字符串

最长不重复的字符串

func lengthOfLongestSubstring(s string) int {
    m := make(map[uint8]int)
    max, left, right, length := 0, 0, 0, len(s)
    for right < length {
        m[s[right]]++
        for m[s[right]] != 1 {
            m[s[left]]--
            left++
        }
        if max < right-left+1 {
            max = right - left + 1
        }
        right++
    }
    return max
}