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Given an array of N numbers. Find out the number of pairs i and j such that i < j and Ai and Aj have atleast one digit common (For e.g. (11, 19) have 1 digit common but (36, 48) have no digit common)
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Given an array of N numbers. Find out the number of pairs i and j such that i < j and Ai and Aj have atleast one digit common (For e.g. (11, 19) have 1 digit common but (36, 48) have no digit common)