lab5matchin

if (a0 == e.selected_answers[0]) {
        match_count++;
      }
      if (a1 == e.selected_answers[1]) {
        match_count++;
      }
      if (a2 == e.selected_answers[2]) {
        match_count++;
      }
      if (a3 == e.selected_answers[3]) {
        match_count++;
      }
      matches.push([match_count, e.username]);