function . Forgot that.

#4

You have to implement both the corrections i have specified in point 2.

Here’s your modified code:

Give a like, if you are satisfied.

1 Like