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 <string>
#include <map>
#include <vector>
#include <algorithm>
#include <stdio.h>
#include <math.h>
#include <iomanip>
using namespace std;
int main(){
  int x,y,size,m[14][14]={0},max=0,none=0;
  while(scanf("%d,%d,%d",&x,&y,&size)!=EOF){
    if(size>=1){
      m[x+2][y+2]++;
      m[x+2][y+1]++;
      m[x+2][y+3]++;
      m[x+1][y+2]++;
      m[x+3][y+2]++;
    }
    if(size>=2){
      m[x+1][y+1]++;
      m[x+1][y+3]++;
      m[x+3][y+1]++;
      m[x+3][y+3]++;
    }
    if(size==3){
      m[x+2][y]++;
      m[x+2][y+4]++;
      m[x][y+2]++;
      m[x+4][y+2]++;
    }
    for(y=0;y<14;y++){
      for(x=0;x<14;x++){
	cout<<m[x][y];
	(x==13)?cout<<endl:cout<<" ";
      }
    }
  }
  for(y=0;y<10;y++){
    for(x=0;x<10;x++){
      if(m[x+2][y+2]>max)max=m[x+2][y+2];
      if(!m[x+2][y+2])none++;
    }
  }
  cout<<none<<endl<<max<<endl;
}

C++: #include <iostream>
#include <algorithm>
#include <cstdio>
#define MAX 30
using namespace std;


int main()
{
	int p[MAX][MAX];
	for (int i = 0; i < MAX; i++){
		for (int j = 0; j < MAX; j++){
			p[i][j] = 0;
		}
	}
	int x, y, size;
	while (scanf_s("%d,%d,%d", &x, &y, &size) != EOF){
		x += 10;
		y += 10;
		p[x][y]++;
		p[x - 1][y]++;
		p[x + 1][y]++;
		p[x][y - 1]++;
		p[x][y + 1]++;
		if (size == 1){
			continue;
		}
		p[x - 1][y - 1]++;
		p[x - 1][y + 1]++;
		p[x + 1][y - 1]++;
		p[x + 1][y + 1]++;
		if (size == 2){
			continue;
		}
		p[x - 2][y]++;
		p[x + 2][y]++;
		p[x][y - 2]++;
		p[x][y + 2]++;
	}
	int clean = 0, ink = 0;
	for (int i = 10; i < 20; i++){
		for (int j = 10; j < 20; j++){
			if (p[i][j] == 0){
				clean++;
			}
			ink = max(ink, p[i][j]);
		}
	}
	cout << clean << endl;
	cout << ink << endl;

	return 0;
}

C++: #include<cstdio>
#define MAX(x,y) ((x>y)? x:y)

int paper[14][14];
class ink {
public: 
	int x,y;
	ink(int X,int Y)
	{
		x=X,y=Y;
	}
};
class ink date_1[]={ink(-1,0),ink(0,-1),ink(1,0),ink(0,1),ink(0,0)};
class ink date_2[]={ink(-1,-1),ink(-1,0),ink(-1,1),ink(0,-1),ink(0,0),ink(0,1),ink(1,-1),ink(1,0),ink(1,1)};
class ink date_3[]={ink(-2,0),ink(0,-2),ink(2,0),ink(0,2),ink(-1,-1),ink(-1,0),ink(-1,1),ink(0,-1),ink(0,0),ink(0,1),ink(1,0),ink(1,1)};

void fail(int kind,int x,int y)
{
	if(kind==1)
	{
		for(int i=0;i<5;i++)
		{
			paper[x+date_1[i].x+2][y+date_1[i].y+2]++;
		}
	}
	if(kind==2)
	{
		for(int i=0;i<9;i++)
		{
			paper[x+date_2[i].x+2][y+date_2[i].y+2]++;
		}
	}
	if(kind==3)
	{
		for(int i=0;i<13;i++)
		{
			paper[x+date_3[i].x+2][y+date_3[i].y+2]++;
		}
	}
}

int main()
{
	int x,y,size;
	for(int i=2;i<12;i++)
	{
		for(int j=2;j<12;j++)
		{
			paper[i][j]=0;
		}
	}
	while(scanf("%d,%d,%d",&x,&y,&size)!=EOF)
	{
		if(x==-1)break;
		fail(size,x,y);
	}
	int white=0;
	int maxblack=0;
	for(int i=2;i<12;i++)
	{
		for(int j=2;j<12;j++)
		{
			if(paper[i][j]==0)white++;
			else maxblack=MAX(maxblack,paper[i][j]);
		}
	}
	printf("%d\n%d\n",white,maxblack);
    return 0;
}

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

int field[10][10], x, y, s, cnt, ma;

void s1()
{
    if (y - 1 >= 0) field[x][y-1]++;
    if (x - 1 >= 0) field[x-1][y]++;
    if (y + 1 < 10) field[x][y+1]++;
    if (x + 1 < 10) field[x+1][y]++;
}

void s2()
{
    s1();
    if (x - 1 >= 0 && y - 1 >= 0) field[x-1][y-1]++;
    if (x - 1 >= 0 && y + 1 < 10) field[x-1][y+1]++;
    if (x + 1 < 10 && y - 1 >= 0) field[x+1][y-1]++;
    if (x + 1 < 10 && y + 1 < 10) field[x+1][y+1]++;
}

void s3()
{
    s2();
    if (y - 2 >= 0) field[x][y-2]++;
    if (x - 2 >= 0) field[x-2][y]++;
    if (y + 2 < 10) field[x][y+2]++;
    if (x + 2 < 10) field[x+2][y]++;
}

int main()
{
    while(scanf("%d,%d,%d",&x,&y,&s) != EOF) {
        field[x][y]++;
        if      (s == 1) s1();
        else if (s == 2) s2();
        else if (s == 3) s3();
    }

    for(int i=0;i < 10;++i) {
        for(int j=0;j < 10;++j) {
            if (!field[i][j]) ++cnt;
            else ma = max(ma, field[i][j]);
        }
    }
    printf("%d\n%d\n", cnt, ma);

    return 0;
}

C++: #include <iostream>
#include <string>
#include <map>
#include <vector>
#include <algorithm>
#include <stdio.h>
#include <math.h>
#include <iomanip>
using namespace std;
int main(){
  int x,y,size,m[14][14]={0},max=0,none=0;
  while(scanf("%d,%d,%d",&x,&y,&size)!=EOF){
    if(size>=1){
      m[x+2][y+2]++;
      m[x+2][y+1]++;
      m[x+2][y+3]++;
      m[x+1][y+2]++;
      m[x+3][y+2]++;
    }
    if(size>=2){
      m[x+1][y+1]++;
      m[x+1][y+3]++;
      m[x+3][y+1]++;
      m[x+3][y+3]++;
    }
    if(size==3){
      m[x+2][y]++;
      m[x+2][y+4]++;
      m[x][y+2]++;
      m[x+4][y+2]++;
    }
  }
  for(y=0;y<10;y++){
    for(x=0;x<10;x++){
      if(m[x+2][y+2]>max)max=m[x+2][y+2];
      if(!m[x+2][y+2])none++;
    }
  }
  cout<<none<<endl<<max<<endl;
}