Go: package main

import (
	"bufio"
	"os"
	"strings"
	"strconv"
	"fmt"
)

func rangeCheck(x, y int) bool {
	if x >= 0 && x <= 9 && y >= 0 && y <= 9 {
		return true
	} else {
		return false
	}
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	paper := make([][]int, 10)
	for i := range paper {
		paper[i] = make([]int, 10)
		for j := range paper[i] {
			paper[i][j] = 0
		}
	}
	// fmt.Println(paper)
	for scanner.Scan() {
		infos := strings.Split(scanner.Text(), ",")
		x, _ := strconv.Atoi(infos[0])
		y, _ := strconv.Atoi(infos[1])
		s, _ := strconv.Atoi(infos[2])
		// fmt.Println(x, y, s)
		switch s {
		case 1:
			paper[x][y]++
			if rangeCheck(x, y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x, y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x-1, y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1, y) {
				paper[x+1][y]++
			}
			continue
		case 2:
			paper[x][y]++
			if rangeCheck(x-1, y-1) {
				paper[x-1][y-1]++
			}
			if rangeCheck(x, y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x+1, y-1) {
				paper[x+1][y-1]++
			}
			if rangeCheck(x-1, y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1, y) {
				paper[x+1][y]++
			}
			if rangeCheck(x-1, y+1) {
				paper[x-1][y+1]++
			}
			if rangeCheck(x, y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x+1, y+1) {
				paper[x+1][y+1]++
			}
			continue
		case 3:
			paper[x][y]++
			if rangeCheck(x-1,y-1) {
				paper[x-1][y-1]++
			}
			if rangeCheck(x,y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x+1,y-1) {
				paper[x+1][y-1]++
			}
			if rangeCheck(x-1,y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1,y) {
				paper[x+1][y]++
			}
			if rangeCheck(x-1,y+1) {
				paper[x-1][y+1]++
			}
			if rangeCheck(x,y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x+1,y+1) {
				paper[x+1][y+1]++
			}
			if rangeCheck(x,y-2) {
				paper[x][y-2]++
			}
			if rangeCheck(x-2,y) {
				paper[x-2][y]++
			}
			if rangeCheck(x+2,y) {
				paper[x+2][y]++
			}
			if rangeCheck(x,y+2) {
				paper[x][y+2]++
			}
			continue
		}
	}
	count := 0
	max := -1
	for i := range paper {
		for j := range paper[i] {
			if paper[i][j] == 0 {
				count++
			}
			if max >= paper[i][j] {
				max = max
			} else {
				max = paper[i][j]
			}
		}
	}
	fmt.Printf("%d\n%d\n", count, max)
}

C++: #include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
	vector<vector<int> > field(12, vector<int>(12, 0));
	int x,y,s;
	while(scanf("%d,%d,%d", &x, &y, &s)!=EOF){
		x++; y++;
		for(int i=-2; i<=2; i++){
			for(int j=-2; j<=2; j++){
				if(s==1 && abs(i)+abs(j)<=1){
					field[x+i][y+j]++;
				}
				if(s==2 && abs(i)<=1 && abs(j)<=1){
					field[x+i][y+j]++;
				}
				if(s==3 && abs(i)+abs(j)<=2){
					field[x+i][y+j]++;
				}
			}
		}
	}
	
	int white = 0;
	int deep = 0;
	for(int i=1; i<=10; i++){
		for(int j=1; j<=10; j++){
			deep = max(deep, field[i][j]);
			if(field[i][j] == 0 ) white++;
		}
	}
	cout << white << endl << deep << endl; 
    return 0;
}

C++: #include <iostream>
#include <string>
#include <algorithm>
#include <math.h>
#include <vector>
#include <set>

using namespace std;
typedef long long LL;
static const double EPS = 1e-9;

#define FOR(i,k,n) for (int i=(k); i<(int)(n); ++i)
#define REP(i,n) FOR(i,0,n) 

const static int dx[13] = {0,1,0,-1,0,1,-1,-1,1,2,0,-2,0};
const static int dy[13] = {0,0,1,0,-1,1,1,-1,-1,0,2,0,-2};
int main(void){  
  int date[14][14]={0};
  int x,y,s,c=0,m=0;
  
  while(scanf("%d,%d,%d",&x,&y,&s) != EOF)
    REP(i,4*s+1) date[x+2+dx[i]][y+2+dy[i]] += 1;

