Create first-unique-character-in-a-string.go

Author: izharishaksa

first-unique-character-in-a-string.go

@@ -0,0 +1,16 @@
+//https://leetcode.com/problems/first-unique-character-in-a-string/
+
+package leetcode_solutions_golang
+
+func firstUniqChar(s string) int {
+	count := [26]int{}
+	for i := 0; i < len(s); i++ {
+		count[s[i]-'a']++
+	}
+	for i := 0; i < len(s); i++ {
+		if count[s[i]-'a'] == 1 {
+			return i
+		}
+	}
+	return -1
+}