1 #include<stdio.h> 2 #include<string.h> 3 #define maxn 100000 4 int main() 5 { 6     long int len,i,num=0; 7     int k,j; 8     char s[maxn]; 9     gets(s);10     len=strlen(s);11     for(i=0;i<len;i++)12     {13         if(s[i]==‘b‘&&s[i+1]==‘a‘&&s[i+2]==‘i‘&&s[i+3]==‘d‘&&s[i+4]==‘u‘)14         {15             num++;16             s[i]=‘g‘;17             s[i+1]=‘o‘;18             s[i+2]=‘o‘;19             s[i+3]=‘d‘;20             s[i+4]=s[i+5];21             i=i+4;22 23         }24         25     }26     s[i]=‘\0‘;27     printf("num=%ld\n",num);28     puts(s);29     30 31 }