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Maximum Related Numbers

Algorithm · Google · Easy

You receive a sequence of two-digit integers. Treat two values as connected when they have at least one digit in common; for instance, 46 and 68 are connected because each includes 6. Find the largest number of list entries that can all be associated through one shared digit. Example The digit 4 occurs in 47, 24, and 43, so three values share that digit.

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