poj 3095 Linear Pachinko

#include <iostream>#include <cstring>#include <cstdio>using namespace std;int main(){    char str[100];    while(scanf("%s", str)&&str[0]!='#'){        int flag=1, ans=0, len=strlen(str), t=0, i;        for(i=0; i<len; i++){ switch(str[i]){     case '/':if(flag)ans+=100;flag=0;break;     case '\':t=100;break;     case '.':ans+=t+100;t=0;flag=1;break;     case '_':break;     case '|':if(flag)ans+=50;flag=0;t=50;break; }        }        printf("%dn", (ans+t)/len);    }    return 0;}