[2sem] pb21 done

2sem/programming basics/21/prac_qt/main.cpp

@@ -0,0 +1,12 @@
+// pb_21_100.cpp
+// Горбацевич Андрей
+#include "mainwindow.hpp"
+#include <QApplication>
+
+int main(int argc, char *argv[]) {
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}