Hdu 1039 字符串

本来以为是正则，结果只是字符串水题

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>

int main(){
    //freopen("in.txt","r",stdin);
    char str[22];

    char vowel[26]="aeiou";
    char consonants[26]="bcdfghjklmnpqrstvwxyz";

    while(scanf("%s",str) && strcmp(str,"end")){
        int tag[3];
        tag[0] = 0;
        int len = strlen(str);
        for(int i = 0;i < len;i++){
            for(int j = 0;j < 5;j++){
                if(str[i] == vowel[j]){
                    tag[0] = 1;
                    break;
                }
            }
        }

        //char ch[3];
        //ch[0] = str[0];
        tag[1] = 1;
        int flag[3] = {1,1,1};
        for(int i = 0;i < len-2;i++){
            flag[0] = 0;
            for(int j = 0;j < 21;j++){
                if(str[i] == consonants[j])
                    flag[0] = 1;
            }
            flag[1] = 0;
            for(int j = 0;j < 21;j++){
                if(str[i+1] == consonants[j])
                    flag[1] = 1;
            }
            flag[2] = 0;
            for(int j = 0;j < 21;j++){
                if(str[i+2] == consonants[j])
                    flag[2] = 1;
            }
            if(flag[0] == 1 && flag [1] == 1 && flag[2] == 1)
                tag[1] = 0;
        }

        for(int i = 0;i < len-2;i++){
            flag[0] = 0;
            for(int j = 0;j < 5;j++){
                if(str[i] == vowel[j])
                    flag[0] = 1;
            }
            flag[1] = 0;
            for(int j = 0;j < 5;j++){
                if(str[i+1] == vowel[j])
                    flag[1] = 1;
            }
            flag[2] = 0;
            for(int j = 0;j < 5;j++){
                if(str[i+2] == vowel[j])
                    flag[2] = 1;
            }
            if(flag[0] == 1 && flag [1] == 1 && flag[2] == 1)
                tag[1] = 0;
        }

        //char ch = str[0];
        tag[2] = 1;
        for(int i = 1;i < len;i++){
            if(str[i-1] == str[i])
                if(str[i] != 'e' && str[i] != 'o')
                    tag[2] = 0;
            //ch = str[i];
        }
        if(tag[0] == 1 && tag[1] == 1 && tag[2] == 1)
            printf("<%s> is acceptable.\n",str);
        else printf("<%s> is not acceptable.\n",str);
    }
    return 0;
}