Change word to another word

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Praveen has two words. One is the source word and other is the destination word. Praveen can remove any character or characters from the source word and add any character or characters to the source word. He cannot change the order of characters in source word after characters are added. What is the minimum count of characters he should remove and/or add to make the source word to destination wor

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solution.cppC++17

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