ISBN13 check digit: Difference between revisions
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=={{header|K}}==
<syntaxhighlight lang=K>digits: {x[&(x>"/")&x<":"]-"0"}
isbn13c: 0=10!+/{x*(#x)#1 3} digits@
Line 1,899 ⟶ 1,900:
isbn13c "978-1788399083"
0</syntaxhighlight>
▲tested with ngn/k
=={{header|Kotlin}}==
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