Create Isograms - 7 kyu.cpp

Author: PythonCoder8

c++/Isograms - 7 kyu.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+#include <string>
+#include <vector>
+ 
+bool is_isogram(std::string string) {
+    std::string lower_string;
+    for (char c : string) {
+        lower_string += std::tolower(c);
+    }
+    std::vector<char> chars;
+    for (char i : lower_string) {
+        if (std::find(chars.begin(), chars.end(), i) != chars.end()) {
+            return false;
+        }
+        chars.push_back(i);
+    }
+    return true;
+}