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>
#include <string.h>
#include <math.h>

int main()
{
	int x,y,size;
	unsigned char arr[ 14 * 14 ];
	memset( arr, 0, 14 * 14 );
	while ( scanf("%d,%d,%d", &x, &y, &size ) != EOF ) {
		x+=2; y+=2;
		arr[ 14 * ( x - 1 ) + y ]++;
		arr[ 14 * x + y ]++;
		arr[ 14 * ( x + 1 ) + y ]++;
		arr[ 14 * x  + y - 1 ]++;
		arr[ 14 * x  + y + 1 ]++;
		if( size >= 2 ) {
			arr[ 14 * ( x - 1 ) + y - 1 ]++;
			arr[ 14 * ( x - 1 ) + y + 1 ]++;
			arr[ 14 * ( x + 1 ) + y - 1 ]++;
			arr[ 14 * ( x + 1 ) + y + 1 ]++;
		}
		if( size >= 3 ) {
			arr[ 14 * ( x - 2 ) + y  ]++;
			arr[ 14 * ( x + 2 ) + y  ]++;
			arr[ 14 * x + y - 2  ]++;
			arr[ 14 * x + y + 2  ]++;
		}
	}

	int cnt = 0;
	int maxv = 0;

	for( int i = 2; i < 12; i++ ) {
		for( int j = 2; j < 12; j++ ) {
			if( arr[ 14 * j + i ] == 0 ) {
				cnt++;
			}
			else if( maxv < arr[ 14 * j + i ] ) {
				maxv = arr[ 14 * j + i ] ;
			}
		}
	}

	printf("%d\n%d\n", cnt, maxv);
	
	return 0;
}

C++: #include <iostream>
#include <algorithm>
int main()
{		int x, y, n;
		char a, b;
	int a = 0;
	int s = 100;
	int xy[10][10] = {};
	while (std::cin >>x>> a >> y >> b >> n) {
		switch (n)
		{
		case 1: {
			if (x != 0) {
				++xy[x - 1][y];
			}
			++xy[x + 1][y];
			if (y != 0) {
				++xy[x][y - 1];
			}
			++xy[x][y + 1];
			break;
		}
		case 2: {
			if (x != 0) {
				++xy[x - 1][y];
				++xy[x - 1][y - 1];
				++xy[x - 1][y + 1];
			}
			if (y != 0) {
				++xy[x][y - 1];
				++xy[x + 1][y - 1];
			}
			++xy[x + 1][y];
			++xy[x][y + 1];
			++xy[x + 1][y + 1];
			break;
		}
		case 3: {
			if (x != 0) {
				++xy[x - 1][y];
				++xy[x - 1][y - 1];
				++xy[x - 1][y + 1];
			}
			if (y != 0) {
				++xy[x][y - 1];
				++xy[x + 1][y - 1];
			}
			++xy[x + 1][y];
			++xy[x][y + 1];
			++xy[x + 1][y + 1];
			if (x != 2) { ++xy[x - 2][y]; }
			++xy[x + 2][y];
			if (y != 2) {
				++xy[x][y - 2];
			}
			++xy[x][y + 2];
			break;
		}
		}
	}

	for (int i = 0; i < 10; ++i) {
		for (int j = 0; j < 10; ++j) {
			if (xy[i][j] > 0) {
				--s;
			}
		}
	}
	a = xy[0][0];
	for (int i = 0; i < 10; ++i) {
		for (int j = 0; j < 10; ++j) {
			if (a < xy[i][j]) {
				a = xy[i][j];
			}
		}
	}
	std::cout << s-1 << std::endl;
	std::cout << a << std::endl;
	return 0;
}

C++: #include<iostream>
using namespace std;
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,a) loop(i,0,a)
int main(){
	int map[11][11]={0};
	char c;
	int a,b,s;
	while(cin>>a>>c>>b>>c>>s){
		switch(s){
			case 3:
				map[a][b+2]++;
				map[a][b-2]++;
				map[a+2][b]++;
				map[a-2][b]++;
			case 2:
				map[a+1][b+1]++;
				map[a+1][b-1]++;
				map[a-1][b+1]++;
				map[a-1][b-1]++;
			case 1:
				map[a][b]++;
				map[a][b+1]++;
				map[a][b-1]++;
				map[a+1][b]++;
				map[a-1][b]++;
		}
	}
	
	int max=0;
	int count=0;
	rep(i,10){
		rep(j,10){
			if(max<map[i][j])max=map[i][j];
			if(0==map[i][j])count++;
		}
	}
	cout<<count<<endl;
	cout<<max<<endl;
	
}

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

int main() {
	int paper[14][14] = {0};
	int x,y,size;
	
	while ( scanf("%d,%d,%d",&x,&y,&size) != EOF ) {
		for ( int i = -2; i <= 2; i++ ) {
			for ( int j = -2; j <= 2; j++ ) {
				if ( i*i + j*j > 4 &&(  y != 0 ||  x != 0)){
					continue;
				}
				if ( size < 3 ) {
					if ( size < 2 && i*i + j*j > 1 ){
						continue;
					}
					if ( i * i > 1 || j * j > 1 ){
						continue;
					}
				}
				paper[x+2+i][y+2+j]++;
			}
		}
	}
	
	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++;
			if ( max < paper[i][j] )	max = paper[i][j];
		}
	}
	cout << zero << endl << max << endl;
	
	return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int data[15][15]={0};
int main(){
	
	int x,y,s;
	char c;
	while(scanf("%d,%d,%d",&x,&y,&s)!=EOF){
		
		while(1){
			data[x][y]++;
			if(y-1>=0)data[x][y-1]++;
			if(x+1<10)data[x+1][y]++;
			if(y+1<10)data[x][y+1]++;
			if(x-1>=0)data[x-1][y]++;
			if(s==1)break;
			if(x+1<10 && y+1<10)data[x+1][y+1]++;
			if(x+1<10 && y-1>=0)data[x+1][y-1]++;
			if(x-1>=0 && y-1>=0)data[x-1][y-1]++;
			if(x-1>=0 && y+1<10)data[x-1][y+1]++;
			if(s==2)break;
			if(x+2<10)data[x+2][y]++;
			if(y-2>=0)data[x][y-2]++;
			if(y+2<10)data[x][y+2]++;
			if(x-2>=0)data[x-2][y]++;
			break;
		}
		
	}
	int white=0,ma=0;
	for(int i=0;i<10;i++){
		for(int j=0;j<10;j++){
			if(data[i][j]==0)white++;
			ma=max(ma,data[i][j]);
		}
	}
	
	cout<<white<<" "<<ma<<endl;
}