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How do you write a program to check the string of a given grammar?
Wiki User
∙ 13y ago
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char string[50];
int flag,count=o;
clrscr();
printf("The grammar is: S->aS, S->Sb, S->ab\n");
printf("Enter the string to be checked:\n");
gets(string);
if(string[0]=='a')
{
flag=0;
for(count=1;string[count-1]!='\0';count++)
{
if(string[count=='b'])
{
flag=1;
continue;
}
else if((flag==1)&&(string[count]=='a'))
{
printf("The string does not belong to the specified grammar");
break;
}
else if(string[count=='a'])
continue;
else if(flag==1)&&(string[count]='\0'))
{
printf("The string accepted");
break;
}
else
{
printf("String not accepted");
}
getch():
Wiki User
∙ 13y ago
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