adding cs235

cs235/lab04/main.cpp

@@ -0,0 +1,14 @@
+#include <iostream>
+#include <cassert>
+#include "expman.h"
+
+using namespace std;
+
+int main() {
+    expman e;
+    assert(e.isBalanced("{ { [ ( ) ] } ( ) }") == true);
+    assert(e.isBalanced("{ [ ) }") == false);
+    assert(e.isBalanced("{ ( [ ] } )") == false);
+    assert(e.isBalanced("{") == false);
+    return 0;
+}