1 files changed, 19 insertions, 0 deletions
diff --git a/week03/exercise03.cpp b/week03/exercise03.cpp
new file mode 100644
index 0000000..bc7879b
--- /dev/null
+++ b/week03/exercise03.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+
+int main() {
+	char input;
+	std::cin >> input;
+	while (input != '^') {
+		if (('A' <= input && input <= 'Z') ||
+		    ('a' <= input && input <= 'z')) {
+			std::cout << "letter" << std::endl;
+		}
+		else if ('0' <= input && input <= '9') {
+			std::cout << "digit" << std::endl;
+		}
+		else {
+			std::cout << "other" << std::endl;
+		}
+		std::cin >> input;
+	}
+}