【Easy】156. Merge Intervals

Given a collection of intervals, merge all overlapping intervals.

Example:

Given intervals => merged intervals:

[                     [
  (1, 3),               (1, 6),
  (2, 6),      =>       (8, 10),
  (8, 10),              (15, 18)
  (15, 18)            ]
]

解题思路

同【Medium】577. Merge K Sorted Interval Lists。

核心代码

略。