C program to demonstrate pattern matching problem

#include <stdio.h>
#include<string.h>
#define N 50
void STRING_MATCH(char t[],char p[])
{
int tlen,plen,i,j,limit;
plen=strlen(p);
tlen=strlen(t);
limit=tlen-plen;
if(limit<0)
printf("Invalid input\n");
else
{
for(i=0;i<=limit;i++)
{
for(j=0;j<plen;j++)
{
if(p[j]!=t[i+j])
break;
}
if(j==plen)
break;
}
}
if(j==plen)
{
printf("pattern found and length of the pattern is %d\n",j);
printf("\nthe pattern is\n");
puts(p);

}
else
printf("Pattern not found\n");

}
main()
{
char p[N],t[N];
printf("Enter the text\n");
gets(t);

printf("Enter the pattern\n");
gets(p);

STRING_MATCH(t,p);
}