C++ code to convert nfa to dfa

I need it can help me pl z

Hello, i have a home work in converting this following code of DFA to an NFA ,can any body help me??
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this program reads from a file called "dfa" contains:
q0 q1 q2
0 1
q0
q1
q1 q0
q1 q2
q2 q2
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#include<iostream.h>
#include<fstream.h>
#include<stdio.h>
#include<string.h>


struct stt
{
char s[20];
}st;
stt a[50],del[50],seg[50],fs[50],tt[25][25];
int position(char [],stt [],int );
int main()
{

int delc,segc,fsc,ttc;
char q0[20];
int i=0,c=0,t=0;
char buf[50],bufer[100],path[20];
puts("Enter the File Path with its name");
gets(path);
fstream f;
f.open(path,ios::in);
while(f.eof!=NULL)
{
f.getline(bufer,100,'\n');
if(strcmp(bufer,"")==0) break;
i=0;int ta=0;
for(int x=0;bufer[x]!='\0';x++)
{
if (bufer[x]!=' ')
{
buf[ta]=bufer[x];
ta=ta++;
}
if ((bufer[x]==' ') || (bufer[x+1]=='\0'))
{
buf[ta]='\0';
strcpy(a[i].s,buf);
i++;
strcpy(buf,"");
ta=0;
}
}
if (c==0)
{
for(int k=0;k<=i-1;k++)
strcpy(del[k].s,a[k].s);
delc=i-1;
c=1;
}
else if (c==1)
{
for(int k=0;k<=i-1;k++)
strcpy(seg[k].s,a[k].s);
segc=i-1;
c=2;
}
else if (c==2)
{
strcpy(q0,a[i-1].s);
c=3;
}
else if (c==3)
{
for(int k=0;k<=i-1;k++)
strcpy(fs[k].s,a[k].s);
fsc=i-1;
c=4;
}
else if (c==4)
{
for(int k=0;k<=i-1;k++)
strcpy(tt[t][k].s,a[k].s);
ttc=i-1;
t=t+1;
}
}
printf("________\n");
int j;
for( j=0;j<=delc;j++)
printf("%s ",del[j].s);

printf("\n________\n");

for(j=0;j<=segc;j++)
printf("%s ",seg[j].s);

printf("\n________\n%s",q0);

printf("\n________\n");

for(j=0;j<=fsc;j++)
printf("%s ",fs[j].s);

printf("\n__***______\n");

for(i=0;i<t;i++)
{
for(j=0;j<=delc;j++)
printf("%s ",tt[i][j].s);
printf("\n");
}
f.close();

char w[50],cs[10];
strcpy(cs,q0);
puts("Enter the string w:");
gets(w);
int fl,z,ip,sp;
for( i=0;w[i]!='\0';i++)
{
fl=0;
j=0;
z=i;
while(fl==0)
{
buf[j]=w[z];
buf[++j]='\0';
for(int x=0;x<=segc&&fl==0;x++)
if (strcmp(buf,seg[x].s)==0)
{
fl=1;
// cout<<buf<<endl;
ip=position(buf,seg,segc);
sp=position(cs,del,delc);

if (strcmp(tt[sp][ip].s,"_")!=0)
strcpy(cs,(tt[sp][ip].s));

/////================================================== ========== P A T H ================================================
cout<<cs<<" ";
}
if (fl==0) z=z+1;

}
i=z;
strset(buf,NULL);
}
puts("current state is ");puts(cs);
puts("path is ");



//================================check acc/not

for(int d=0;d<=fsc;d++)
if(strcmp(fs[d].s,cs)==0)
cout<<"\nAccepted <Even>\n";
else
cout<<"\nRejected <odd>\n";
return 0;
}

int position(char x[50],stt array[50],int l )
{
int p,f=0;
for(int z=0;z<=l&&f==0;z++)
if (strcmp(x,array[z].s)==0)
{
p=z;
f=1;
}
return p;
}