I am not able to find errors in this code, logic is true but giving syntax error. Plz help me to find errors.

//program to find first of all nonterminals for given grammer

#include<stdio.h>
char NT[10],s[10][10],T[10];
main(){

 int a,i,j,b;


 printf("Specify no.of terminals u enter:");
 scanf("%d",&a);

 for(i=0;i<a;i++)
 {
 printf("Enter terminal symbols:");
 scanf("%s",&T[i]);
 }

 printf("Enter no.of nonterminals u enter:");
 scanf("%d",&b);

 printf("Enter nonterminal symbols:");
 for(i=0;i<b;i++)
 scanf("%s",&NT[i]);

 for(i=0;i<b;i++)
 {
  printf("Enter production %d : ",i+1);
  for(j=0;s[i][j-1]!='#';j++)
   scanf("%s",&s[i][j]);
 }
 for(i=0;i<b;i++)
   rec(a,b,s,T,s[i][0]);
  }

rec(int a,int b,char s[][],char T[],char x)
{  int m,l;
  for(m=0;m<a;m++)
  {
   if(x==T[m])
   {
      printf("FIRST of %s : %s\n",x,T[m]);
   }
  }
   for(l=0;l<b;l++)
  {
      if(x==NT[l])
      rec(a,b,s,T,s[l][0]);
   }
}