C 解法, 执行用时: 1ms, 内存消耗: 272KB, 提交时间: 2020-07-07

#include<stdio.h>
#include<string.h>

int lenScore(char password[], int passwordLength)
{
    if (4 >= passwordLength)
        return 5;
    else if (4 < passwordLength && 8 > passwordLength)
        return 10;
    else if (8 <= passwordLength)
        return 25;
}

int alphaScore(char password[], int passwordLength)
{
    int lowercase = 0, capital = 0;
    for(int i = 0; i < passwordLength; i++)
    {
        if('a' <= password[i] && 'z' >= password[i])
            lowercase++;
        if('A' <= password[i] && 'Z' >= password[i])
            capital++;
    }
    if (0 == lowercase && 0 == capital)
        return 0;
    else if(0 < lowercase && 0 < capital)
        return 20;
    else if(0 < lowercase || 0 < capital)
        return 10;
}

int digitScore(char password[], int passwordLength)
{
    int digit = 0;
    for(int i = 0; i < passwordLength; i++)
    {
        if('0' <= password[i] && '9' >= password[i])
            digit++;
    }
    if (0 == digit)
        return 0;
    else if(1 == digit)
        return 10;
    else if (1 < digit)
        return 20;
}

int symbolScore(char password[], int passwordLength)
{
    int symbol = 0;
    for(int i = 0; i < passwordLength; i ++)
    {
        if(('!' <= password[i] && '/' >= password[i]) || (':' <= password[i] && '@' >= password[i]) || ('[' <= password[i] && '`' >= password[i]) || ('{' <= password[i] && '~' >= password[i]))
            symbol++;
    }
    if(0 == symbol)
        return 0;
    else if(1 == symbol)
        return 10;
    else if(1 < symbol)
        return 25;
}

int extraScore(char password[], int passwordLength)
{
    int alpha = alphaScore(password, passwordLength);
    int digit = digitScore(password, passwordLength);
    int symbol = symbolScore(password, passwordLength);
    
    if(10 < alpha && 0 < digit && 0 < symbol)
        return 5;
    else if(0 < alpha && 0 < digit && 0 < symbol)
        return 3;
    else if(0 < alpha && 0 < digit && 0 == symbol)
        return 2;
    else
        return 0;
}

int Score(char password[], int passwordLength)
{
    int score = lenScore(password, passwordLength) + alphaScore(password, passwordLength) + digitScore(password, passwordLength) + symbolScore(password, passwordLength) + extraScore(password, passwordLength);
    return score;
}

int main()
{
    char password[1000];
    int passwordLength;
    int score = 0;
    
    while(scanf("%s", password) != EOF)
    {
        passwordLength = strlen(password);
        score = Score(password, passwordLength);
        //printf("%d\n", score);
        //printf("passwordLength:%d, len:%d, alpha:%d, digit:%d, symbol:%d, extra:%d\r\n", passwordLength, lenScore(password, passwordLength), alphaScore(password, passwordLength), digitScore(password, passwordLength), symbolScore(password, passwordLength), extraScore(password, passwordLength));
        if(90 <= score)
        {
            printf("VERY_SECURE\n");
            continue;
        }
        else if(80 <= score)
        {
            printf("SECURE\n");
            continue;
        }
        else if(70 <= score)
        {
            printf("VERY_STRONG\n");
            continue;
        }
        else if(60 <= score)
        {
            printf("STRONG\n");
            continue;
        }
        else if(50 <= score)
        {
            printf("AVERAGE\n");
            continue;
        }
        else if(20 <= score)
        {
            printf("WEAK\n");
            continue;
        }
        else if(0 <= score)
        {
            printf("VERY_WEAK\n");
            continue;
        }
    }
    return 0;
}

C 解法, 执行用时: 1ms, 内存消耗: 336KB, 提交时间: 2021-09-08

#include<stdio.h>
#include<string.h>
int main()
{
    int i=0,a=0,b=0,b1=0,b2=0,c=0,d=0,e=0;
    char ch;
    while(scanf("%c",&ch)!=EOF)
    {
        if(ch=='\n')
        {
            if(a>7) a=25;
            else if(a>4) a=10;
            else if(a<5) a=5;
            if(d==2) i=a+10*b+10*c+25+e;
            else i=a+10*b+10*c+10*d+e;
            if(i>=90)printf("VERY_SECURE\n");
            else if(i>=80)printf("SECURE\n");
            else if(i>=70)printf("VERY_STRONG\n");
            else if(i>=60)printf("STRONG\n");
            else if(i>=50)printf("AVERAGE\n");
            else if(i>=25)printf("WEAK\n");
            else if(i>=0)printf("VERY_WEAK\n");
            i=a=b=b1=b2=c=d=e=0;
        }
        a++;
        if(b!=2)
        {
            if(b1==0)
                if(ch>='a'&&ch<='z')
                    b1=1;
            if(b2==0)
                if(ch>='A'&&ch<='Z')
                    b2=1;
        }
        b=b1+b2;
        if(c<2)
            if(ch>='0'&&ch<='9')
                c++;
        if(d<2)
            if(ch>='!'&&ch<='/'||ch>=':'&&ch<='@'||ch>='['&&ch<='`'||ch>='{'&&ch<='~')
                d++;
        if(b>0&&c>0)
        {
            if(d==0)e=2;
            if(d>0)e=3;
            if(b==2&&d>0)e=5;
        }
    }
}