Tortoise racing

龟1 v1
龟2 v2
距离 g

返回 [hour,minute,second]

  function race(v1,v2,g){
    if(v2 > v1) return null;
    let time = g / (v2 - v1);
    return   [Math.floor(time),Math.floor(time*60%60),Math.floor(time*3600%60)]
  }

  function race(v1,v2,g){
    if(v2 > v1) return null;
    let time = g / (v2 - v1) * 3600 * 1000;
    return [time.getHours().time.getMinutes(),time.getSeconds()]
  }