I made a video discussing the key idea behind problem F. A Simple problem from last Codeforces round.
Video link : https://youtu.be/uKtZd7Oedcc
I made a video discussing the key idea behind problem F. A Simple problem from last Codeforces round.
Video link : https://youtu.be/uKtZd7Oedcc
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Much of the greedy idea just comes from the formula. You choose the max positions because the sum needs to be maximized.