feat(Week04): Add exercises and solutions

1 files changed, 21 insertions, 0 deletions

diff --git a/Week04/Exercise02.cpp b/Week04/Exercise02.cpp
new file mode 100644
index 0000000..9e59750
--- /dev/null
+++ b/Week04/Exercise02.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+
+int main() {
+    char letter;
+    std::cin >> letter;
+
+    if ('a' <= letter && letter <= 'z') {
+        std::cout << "Lowercase letter";
+    }
+    else if ('A' <= letter && letter <= 'Z') {
+        std::cout << "Uppercase letter";
+    }
+    else if ('0' <= letter && letter <= '9') {
+        std::cout << "Digit";
+    }
+    else {
+        std::cout << "Other";
+    }
+
+    return 0;
+}