Geeksforgeeks

Error

Given two strings denoting non-negative numbers X and Y. Calculate the sum of X and Y.

**Example 1:**

**Input:**
X = "25", Y = "23"
**Output:**
48
**Explanation:**
The sum of 25 and 23 is 48.

**Example 2:**

**Input:**
X = "2500", Y = "23"
**Output:**
2523
**Explanation:**
The sum of 2500 and 23 is 2523.

**Your Task:**

Your task is to complete the function **findSum() **which takes two strings as inputs and returns the string without leading zeros. You do not need to take any input or print anything.

**Expected Time Complexity: **O(|X| + |Y|)

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

**Constraints:**

1 <= |X|, |Y| <= 10^{5}

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Sum of two large numbers

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