题解 | BFS

#include <stdio.h>
#include<ctype.h>
#include<string.h>
void arr(char a[])
{
    int i=0;
 while(a[i]!='\0')
   {
    if(islower(a[i]))
    {
        a[i]=toupper(a[i]);
    }i++;
   }
}
int aee(const char* str1, const char* str2)
{
    const char* s1 = NULL;
    const char* s2 = NULL;
    const char* cut = str1;
    int i = 0;
    while (*cut)
    {
        s1 = cut;
        s2 = str2;
        while ((*s1 == *s2) && *s1 != '\0' && *s2 != '\0')
        {
            s1++;
            s2++;
        }
        if (*s2 == '\0' )
        {
            return i;
        }
        cut++; i++;
    }
    return -1;
}
int main() {
   char a[100]={0};
   char b[10]="Bob";
   scanf("%s",a);
    arr(a);
    arr(b);
    printf("%d",aee(a,b));
    return 0;
}