Improve by first character search

#include 
#include 
int fcFind(int n, char *txt, int m, char *pat)
{
  int i, j, k;
  int nmatch = 0;
  char *cp;
  cp = strchr(txt, pat[0]);
  while (cp) {
     i = cp - txt;
     k = i;
     for (j = 0; j < m && txt[k] == pat[j]; j++)
  k ++;
     if (j == m) {
  nmatch++;
  printf("%d \n", i);
  cp = strchr(txt + i + m, pat[0]);
     }
     else
  cp = strchr(txt + i + 1, pat[0]);
  }
  return(nmatch);
}
/* End of File */