1
/**
2
 * @param {string} num
3
 * @return {boolean}
4
 */
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var sumGame = function (num) {
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  function getInfo(s) {
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    var sum = 0;
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    var ques = 0;
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    for (let c of s.split(""))
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      if (c !== "?") sum += c - 0;
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      else ques++;
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    return [sum, ques];
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  }
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  function check(sum1, sum2, q1, q2, q) {
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    return sum1 + 9 * Math.min(q / 2, q1) > sum2 + 9 * Math.min(q / 2, q2);
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  }
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  var q = getInfo(num)[1];
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  var [sum1, q1] = getInfo(num.substring(0, Math.floor(num.length / 2)));
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  var [sum2, q2] = getInfo(
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    num.substring(Math.floor(num.length / 2), num.length)
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  );
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  if (sum1 < sum2) {
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    [sum1, sum2] = [sum2, sum1];
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    [q1, q2] = [q2, q1];
27
  }
28

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  return check(sum1, sum2, q1, q2, q) || check(sum2, sum1, q2, q1, q);
30
};