【HDOJ】1073 Online Judge

这道题TLE了N多次，完全不明白为什么，稍微改了一下，居然过了。使用gets过的，看讨论帖有人还推荐用hash。

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

 #define LOCAL 0
 #define MAXNUM 5005
 #define isSpace(ch) (ch==' '||ch=='\t'||ch=='\n')

 char stand[MAXNUM];
 char data[MAXNUM];
 char word[MAXNUM];

 int main() {
     int n, len1, len2, i, j, flg;
 #if LOCAL
     FILE *fout = fopen("data", "w");
 #endif
     scanf("%d%*c", &n);

     while (n--) {
         scanf("%*s%*c");   // START
         len1 = ;
         while () {
             if (gets(word) == NULL) {
                 stand[len1++] = '\n';
                 continue;
             }
             if ( !strcmp(word, "END") )
                 break;
             strcpy(stand+len1, word);
             len1 += strlen(word);
             stand[len1++] = '\n';
         }
         stand[len1++] = '\0';
         scanf("%*s%*c");   // START
         len2 = ;
         while () {
             if (gets(word) == NULL) {
                 data[len2++] = '\n';
                 continue;
             }
             if ( !strcmp(word, "END") )
                 break;
             strcpy(data+len2, word);
             len2 += strlen(word);
             data[len2++] = '\n';
         }
         data[len2++] = '\0';
 #if LOCAL
         fprintf(fout, "standard:\n%s", stand);
         fprintf(fout, "data:\n%s", data);
 #endif
         i = j = flg = ;
         while (i<len1 && j<len2) {
             if (stand[i] == data[j]) {
                 j++;
                 i++;
             } else {
                 if ( isSpace(stand[i]) ) {
                     flg = ;
                     i++;
                 } else if ( isSpace(data[j]) ) {
                     flg = ;
                     j++;
                 } else {
                     flg = ;
                     break;
                 }
             }
         }
         if (flg == ) {
             printf("Wrong Answer\n");
             continue;
         }
         while (i<len1) {
             if ( isSpace(stand[i]) )
                 flg = ;
             else {
                 flg = ;
                 break;
             }
             ++i;
         }
         while (j<len2  && flg!=) {
             if ( isSpace(data[j]) )
                 flg = ;
             else {
                 flg = ;
                 break;
             }
             ++j;
         }
         if (flg==)
             printf("Wrong Answer\n");
         else if (flg==)
             printf("Presentation Error\n");
         else
             printf("Accepted\n");
     }
 #if LOCAL
     fclose(fout);
 #endif
     return ;
 }