Longest Substring Without Repeating Charactersmedium

package main

import "fmt"

func lengthOfLongestSubstring(s string) int {
	// TODO: sliding window with a map to track char positions
	return 0
}

func main() {
	fmt.Println(lengthOfLongestSubstring("abcabcbb")) // 3
	fmt.Println(lengthOfLongestSubstring("bbbbb"))    // 1
	fmt.Println(lengthOfLongestSubstring("pwwkew"))   // 3
}