Puzzles
Prime Optimization
import java.time.LocalDate; import java.time.format.DateTimeFormatter; import java.util.Arrays; public class PasswordValidation { private static final String TODAY_DATE = LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd")); private static final String[] VALID_MONTHS = { "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec" }; private static final int[] PRIME = {23,29,31,37,41,43,47}; public static boolean validatePassword(String password) { if (password.length() < 20 || password.length() > 50 || Arrays.binarySearch(PRIME, password.length()) < 0 || !password.contains(String.valueOf(password.length())) || !password.contains(TODAY_DATE) || !Arrays.stream(VALID_MONTHS).anyMatch(s -> password.toLowerCase().contains(s))) return false; else if (!password.matches(("(.*[A-Z].*){3,}")) || !password.matches("(.*[a-z].*){1,}") || !password.matches("(.*[-._@#$&].*){1,}") || password.matches(".*[-._@#$&][-._@#$&].*")) return false; else if (Arrays.stream(password.split("")).filter(s -> s.matches("[0-9]")).mapToInt(s -> Integer.valueOf(s)).sum() < 25) return false; else return true; } }
- import java.time.LocalDate;
- import java.time.format.DateTimeFormatter;
- import java.util.Arrays;
- public class PasswordValidation {
- private static final String TODAY_DATE = LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd"));
private static final String[] VALID_MONTHS = { "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct","nov", "dec" };- private static final String[] VALID_MONTHS = { "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec" };
- private static final int[] PRIME = {23,29,31,37,41,43,47};
- public static boolean validatePassword(String password) {
if (password.length() < 20 || password.length() > 50 || !isPrime(password.length())- if (password.length() < 20 || password.length() > 50 || Arrays.binarySearch(PRIME, password.length()) < 0
- || !password.contains(String.valueOf(password.length())) || !password.contains(TODAY_DATE)
- || !Arrays.stream(VALID_MONTHS).anyMatch(s -> password.toLowerCase().contains(s)))
- return false;
- else if (!password.matches(("(.*[A-Z].*){3,}"))
- || !password.matches("(.*[a-z].*){1,}")
- || !password.matches("(.*[-._@#$&].*){1,}")
- || password.matches(".*[-._@#$&][-._@#$&].*"))
- return false;
- else if (Arrays.stream(password.split("")).filter(s -> s.matches("[0-9]")).mapToInt(s -> Integer.valueOf(s)).sum() < 25)
- return false;
- else return true;
- }
public static boolean isPrime(int n) {for (int i = 2; i <= Math.sqrt(n); i++) {if (n % i == 0)return false;}return true;}- }