Leaderboard
Showing:
Handle Score
@Ibrahim Nash 6424
@blackshadows 6380
@mb1973 5704
@Quandray 5245
@akhayrutdinov 5111
@saiujwal13083 5046
@sanjay05 3762
@kirtidee18 3673
@mantu_singh 3532
@marius_valentin_dragoi 3523
@sushant_a 3459
Complete Leaderboard
Special array reversal
Easy Accuracy: 62.38% Submissions: 1395 Points: 2

Given a string S, containing special characters and all the alphabets, reverse the string without
affecting the positions of the special characters.

Example 1:

Input: S = "A&B"
Output: "B&A"
Explanation: As we ignore '&' and
then reverse, so answer is "B&A".

​Example 2:

Input: S = "A&x#
Output: "x&A#"
Explanation: we swap only A and x.


Your Task:  
You don't need to read input or print anything. Your task is to complete the function reverse() which takes the string as inputs and returns required reverse string.

Expected Time Complexity: O(|S|)
Expected Auxiliary Space: O(1)

Constraints:
1 ≤ |S| ≤ 105

to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Special array reversal

Output Window