pdslab/day2/cs1713-day2-prog1a.c

/*
 * Copyright (C) 2020, 2019, 2018, 2017 Girish M
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */
/*-----------------------------------
Name: Girish M
Roll number: cs1713
Date: 25 July 2017
Program description:Write a program to find the number of (possibly overlapping)
occurrences of the sequence B in A.
Acknowledgements:
------------------------------------*/
#include <stdio.h>

int main()
{
 int arr1[] = {1, 2, 2, 2, 2, 1,  2, 3, 3, 4, 3, 1, 2, 3, 1, 2, 3, 2, 1, 1};
 int arr2[] = {2, 2, 2};
 int i=0, j=0, k=0, match=0;
 while(j != 20)
 {
  if(arr1[k] == arr2[i])
  {
    i++;
    k++;
  }
  else
  {
    i=0;
  }
  if(i == 3)
  {
    match++;
    i=0;
  }
  k=j;
  j++;
 }
 printf("\nNo. of matches %d\n", match);
 return 0;
}