test coverage

test.sh

@@ -12,9 +12,10 @@ for i in *.c; do
     if cmp $i.out $i.ans; then
         succ=$((succ+1))
         echo "Test '$i' passed"
+        rm $i.ans
     else
         echo "Test '$i' failed"
     fi
 done
 echo "Passed $succ/$all tests"
-rm *.c.out *.s *.ans a.out
+rm *.c.out a.out