// overhead                 !!!!!! DONE !!!!!!!
#include <iostream.h>
#include <fstream.h>
#include <string.h>

char A[100][100];
int w, h;

void erase (int x, int y, char c)
{
	A[x][y] = '0';
	if (x-1 >= 0 && A[x-1][y] != '0') erase(x-1, y, c);
	if (y+1 < h && A[x][y+1] != '0') erase(x, y+1, c);
	if (x+1 < w && A[x+1][y] != '0') erase(x+1, y, c);
	if (y-1 >= 0 && A[x][y-1] != '0') erase(x, y-1, c);
}

void main()
{
	memset(A, '0', sizeof(A) );

   ofstream out;
   out.open("mission.out");

	ifstream in;
	in.open("mission.in");

   while (1)
   {
	 in >> w >> h;  // width / height

    if (w < 0 || h < 0) break;

	 char temp[10];
	 in.getline(temp, 10); // skip

	 for (int i=0; i < h; i++)
	 {
		char inp[200];
		in.getline(inp, 200);
		for (int j=0; j < strlen(inp); j++)
 	       A[j][i] = inp[j];
	 }


	 int cnt = 0;

	 // scan for colour
	 for (i=0; i < h; i++)
	  for (int j=0; j < w; j++)
		if (A[j][i] != '0') {cnt++; erase(j, i, A[j][i]);};

	 out << cnt << endl;
   }

   out.close();
   in.close();

}
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006~ASP 0159~Buffering Off~Buffering must be on.