题解HJ87 | #密码强度等级#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String s = in.nextLine();

        int score = 0;

        int upperCharCount = 0;
        int lowerCharCount = 0;
        int numCount = 0;
        int signCount = 0;

        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) >= 'a' && s.charAt(i) <= 'z') {
                lowerCharCount++;
            }

            if (s.charAt(i) >= 'A' && s.charAt(i) <= 'Z') {
                upperCharCount++;
            }

            if (s.charAt(i) >= '0' && s.charAt(i) <= '9') {
                numCount++;
            }

            if (Integer.valueOf(s.charAt(i)) >= 0x21 &&
                    Integer.valueOf(s.charAt(i)) <= 0x2f) {
                signCount++;
            }

            if (Integer.valueOf(s.charAt(i)) >= 0x3A &&
                    Integer.valueOf(s.charAt(i)) <= 0x40) {
                signCount++;
            }

            if (Integer.valueOf(s.charAt(i)) >= 0x5B &&
                    Integer.valueOf(s.charAt(i)) <= 0x60) {
                signCount++;
            }

            if (Integer.valueOf(s.charAt(i)) >= 0x7B &&
                    Integer.valueOf(s.charAt(i)) <= 0x7E) {
                signCount++;
            }
        }

        //密码长度
        if (s.length() <= 4) {
            score += 5;
        } else if (s.length() >= 5 && s.length() <= 7) {
            score += 10;
        } else {
            score += 25;
        }

        //字母
        if (upperCharCount == 0 && lowerCharCount == 0) {
            score += 0;
        } else if ((upperCharCount == 0 && lowerCharCount > 0) || (upperCharCount > 0 &&
                   lowerCharCount == 0)) {
            score += 10;
        } else if (upperCharCount > 0 && lowerCharCount > 0) {
            score += 20;
        }

        //数字
        if (numCount == 0) {
            score += 0;
        } else if (numCount == 1) {
            score += 10;
        } else if (numCount > 1) {
            score += 20;
        }

        //符号
        if (signCount == 0) {
            score += 0;
        } else if (signCount == 1) {
            score += 10;
        } else if (signCount > 1) {
            score += 25;
        }

        //奖励
        if ((upperCharCount > 0 && lowerCharCount > 0)
                && numCount > 0 && signCount > 0) {
            score += 5;
        } else if ((upperCharCount > 0 || lowerCharCount > 0) && numCount > 0 && signCount > 0) {
            score += 3;
        } else if ((upperCharCount > 0 || lowerCharCount > 0) && numCount > 0) {
            score += 2;
        }

        String result = new String();

        if (score >= 90) {
            result = "VERY_SECURE";
        } else if (score >= 80) {
            result = "SECURE";
        } else if (score >= 70) {
            result = "VERY_STRONG";
        } else if (score >= 60) {
            result = "STRONG";
        } else if (score >= 50) {
            result = "AVERAGE";
        } else if (score >= 25) {
            result = "WEAK";
        } else if (score >= 0) {
            result = "VERY_WEAK";
        }

        System.out.println(result);
    }
}