CSUOJ 1226: ACM小组的内战

http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1226

这也是月赛题，不知道当时怎么想的，居然没有写这道题...两个字符串中的字符有对应的关系，一对多和多

对一都不行...

#include<cstdio>
#include<cstring>
#include<cstdlib>
#define SIZE 300

char s1[SIZE], s2[SIZE], s3[SIZE], s4[SIZE], a[SIZE], b[SIZE], c[SIZE], d[SIZE];
bool f1[100], f2[100];

int main()
{
    while( scanf( "%s%s%s%s", s1, s2, s3, s4) == 4)
    {
        memset( f1, false, sizeof f1);
        memset( f2, false, sizeof f2);
        int len = strlen( s1);
        for( int i = 0; i < len; i ++)
        {
            if( !f1[ s1[i] - 48 ]  && !f2[ s2[i] - 48] ) {
                a[ s1[i] - 48 ] = s2[i];
                f1[ s1[i] - 48 ] = true;
                b[ s2[i] - 48 ] = s1[i];
                f2[ s2[i] - 48 ] = true;
            }
            if( f1[ s1[i] - 48 ] && a[ s1[i] - 48 ] != s2[i])
                f1[ s1[i] - 48 ] = false;

            if( f2[ s2[i] - 48 ] && b[ s2[i] - 48 ] != s1[i])
                f2[ s2[i] - 48 ] = false;
        }
        bool flag = true;
        len = strlen(s3);
        for( int i = 0; i < len; i ++)
        {
            if( !f1[ s3[i] - 48 ]) {
                flag = false;
                break;
            }
            else
                c[i] = a[ s3[i] - 48 ];
        }
        if( flag)
            for( int i = 0; i < len; i ++)
                printf( "%c", c[i]);
        else
            printf( "Wrong");
        printf( "\n");
        flag = true;
        len = strlen(s4);
        for( int i = 0; i < len; i ++)
        {
            if( !f2[ s4[i] - 48 ]) {
                flag = false;
                break;
            }
            else
                d[i] = b[ s4[i] - 48];
        }
        if( flag)
            for( int i = 0; i < len; i ++)
                printf( "%c", d[i]);
        else
            printf( "Wrong");
        printf( "\n");
    }
    return 0;
}