Merge branch '2024/spring' into 2024/x

Author: rongxin-liu

hello/__init__.py

@@ -0,0 +1,26 @@
+import check50
+import check50.c
+
+
+@check50.check()
+def exists():
+    """hello.c exists"""
+    check50.exists("hello.c")
+
+
+@check50.check(exists)
+def compiles():
+    """hello.c compiles"""
+    check50.c.compile("hello.c", lcs50=True)
+
+
+@check50.check(compiles)
+def emma():
+    """responds to name Emma"""
+    check50.run("./hello").stdin("Emma").stdout("Emma").exit()
+
+
+@check50.check(compiles)
+def rodrigo():
+    """responds to name Rodrigo"""
+    check50.run("./hello").stdin("Rodrigo").stdout("Rodrigo").exit()