Merge pull request #1602 from MHamiid/patch-16

Create 205-Isomorphic-Strings.cpp

Author: tahsintunan

cpp/205-Isomorphic-Strings.cpp

@@ -0,0 +1,20 @@
+class Solution {
+public:
+    bool isIsomorphic(string s, string t) {
+        unordered_map<char, char> STMap, TSMap;
+
+        for(size_t i = 0; i < s.size(); i++)
+        {
+            // (STMap[s[i]] != 0) ===> If the char is not in the map
+            if((STMap[s[i]] != 0 && STMap[s[i]] != t[i]) || (TSMap[t[i]] != 0 && TSMap[t[i]] != s[i]))
+            {
+                return false;
+            }
+
+            STMap[s[i]] = t[i];
+            TSMap[t[i]] = s[i];
+        }
+
+        return true; 
+    }
+};