init commit

learncthehardway/4/Makefile

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+CFLAGS=-Wall -g
+
+clean:
+		rm -f ex4

learncthehardway/4/ex4.c

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+#include <stdio.h>
+
+/* Warning: This program is wrong on purpose. */
+
+int main()
+{
+    int age = 10;
+    int height;
+
+    printf("I am %d years old.\n");
+    printf("I am %d inches tall.\n", height);
+
+    return 0;
+}