  FOR(i,2,12)
    FOR(j,2,12){
      if(date[i][j]==0) c++;
      m = max(date[i][j], m);
    }
  cout << c << endl;
  cout << m << endl;
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;

int paper[10][10] = { 0 };

void drop_ink(int x,int y,int size) {
	if (size == 1) {
		for (int i = 0; i < 3; i++) {
			if (x + i - 1 >= 0 && y >= 0) { paper[x + i - 1][y] += 1; }
		}
		for (int i = 0; i < 3; i++) {
			if (x >= 0 && y + i - 1 >= 0) {
				if (y + i - 1 != y) { paper[x][y + i - 1] += 1; }
			}
		}
	}
	else if (size == 2) {
		for (int i = 0; i < 3; i++) {
			if (x + 1 >= 0 && y - 1 + i >= 0) {
				paper[x + 1][y - 1 + i] += 1;
				}
			}
		for (int i = 0; i < 3; i++) {
			if (x >= 0 && y - 1 + i >= 0) {
				paper[x][y - 1 + i] += 1;
				}
			}
		for (int i = 0; i < 3; i++) {
			if (x - 1 >= 0 && y - 1 + i >= 0) {
				paper[x - 1][y - 1 + i] += 1;
				}
			}
	}
	else if (size == 3) {
		for (int i = 0; i < 3; i++) {
			if (x + 1 >= 0 && y - 1 + i >= 0) {
				paper[x + 1][y - 1 + i] += 1;
			}
		}
		for (int i = 0; i < 5; i++) {
			if (x >= 0 && y - 2 + i >= 0) {
				paper[x][y - 2 + i] += 1;
			}
		}
		for (int i = 0; i < 3; i++) {
			if (x - 1 >= 0 && y - 1 + i >= 0) {
				paper[x - 1][y - 1 + i] += 1;
			}
		}
		if (x + 2 >= 0 && y >= 0){paper[x + 2][y] += 1;}
		if (x - 2 >= 0 && y >= 0) { paper[x - 2][y] += 1; }
	}
}
int main() {
	int x, y, size; 
	int white = 0; int most_intense=0;
	while (scanf("%d,%d,%d", &x, &y, &size)!=EOF) {		
		drop_ink(x,y,size);
	}
	for (int i = 0; i < 10; i++) {
		for (int j = 0; j < 10; j++) {
			if (paper[j][i] == 0) { white += 1; }
			if (most_intense < paper[j][i]) { most_intense = paper[j][i]; }
		}
	}
	cout << white << endl << most_intense ;
}

C++: #include <iostream>
#include <cstdio>

using namespace std;

int paper[14][14] = {0};

void drop(int n, int m, int l)
{
    if ( l == 3 )
    {
        paper[n - 2][m]++;

        paper[n - 1][m - 1]++;
        paper[n - 1][m]++;
        paper[n - 1][m + 1]++;
        
        paper[n][m - 2]++;
        paper[n][m - 1]++;
        paper[n][m]++;
        paper[n][m + 1]++;
        paper[n][m + 2]++;

        paper[n + 1][m - 1]++;
        paper[n + 1][m]++;
        paper[n + 1][m + 1]++;

        paper[n + 2][m]++;

    }
    else if ( l == 2 )
    {
        paper[n - 1][m - 1]++;
        paper[n - 1][m]++;
        paper[n - 1][m + 1]++;
        
        paper[n][m - 1]++;
        paper[n][m]++;
        paper[n][m + 1]++;

        paper[n + 1][m - 1]++;
        paper[n + 1][m]++;
        paper[n + 1][m + 1]++;
    }
    else if( l == 1 )
    {
        paper[n - 1][m]++;

        paper[n][m - 1]++;
        paper[n][m]++;
        paper[n][m + 1]++;

        paper[n + 1][m]++;
    }
    
    return;
}

int n, m, l;

int main()
{
    while (scanf("%d,%d,%d\n", &n, &m, &l) != EOF)
    {

        n += 2;
        m += 2;
        drop(n, m, l);
   /*      printf( "%d %d %d\n", n, m, l );
 */
/* 
        for (int i = 2; i < 12; i++)
        {
            for (int j = 2; j < 12; j++)
            {
                printf(" %d", paper[i][j]);
            }
            printf("\n");
        } */
    }

    int zero = 0, max = 0;
    for (int i = 2; i < 12; i++)
    {
        for (int j = 2; j < 12; j++)
        {
            if (paper[i][j] == 0)
            {
                zero++;
            }
            else if (paper[i][j] > max)
            {
                max = paper[i][j];
            }
        }
    }
    printf("%d\n%d\n", zero, max );
    return 0;
}