Chef and Alphabets

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Chef has now started a new restaurant in your city, but he can serve only one customer per day. The restaurant is pre-booked for $N$ days, and each customer has decided one out of $26$ tasty dishes from the menu (there are only $26$ dishes on the menu). Each dish on the menu is represented by one of the $26$ lowercase English alphabet. Now the difficulty for cooking each dish is alphabetically inc

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solution.cppC++17

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