text: import React from 'react';
  import './App.css';
  import MainPage from './components/MainPage';
  
  function App() {
    return (
      <div className="App">
        <header>
          <p>Test of my data structures knowledge.</p>
        </header>
        <body>
          <MainPage />
        </body>
      </div>
    );
  }
  
  export default App;
  