COC battle

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Nanu, a Clash of Clans player is so much obsessed with the game and its new update. She wants to win as much battles as she can. Each of the enemy clan has N troops of lowercase letters. And for the attack she takes an army of length M. In the new update win is given when first k troops she takes, can kill any of the k consecutive troops of the clan. Remember a troop of type 'a' can only kill

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solution.cppC++17

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