题解 | #密码强度等级#--流程控制

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int sum = 0;
        while (in.hasNextLine()) {
            String str = in.nextLine();
            char[] chrs = str.toCharArray();
            int len = str.length();
            int lowLetterCount = 0;
            int upLetterCount = 0;
            int numCount = 0;
            int otherCount = 0;
            for (char chr : chrs) {
                if (Character.isDigit(chr)) {
                    numCount++;
                } else if (Character.isLetter(chr) && Character.isLowerCase(chr)) {
                    lowLetterCount++;
                } else if (Character.isLetter(chr) && Character.isUpperCase(chr)) {
                    upLetterCount++;
                } else {
                    otherCount++;
                }
            }
            // 密码长度得分
            if (len <= 4) {
                sum += 5;
            } else if (len >= 8) {
                sum += 25;
            } else {
                sum += 10;
            }
            // 字母得分
            if (lowLetterCount == 0 || upLetterCount == 0) {
                sum += 10;
            }
            if (lowLetterCount > 0 && upLetterCount > 0) {
                sum += 20;
            }
            // 数字得分
            if (numCount == 1) {
                sum += 10;
            }
            if (numCount > 1) {
                sum += 20;
            }
            // 符号得分
            if (otherCount == 1) {
                sum += 10;
            }
            if (otherCount > 1) {
                sum += 25;
            }
            // 奖励得分
            if (numCount > 0 && (lowLetterCount > 0 || upLetterCount > 0) &&
                    otherCount == 0) {
                sum += 2;
            }
            if (numCount > 0 && otherCount > 0 &&
                    Integer.min(lowLetterCount, upLetterCount) == 0 &&
                    Integer.max(lowLetterCount, upLetterCount) > 0) {
                sum += 3;
            }
            if (numCount > 0 && otherCount > 0 && lowLetterCount > 0 && upLetterCount > 0) {
                sum += 5;
            }
        }
        score(sum);
    }

    private static void score(int sum) {
        if (sum >= 90) {
            System.out.println("VERY_SECURE");
        } else if (sum >= 80 && sum < 90) {
            System.out.println("SECURE");
        } else if (sum >= 70 && sum < 80) {
            System.out.println("VERY_STRONG");
        } else if (sum >= 60 && sum < 70) {
            System.out.println("STRONG");
        } else if (sum >= 50 && sum < 60) {
            System.out.println("AVERAGE");
        } else if (sum >= 25 && sum < 50) {
            System.out.println("WEAK");
        } else {
            System.out.println("VERY_WEAK");
        }
    }
}