题解 | #密码强度等级#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static int getLen(String s) {
        int len = s.length();
        if(len <= 4) {
            return 5;
        } else if (len >= 5 && len <= 7) {
            return 10;
        } else {
            return 25;
        }   
    }
    public static int getLetter(String s) {
        boolean isLowerCase = false;
        boolean isUpperCase = false;
        for(int i = 0; i < s.length() ; i++) {
            char ch = s.charAt(i);
            if((ch >= 'a' && ch <= 'z') ) {
                isLowerCase = true;
            } else if ((ch >= 'A' && ch <= 'Z')) {
                isUpperCase = true;
            }
        } 
        if(isLowerCase && isUpperCase) {
            return 20;
        } else if (isLowerCase || isUpperCase) {
            return 10;
        } else {
            return 0;
        }
    }
    public static int getSum(String s) {
        int count = 0;
        for(int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            if(ch >= '0' && ch <= '9') {
                count++;
            }
        }
        if(count > 1) {
            return 20;
        } else if (count == 1) {
            return 10;
        } else {
            return 0;
        }
    }
    public static int getSymbol(String s) {
        int count = 0;
        for(int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            if(!(ch >= 'a' && ch <= 'z') && 
            !(ch >= 'A' && ch <= 'Z') &&
            ! (ch >= '0' && ch <= '9')) {
                count++;
            }
        }
        if(count > 1) {
            return 25;
        } else if (count == 1) {
            return 10;
        } else {
            return 0;
        }
    }
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            String s = in.nextLine();
            int sum = 0; 
            int sum1 = getLen(s);
            int sum2 = getLetter(s);
            int sum3 = getSum(s);
            int sum4 = getSymbol(s);
            if(sum2 != 0 && sum3 != 0 && sum4 == 0) {
                sum = sum1 + sum2 + sum3 + sum4 + 2;
            } else if (sum2 != 20 && sum3 != 0 && sum4 != 0) {
                sum = sum1 + sum2 + sum3 + sum4 + 3;
            } else if (sum2 == 20 && sum3 != 0 && sum4 != 0) {
                 sum = sum1 + sum2 + sum3 + sum4 + 5;
            } else {
                 sum = sum1 + sum2 + sum3 + sum4;
            }
            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 if (sum >= 0 && sum < 25) {
                System.out.println("VERY_WEAK");
            }
        }
    }
}