Maximum Number of Tasks You Can Assign LeetCode solution in JavaScript

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var maxTaskAssign = function (tasks, workers, pills, strength) {
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  workers.sort((b, a) => b - a);
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  tasks.sort((b, a) => b - a);
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  let lTasks = -1,
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    rTasks = Math.min(tasks.length, workers.length) - 1;
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  while (lTasks < rTasks) {
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    const midTasks = (lTasks + rTasks + 1) >> 1;
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    let t = midTasks;
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    for (
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      let w = workers.length - 1, freePills = pills, queue = [];
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      t >= 0;
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      t--
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    ) {
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      if (queue[0] >= tasks[t]) {
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        queue.shift();
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      } else if (workers[w] >= tasks[t]) {
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        w--;
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      } else if (freePills > 0) {
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        while (w >= 0 && workers[w] + strength >= tasks[t])
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          queue.push(workers[w--]);
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        if (queue.length == 0) break;
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        queue.pop(), freePills--;
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      } else break;
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    }
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    t == -1 ? (lTasks = midTasks) : (rTasks = midTasks - 1);
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  }
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  return lTasks + 1;
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};