Implement an efficient function to find the first non-repeating character in a given string.

Hard

Problem Statement

Sample Input

"gogolang"

Sample Output

Limits

Time: 2s · Memory: 256 MB

Code Editor

00:00

package main import "fmt" func firstNonRepeatingChar(s string) rune { // Your code here } func main() { fmt.Println(string(firstNonRepeatingChar("gogolang"))) // Expected Output: "l" }

Input

"gogolang"

Expected Output

Custom Input (stdin)

Program Output

> Run your code to see console output.

Programming Exercises

Implement an efficient function to find the first non-repeating character in a given string.

Problem Statement

Sample Input

Sample Output

Limits

Hint 1