Given two strings S1 and S2 as input. Your task is to concatenate two strings and then reverse the string. Finally print the reversed string.
Example 1:
Input: S1 = "Geeks" , S2 = "forGeeks"
Output: "skeeGrofskeeG"
Explanation: Concatenating S1 and S2 to
get "GeeksforGeeks" then reversing it to
"skeeGrofskeeG".
Example 2:
Input: S1 = "Practice" , S2 = "Geeks"
Output: "skeeGecitcarP"
Explanation: Concatenating S1 and S2 to
get "PracticeGeeks" then reversing it to
"skeegecitcarP".
Your Task:
You dont need to read input or print anything. Complete the function conRevstr() which takes S1 and S2 as input parameter and returns the sting final_s after concatenating and reversing.
Expected Time Complexity: O(|S1| + |S2|)
Expected Auxiliary Space: O(|S1| + |S2|)
Constraints:
1<= |S1| <=1000
1<= |S2| <=1000

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