Geeksforgeeks

Error

Given an array and an integer B, traverse the array (from the beginning) and if the element in array is B, double B and continue traversal. Find the value of B after the complete traversal.

**Example 1:**

**Input:**
N = 5, B = 2
arr[] = {1 2 3 4 8}
**Output:** 16
**Explanation**: B is initially 2. We get 2 at
the 1st index, hence B becomes 4.
Next, we get B at the 3rd index, hence B
becomes 8. Next, we get B at 4-th index,
hence B becomes 16.

**Example 1:**

**Input:**
N = 5, B = 3
arr[] = {1 2 3 4 8}
**Output:** 6
**Explanation**: B is initially 3. We get 3 at
the 2nd index, hence B becomes 6.

**Your Task:**

You don't need to read input or print anything. Your task is to complete the function **solve () **which takes the array arr[], its size N and an integer B as inputs and returns the final value of B after the complete traversal of the array.

**Expected Time Complexity: **O(N).

**Expected Auxiliary Space: **O(1).

**Constraints:**

1<=N<=50

1<=B<=1000

1<=arr[i]<=10^{18}

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Doubling the value

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