57. Insert Interval https://youtu.be/A8NUOmlwOlM?si=NI5pa2D5ecqIdVw9 class Solution: def insert(self, intervals: List[List[int]], newInterval: List[int]) -> List[List[int]]: res = [] intervals.sort(key=lambda x:x[0]) for i in range(len(intervals)): if newInterval[1] intervals[i][1]: # prev_r