Input
The first line contains 2 integers (should be separated by a comma) cols and rows which represent the number of lines and columns of the field, respectively. Each of the next rows lines contains exactly cols character '.' or '*' with spaces, representing the field. '.' for safe squares and '*' for mine squares, both without a quote.

Output
'.' characters if any, replaced by the number of mines ('*') adjacent to that cell.

#include<stdio.h>

int main(){
	
	//declaration
	int i;

	int j;
	int cols;			//number of columns
	int rows;			//number of rows

	int r;
	int ctr;			//counter

	printf("\n <cols,rows>: ");

	scanf("%i,%i", &cols, &rows);
	scanf("%*c");

	char mine[cols][rows];

	//input
	for(i = 0; i < rows; i++){
		printf(" <==\t");
		for(j = 0; j < cols; j++)
			scanf("%c%*c", &mine[i][j]);
	}

	//count adjacent mine(s)
	for(i = 0; i < rows; i++){
		for(j = 0; j < cols; j++){
			ctr = 0;
			if( mine[i][j] != '*' ){
				//check directly above cell
			  if ((i-1)>= 0 && mine[i-1][j] == '*')
				ctr ++;
				//check directly below cell
			  if ((i+1)< rows && mine[i+1][j] == '*')
				ctr ++;

			  //check left column
				r = j - 1;
			  if(r >= 0){
			    if(mine[i][r] == '*')
				ctr ++;
			    if ((i-1) >= 0 && mine[i-1][r] == '*') 
				ctr ++;
 			    if ((i+1)< rows && mine[i+1][r] == '*') 
				ctr ++;
			    }

			  //check right column
			  r = j + 1;
			  if(r < cols){
			    if(mine[i][r] == '*')
				ctr ++;
  			    if ((i-1) >= 0 && mine[i-1][r] == '*') 
				ctr ++;
			    if ((i+1)< rows && mine[i+1][r] == '*')
				ctr ++;
			    }
			    mine[i][j] = ctr;
			}
		}
	}

	//output
	for(i = 0; i < rows; i++){
		printf("\n ==>\t");
		for(j = 0; j < cols; j++){
			if (mine[i][j] == 42)
				printf("%c ", mine[i][j]);
			else
				printf("%i ", mine[i][j]);
		}
	}

	printf("\n\n");
	return 0;

}