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credit card validator in Ruby
credit card validator in Ruby 1cardnumber = 4012888888881881
23def validlen?(arr)
4#checks for card length of 13, 15, or 16
5arr.length == 13 || arr.length == 15 || arr.length == 16
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credit card validator in c
credit card validator in c 1#include <math.h>
2#include <stdio.h>
345int main(void)
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