The swimming lane of the swimming pool is 50 meters long. Xiaoxiao and her classmates compete in the 200-meter swimming competition. How many times do they need to swim back and forth in the swimming lane?
游泳池的泳道长50米，笑笑和同学们进行200米泳比赛，需要在泳道内游几个来回？
<gadget id="calculator">200 / 50 / 2</gadget>
<output>2</output>

<result>2</result>