Wow! Such Doge!---hdu4847（字符串水题）

#include<stdio.h>
#include<string.h>
#include<algorithm>
using namespace std;

const int N = 1100;

int main()
{
    int ans=0;
    char s[N];
    while(gets(s))
    {
        for(int i=0; s[i]; i++)
        {
            if(s[i]>=‘A‘ && s[i]<=‘Z‘)
                s[i]+=32;
        }
        int pos=0;
        while(strstr(s+pos, "doge")!=NULL)
        {
            ans ++;
            pos = strstr(s+pos,"doge")-s+4;
        }
    }
    printf("%d\n", ans);
    return 0;
}