Reverse a string

Coding problemEasyAsked in: Accenture, Capgemini, Cognizant, Infosys, Wipro

Given a string s, return its characters in reverse order.

Write the loop yourself. Do not call a ready-made reverse function or a one-line library shortcut: the interviewer wants to see how you walk the characters.

Spaces, digits and symbols are characters like any other and move too.

Examples

Example 1

Input: s = "hello"

Output: "olleh"

Example 2

Input: s = "ab cd"

Output: "dc ba"

The space moves with the other characters.

Example 3

Input: s = ""

Output: ""

Constraints

The length of s is between 0 and 100,000
s holds printable ASCII characters only

Run checks the 3 examples. Submit also runs the hidden tests: edge cases, large inputs and a time limit.

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