🚀(LEETCODE) First Unique Character

Author: kothariji

Leetcode - Top Interview Questions/387. First Unique Character in a String.cpp

@@ -0,0 +1,14 @@
+class Solution
+{
+public:
+    int firstUniqChar(string s)
+    {
+        unordered_map<char, int> mp1;
+        for (auto c : s)
+            mp1[c]++;
+        for (int i = 0; i < s.length(); i++)
+            if (mp1[s[i]] == 1)
+                return i;
+        return -1;
+    }
+};