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Displaying  Source Code(s)  
 

 
Program to find an input substring in an input main string

--------------------------------------------------------------------------------



void main()
{

int i=0,j=0,k=0,count=0,l=0,k1=0;
char a[80],b[80];
clrscr();
printf("
Enter main string:-<BR>);
gets(a);
printf("
Enter sub-string:-<BR>);
gets(b);

l=strlen(b);
while (a[i]!=EOF)
{
if (a[i]==b[j])
{
i++;
j++;
k1=1;
if (j==l)
{
j=0;
k=1;
count=count+1;
}
}
else
{
if (k1==1)
{
j=0;
k1=0;
}
else
i++;
}
}

if (k==1)
{
printf("

The given sub-string is present in the main string.");
printf("
It is present %d times.",count);
}
else
{
if (k==0)
printf("

The given sub-string is not present in the main string.");
}
getch();
}
 

 

 

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