convert pug to ejs

                                    // See this website: https://pughtml.com/

                                    html
  head
    title= title
    link(rel="stylesheet", href="/stylesheets/index.css")
  body
    div(id="editor-parent")
      div(id="problem")
        div(id="statement")
        div(id="input-format")
        div(id="output-format")
        div(id="constraints")
      div(id="solution")
        div(id="language-and-timer")
          select(id="language")
            for language in languages
              option(value="" + language.id + "")= language.name
          h3(id="time-left") Time left:
            span(id="timer-h")
            span(id="timer-m")
            span(id="timer-s")
        div(id="editor")
        div(id="input-output")
          div
            label(for="custom-input") custom input
            textarea(id="custom-input")
          div
            label(id="result-label", for="result") result
            textarea(id="result", disabled="true")
        button(id="compile-and-test") compile and test
    script(src="/javascripts/ace-builds/src-noconflict/ace.js", type="text/javascript")
    script(src="/javascripts/editor.js")