There is one question that is just asked As I remember only a few part of the question if someone can help\n\nN=4\n[4,10][7,13][20,30][1,40]--> 6,3,10,20\n[4,10]->10-4= paint 6\n[7-13]->13-10=paint 3\n[20,30]->30-20 paint 10\n[1,40]->20\nIf someone can provide a solution asap! I was thinking to merge the overlapping interval and keep in stack and everytime a new element is visited I will check the top of the stack and then make a conclusion. Again I am not sure the exact approach.

There is one question that is just asked As I remember only a few part of the question if someone can help\n\nN=4\n[4,10][7,13][20,30][1,40]--> 6,3,10,20\n[4,10