codevs 2761 脏话过滤

#include <iostream>
#include <string>
#include <cstdio>
using namespace std;

bool flag;

string str,a[9]={"38","250","2B","BT","TMD","PIG","SHIT","FUCK"};
int ln,k=-1,wz[9],len[9]={2,3,2,2,3,3,4,4};
bool vis[100+50];
void find_(int pos)
{
    int i=0;
    while(i<ln)
    {
        if(str[i]==a[pos][0])
        {
            int x=0;
            int z=i,k=i;
            while(str[k]==a[pos][x]&&k<ln)
            {k++;x++;}
            if(x==len[pos]) 
            {
                for(int j=z;j<=z+len[pos]-1;j++) vis[j]=1; 
                flag=1;
            }
        }
        i++;
    }
}
int main()
{
    cin>>str;
    ln=str.length();
    while(k<=6) find_(++k);
    for(int i=0;i<ln;i++) if(vis[i]) str[i]=‘*‘;
    cout<<str<<endl;
    flag==0?printf("YES"):printf("NO");
    return 0;
}