Question:\nGiven a person\'s work hours and an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],\u2026] (si < ei), print out the free time of this person. For example,\nwork hour: [0, 45]\nmeeting time: [3, 30],[5, 10],[15, 20]\nfree time: [0,3],[30,45]\n\n\nthis is variant of https://leetcode.com/problems/employee-free-time/\nbut here we need to find single person free time and we have work hour array .\nwhat should be the approach ? can any one please share the thoughts or code ?

Question:\nGiven a person\'s work hours and an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],\u2026] (si < ei), print out t