A,B -> if idea born in your mind you can solve it else never
C -> casework + greedy
D -> casework + constructive type of this problem like A,B
The main thing is free version of gpt can solve A-D easily
A,B -> if idea born in your mind you can solve it else never
C -> casework + greedy
D -> casework + constructive type of this problem like A,B
The main thing is free version of gpt can solve A-D easily