题解 | #密码强度等级#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            String n = sc.nextLine();
            char[] chars = n.toCharArray();
            int sum = getSum(chars);
            String res = getRes(sum);
            System.out.println(res);
        }
    }

    private static String getRes(int sum) {
        if (sum >= 90) {
            return "VERY_SECURE";
        }
        if (sum >= 80) {
            return "SECURE";
        }
        if (sum >= 70) {
            return "VERY_STRONG";
        }
        if (sum >= 60) {
            return "STRONG";
        }
        if (sum >= 50) {
            return "AVERAGE";
        }
        if (sum >= 25) {
            return "WEAK";
        } else {
            return "VERY_WEAK";
        }
    }

    private static int getSum(char[] chars) {
        int countN = 0, countL = 0, countU = 0, countO = 0;
        int countW = 0;
        int sum = 0;
        //长度
        if (chars.length <= 4) {
            sum += 5;
        } else if (chars.length >= 8) {
            sum += 25;
        } else {
            sum += 10;
        }
        //字母
        for (int i = 0; i < chars.length; i++) {
            if (Character.isLetter(chars[i])) {
                if (Character.isLowerCase(chars[i])) {
                    countL++;
                } else {
                    countU++;
                }
            } else if (Character.isDigit(chars[i])) {
                countN++;
            } else {
                countO++;
            }
            countW = countL + countU;
        }
        //数字标准
        if (countN > 0) {
            if (countN > 1) {
                sum += 20;
            } else {
                sum += 10;
            }
        }
        //符号标准
        if (countO > 0) {
            if (countO > 1) {
                sum += 25;
            } else {
                sum += 10;
            }
        }
        //字母标准
        if (countW > 0 && (countW == countL || countW == countU)) {
            sum += 10;
        } else if (countW == 0) {
            sum += 0;
        } else {
            sum += 20;
        }
        //奖励
        if (countN > 0 && countL > 0 && countU > 0 && countO > 0) {
            sum += 5;
        } else if (countW > 0 && countN > 0 && countO > 0) {
            sum += 3;
        } else if (countW > 0 && countN > 0 && countO == 0) {
            sum += 2;
        } else {
            sum += 0;
        }
        return sum;
    }
}