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<stdio.h>

int main()
{
	int x,y,size;
	int a[10][10]={0};
	while(scanf("%d,%d,%d",&x,&y,&size)!=EOF)
	{
		if(x>=10||x<0||y>=10||y<0)
		{
		}
		else
		{
			if(size==1)
			{
				a[x][y]++;
				a[x][y+1]++;
				a[x][y-1]++;
				a[x+1][y]++;
				a[x-1][y]++;
			}
			else if(size==2)
			{
				int n,m;
				n=x-1;
				for(n;n<=x+1;n++)
				{
					m=y-1;
					for(m;m<=y+1;m++)
					{
						a[n][m]++;
					}
				}
			}
			else if(size==3)
			{
				int n,m;

				a[x][y+2]++;
				a[x][y-2]++;
				a[x+2][y]++;
				a[x-2][y]++;

				n=x-1;
				for(n;n<=x+1;n++)
				{
					m=y-1;
					for(m;m<=y+1;m++)
					{
						a[n][m]++;
					}
				}
			}
		}
	}

	int zero=0,max=0;
	for(x=0;x<10;x++)
	{
		for(y=0;y<10;y++)
		{
			if(a[x][y]==0)
			{
				zero++;
			}
			if(a[x][y]>max)
			{
				max=a[x][y];
			}
		}
	}
	printf("%d\n%d\n",zero,max);
	return 0;
}

C++: #include <iostream>

#define SIZE 10

using namespace std;

int map[SIZE][SIZE] = {0};

void drop(int x, int y) {
	if (0 <= x && x < SIZE && 0 <= y && y < SIZE) {
		map[x][y]++;
	}
}

int main() {
	int x, y, s, count = 0, most = 0;
	char e;
	while (cin>>x>>e>>y>>e>>s) {
		drop(x, y);
		drop(x, y + 1);
		drop(x + 1, y);
		drop(x, y - 1);
		drop(x - 1, y);

		if (s > 1) {
			drop(x + 1, y + 1);
			drop(x + 1, y - 1);
			drop(x - 1, y - 1);
			drop(x - 1, y + 1);
		}

		if (s > 2) {
			drop(x, y + 2);
			drop(x, y - 2);
			drop(x + 2, y);
			drop(x - 2, y);
		}
	}

	for (int i = 0; i < SIZE; i++) {
		for (int j = 0; j < SIZE; j++) {
			if (map[i][j] > most) {
				most = map[i][j];
			}

			if (map[i][j] == 0) {
				count++;
			}
		}
	}

	cout << count << endl << most << endl;
	return 0;
}

C++: #include "bits/stdc++.h"
#include<unordered_map>
#pragma warning(disable:4996)
using namespace std;

struct ToUpper {
	char operator()(char c) { return toupper(c); }
};

int num[20][20];

int main() {
	memset(num, 0, sizeof(num));
	string st;
	while (getline(cin, st)) {
		int x = st[0] - '0';
		int y = st[2] - '0';
		x += 5;
		y += 5;
		int size = st[4] - '0';

		for (int i = 0; i < 20; ++i) {
			for (int j = 0; j < 20; ++j) {
				if (size == 1) {
					int lim = 1;
					int sa = abs(i - y) + abs(j - x);
					if (sa < size)num[i][j]++;
				}
				else if (size == 3) {
					int lim = 2;
					int sa = abs(i - y) + abs(j - x);
					if (sa < size)num[i][j]++;
				}
				else {
					if (abs(i - y) <= 1 && abs(j - x) <= 1)num[i][j]++;
				}
				
			}
		}
	}
	int a = 0;
	int b = 0;
	for (int i = 5; i < 15; ++i) {
		for (int j = 5; j < 15; ++j) {
			if (!num[i][j])a++;
			b = max(b, num[i][j]);
		}
	}
	cout << a <<endl<< b << endl;
	return 0;
}

C++: #include<iostream>

int data[10][10];

int main(){
	int count=0,max=0;
	int x,y,size;
	char c;
	while(std::cin>>x>>c>>y>>c>>size){
		if(size==1){
			data[y-1][x]++;
			data[y][x]++;data[y][x-1]++;data[y][x+1]++;
			data[y+1][x]++;
		}else if(size==2){
			data[y-1][x]++;data[y-1][x-1]++;data[y-1][x+1]++;
			data[y][x]++;data[y][x-1]++;data[y][x+1]++;
			data[y+1][x]++;data[y+1][x-1]++;data[y+1][x+1]++;
		}else if(size==3){
			data[y-1][x]++;data[y-1][x-1]++;data[y-1][x+1]++;
			data[y][x]++;data[y][x-1]++;data[y][x+1]++;data[y][x-2]++;data[y][x+2]++;
			data[y+1][x]++;data[y+1][x-1]++;data[y+1][x+1]++;
			data[y-2][x]++;data[y+2][x]++;
		}
	}
	for(int i=0;i<10;i++){
		for(int j=0;j<10;j++){
			max=std::max(max,data[i][j]);
			if(data[i][j]==0)count++;
		}
	}
	std::cout<<count<<std::endl;
	std::cout<<max<<std::endl;
	return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <vector>
#include <list>
#include <algorithm>
#include <cmath>
#include <stack>
#include <set>
using namespace std;

#define REP(i,n) for(int (i)=0; (i)<(n); (i)++)
#define FOR(i,a,b) for(int (i)=(a); (i)<(b); (i)++)
#define PUSH(n,v) for(int i=0; i<(n); i++) {int j; cin >> j; v.push_back(j);}
#define ALL(v) v.begin(), v.end()

vector<vector<int>> vv;

void ink(int x, int y) {
    if (x >= 0 && x < 10 && y >= 0 && y < 10) {
        vv[x][y]++;
    }
}

void big(int x, int y) {
    ink(x-2,y);
    ink(x-1,y);
    ink(x,y);
    ink(x+1,y);
    ink(x+2,y);
    ink(x-1,y-1);
    ink(x,y-1);
    ink(x+1,y-1);
    ink(x-1,y+1);
    ink(x,y+1);
    ink(x+1,y+1);
    ink(x,y-2);
    ink(x,y+2);
}

void mid(int x, int y) {
    ink(x-1,y);
    ink(x,y);
    ink(x+1,y);
    ink(x-1,y-1);
    ink(x,y-1);
    ink(x+1,y-1);
    ink(x-1,y+1);
    ink(x,y+1);
    ink(x+1,y+1);
}

void small(int x, int y) {
    ink(x-1,y);
    ink(x,y);
    ink(x+1,y);
    ink(x,y-1);
    ink(x,y+1);
}

int countBlank() {
    int cnt = 0;
    REP(i,10) REP(j,10) if (vv[i][j] == 0) cnt++;
    return cnt;
}

int getThickest() {
    int t = 0;
    REP(i,10) REP(j,10) if (vv[i][j] > t) t = vv[i][j];
    return t;
}

int main() {
    REP(i,10) {
        vector<int> v(10,0);
        vv.push_back(v);
    }
    
    int x, y, s;
    while(scanf("%d,%d,%d", &x, &y, &s)) {
        switch (s) {
            case 1:
                small(x,y);
                break;
            case 2:
                mid(x,y);
                break;
            case 3:
                big(x,y);
                break;
                
            default:
                break;
        }
    }
    
    cout << countBlank() << endl << getThickest() << endl;
    
    return 0;
}