Please help me I can't find my mistake

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

int main()
{
    int i,j,n,k,m;
    char a[6],temp[6],c;
    bool b[6],t,f=false;
    for(i=1;i<6;i++)
        b[i]=false;
    b[0]=true;
    t=true;
    cin>>n;
    cin.get(c);
    i=0;
    while(cin.get(c))
    {
        if(c==EOF)
            break;
        if(c=='\n')
        {
            t=true;
            n--;
            if(n==0)
                break;
            if(b[i])
                printf("YES\n");
            else
                printf("NO\n");
            for(i=1;i<6;i++)
                b[i]=false;
            b[0]=true;
            i=0;
            continue;
        }
        i=(i+1)%6;
        if(t)
        {
            a[i]=c;
            t=false;
            for(j=i-1;j>=i-6;j--)
            {
                if(b[(j+6)%6])
                {
                    k=j+1;
                    m=0;
                    t=true;
                    for(;k<=i;k++)
                        temp[m++]=a[(k+6)%6];
                    temp[m]='\0';
                    if( strcmp(temp,"in")==0 ||
                        strcmp(temp,"out")==0 ||
                        strcmp(temp,"one")==0 ||
                        strcmp(temp,"input")==0 ||
                        strcmp(temp,"puton")==0 ||
                        strcmp(temp,"output")==0)
                    {
                        b[i]=f=true;
                        break;
                    }
                }
            }
            if(!f)
                b[i]=false;
            f=false;
        }
    }
    if(b[i])
        printf("YES\n");
    else
        printf("NO\n");
    return 0;
}

Edited by author 09.02.2009 23:58