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Logic-1 > shareDigit
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Given two ints, each in the range 10..99, return true if there is a digit that appears in both numbers, such as the 2 in 12 and 23. (Note: division, e.g. n/10, gives the left digit while the % "mod" n%10 gives the right digit.)

shareDigit(12, 23) → true
shareDigit(12, 43) → false
shareDigit(12, 44) → false

...Save, Compile, Run (ctrl-enter)

public boolean shareDigit(int a, int b) { }

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