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Results tagged with checksum
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user 3077
A checksum is a small chunk of data calculated from another larger piece of data, used to detect any transmission errors in the data. Use this tag for questions related to calculating or verifying checksums. (See also hashing)
1
vote
Calculate ISBN-13 check digit
Groovy 75, 66 chars
i={int i;it+(10-it.inject(0){t,c->t+(i++&1?:3)*(c as int)}%10)%10}
use:
String z = "978030640615"
println i(z)
-> 9780306406157