729.js

/** ------------------------------------------------------------------------------
 * 
 * 729. My Calendar I
 * Topics: Array
 * https://leetcode.com/problems/my-calendar-i/description/
 * 
 ------------------------------------------------------------------------------ */

var MyCalendar = function () {
  this.cal = []
}

/**
 * @param {number} start
 * @param {number} end
 * @return {boolean}
 */
MyCalendar.prototype.book = function (start, end) {
  let l = 0,
    r = this.cal.length - 1

  while (l <= r) {
    const mid = Math.floor((r + l) / 2)
    const [s, e] = this.cal[mid]
    if (s < end && start < e) return false
    if (start >= e) {
      l = mid + 1
    } else {
      r = mid - 1
    }
  }

  this.cal.splice(l, 0, [start, end])
  return true
}

/**
 * Your MyCalendar object will be instantiated and called as such:
 * var obj = new MyCalendar()
 * var param_1 = obj.book(start,end)
 */