done up to chapter 8

.gitignore

@@ -1,3 +1,4 @@
 ex1
 ex3
 ex4
+ex5

Makefile

@@ -1,6 +1,6 @@
 CFLAGS=-Wall -g
 
-EXERCISES = ex1 ex3 ex4
+EXERCISES = ex1 ex3 ex4 ex5
 
 
 all: $(EXERCISES)

ex5.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+/* This is a comment. */
+int main(int argc, char *argv[])
+{
+    int distance = 100;
+
+    // this is also a comment
+    printf("You are %d miles away.\n", distance);
+
+    return 0;
+}