35 lines
909 B
Matlab
35 lines
909 B
Matlab
clear all;close all;clc;
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% Test the function with the provided numbers
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numbers = [5724, 5727, 112946];
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for i = 1:length(numbers)
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if checkdigit(numbers(i))
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fprintf('%d validates as: true\n', numbers(i));
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else
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fprintf('%d validates as: false\n', numbers(i));
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end
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end
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function isValid = checkdigit(n)
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matrix = [
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0, 3, 1, 7, 5, 9, 8, 6, 4, 2;
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7, 0, 9, 2, 1, 5, 4, 8, 6, 3;
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4, 2, 0, 6, 8, 7, 1, 3, 5, 9;
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1, 7, 5, 0, 9, 8, 3, 4, 2, 6;
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6, 1, 2, 3, 0, 4, 5, 9, 7, 8;
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3, 6, 7, 4, 2, 0, 9, 5, 8, 1;
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5, 8, 6, 9, 7, 2, 0, 1, 3, 4;
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8, 9, 4, 5, 3, 6, 2, 0, 1, 7;
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9, 4, 3, 8, 6, 1, 7, 2, 0, 5;
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2, 5, 8, 1, 4, 3, 6, 7, 9, 0
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];
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row = 0;
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nString = num2str(n);
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for i = 1:length(nString)
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d = str2double(nString(i));
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row = matrix(row+1, d + 1);
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end
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isValid = (row == 0);
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end
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