#include<stdio.h>
#include<string.h>
int main()
{
char gram[20],part1[20],part2[20],modifiedGram[20],newGram[20],tempGram[20];
int i,j=0,k=0,l=0,pos;
printf("Enter Production : A->");
gets(gram);
for(i=0;gram[i]!='|';i++,j++)
part1[j]=gram[i];
part1[j]='\0';
for(j=++i,i=0;gram[j]!='\0';j++,i++)
part2[i]=gram[j];
part2[i]='\0';
for(i=0;i<strlen(part1)||i<strlen(part2);i++){
if(part1[i]==part2[i]){
modifiedGram[k]=part1[i];
k++;
pos=i+1;
}
}
for(i=pos,j=0;part1[i]!='\0';i++,j++){
newGram[j]=part1[i];
}
newGram[j++]='|';
for(i=pos;part2[i]!='\0';i++,j++){
newGram[j]=part2[i];
}
modifiedGram[k]='X';
modifiedGram[++k]='\0';
newGram[j]='\0';
printf("\nGrammar Without Left Factoring : : \n");
printf(" A->%s",modifiedGram);
printf("\n X->%s\n",newGram);
}
Enter Production : A->bE+acF|bE+f
Grammar
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