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close #4204
This commit is contained in:
acbin
2023-06-09 18:52:05 +08:00
committed by GitHub
parent ad03086f54
commit 00282efd8b
521 changed files with 5233 additions and 7309 deletions
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51
src/main/java/com/thealgorithms/others/Verhoeff.java
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@@ -35,16 +35,16 @@ public class Verhoeff {
* Dihedral group</a>
*/
private static final byte[][] MULTIPLICATION_TABLE = {
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
{ 1, 2, 3, 4, 0, 6, 7, 8, 9, 5 },
{ 2, 3, 4, 0, 1, 7, 8, 9, 5, 6 },
{ 3, 4, 0, 1, 2, 8, 9, 5, 6, 7 },
{ 4, 0, 1, 2, 3, 9, 5, 6, 7, 8 },
{ 5, 9, 8, 7, 6, 0, 4, 3, 2, 1 },
{ 6, 5, 9, 8, 7, 1, 0, 4, 3, 2 },
{ 7, 6, 5, 9, 8, 2, 1, 0, 4, 3 },
{ 8, 7, 6, 5, 9, 3, 2, 1, 0, 4 },
{ 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 },
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
{1, 2, 3, 4, 0, 6, 7, 8, 9, 5},
{2, 3, 4, 0, 1, 7, 8, 9, 5, 6},
{3, 4, 0, 1, 2, 8, 9, 5, 6, 7},
{4, 0, 1, 2, 3, 9, 5, 6, 7, 8},
{5, 9, 8, 7, 6, 0, 4, 3, 2, 1},
{6, 5, 9, 8, 7, 1, 0, 4, 3, 2},
{7, 6, 5, 9, 8, 2, 1, 0, 4, 3},
{8, 7, 6, 5, 9, 3, 2, 1, 0, 4},
{9, 8, 7, 6, 5, 4, 3, 2, 1, 0},
};
/**
@@ -71,14 +71,14 @@ public class Verhoeff {
* {@code p(i+j,n) = p(i, p(j,n))}.
*/
private static final byte[][] PERMUTATION_TABLE = {
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
{ 1, 5, 7, 6, 2, 8, 3, 0, 9, 4 },
{ 5, 8, 0, 3, 7, 9, 6, 1, 4, 2 },
{ 8, 9, 1, 6, 0, 4, 3, 5, 2, 7 },
{ 9, 4, 5, 3, 1, 2, 6, 8, 7, 0 },
{ 4, 2, 8, 6, 5, 7, 3, 9, 0, 1 },
{ 2, 7, 9, 3, 8, 0, 6, 4, 1, 5 },
{ 7, 0, 4, 6, 9, 1, 3, 2, 5, 8 },
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
{1, 5, 7, 6, 2, 8, 3, 0, 9, 4},
{5, 8, 0, 3, 7, 9, 6, 1, 4, 2},
{8, 9, 1, 6, 0, 4, 3, 5, 2, 7},
{9, 4, 5, 3, 1, 2, 6, 8, 7, 0},
{4, 2, 8, 6, 5, 7, 3, 9, 0, 1},
{2, 7, 9, 3, 8, 0, 6, 4, 1, 5},
{7, 0, 4, 6, 9, 1, 3, 2, 5, 8},
};
/**
@@ -147,29 +147,20 @@ public class Verhoeff {
}
private static void checkAndPrint(String input) {
String validationResult = Verhoeff.verhoeffCheck(input)
? "valid"
: "not valid";
String validationResult = Verhoeff.verhoeffCheck(input) ? "valid" : "not valid";
System.out.println("Input '" + input + "' is " + validationResult);
}
private static void generateAndPrint(String input) {
String result = addVerhoeffChecksum(input);
System.out.println(
"Generate and add checksum to initial value '" +
input +
"'. Result: '" +
result +
"'"
);
"Generate and add checksum to initial value '" + input + "'. Result: '" + result + "'");
}
private static void checkInput(String input) {
Objects.requireNonNull(input);
if (!input.matches("\\d+")) {
throw new IllegalArgumentException(
"Input '" + input + "' contains not only digits"
);
throw new IllegalArgumentException("Input '" + input + "' contains not only digits");
}
}