valid anagram solution

Author: dylan-jung

valid-anagram/dylan-jung.cpp

@@ -0,0 +1,14 @@
+class Solution {
+public:
+    bool isAnagram(string s, string t) {
+        if(s.size() != t.size()) return false;
+        unordered_map<char, int> m1;
+        unordered_map<char, int> m2;
+        for(char c: s) m1[c]++;
+        for(char c: t) m2[c]++;
+        for(auto const& item: m1) {
+            if(m2[item.first] != item.second) return false;
+        }
+        return true;
+    }
+};