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 <cstdio>

using namespace std;

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

void drop(int n, int m, int l)
{
    paper[n + 2][m + 2]++;
    if (l == 3)
    {
        paper[n + 2][m]++;
        paper[n + 2][m + 4]++;
        paper[n][m + 2]++;
        paper[n + 4][m + 2]++;
    }
    if (l == 2)
    {
        paper[n + 3][m + 1]++;
        paper[n + 3][m + 3]++;
        paper[n + 1][m + 1]++;
        paper[n + 1][m + 3]++;
    }
    paper[n + 2][m + 1]++;
    paper[n + 2][m + 3]++;
    paper[n + 1][m + 2]++;
    paper[n + 3][m + 2]++;
    return;
}

int n, m, l;

int main()
{
    int max = 0, zero = 0;
    while (scanf("%d,%d,%d\n", &n, &m, &l) != EOF)
    {
        scanf("%d,%d,%d\n", &n, &m, &l);
        drop(n, m, l);
        /* for (int i = 2; i < 12; i++)
        {
            for (int j = 2; j < 12; j++)
            {
                printf(" %d", paper[i][j]);
            }
            printf("\n");
        } */
        n--;
    }

    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 %d\n", zero, max);
    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;
}

C++: //インクを落とす
#include<cstdio>

using namespace std;

int main(){
	int pa[10][10];
	int i,j;	//ループカウンタ
	int x,y,size,da=0,not=-1;
	
	//二次元配列の初期化
	for(i=0;i<10;i++){
		for(j=0;j<10;j++)
			pa[i][j]=0;
	}

	while(scanf("%d,%d,%d",&x,&y,&size)!=EOF){
		switch(size){
			case 1:	//小
				pa[x][y]++;
				pa[x-1][y]++;
				pa[x+1][y]++;
				pa[x][y-1]++;
				pa[x][y+1]++;
				break;
			case 2:	//中
				for(i=-1;i<=1;i++){
					for(j=-1;j<=1;j++)
						pa[x+i][y+j]++;
				}
				break;
			case 3:	//大
				for(i=-1;i<=1;i++){
					for(j=-1;j<=1;j++)
						pa[x+i][y+j]++;
				}
				pa[x-2][y]++;
				pa[x+2][y]++;
				pa[x][y-2]++;
				pa[x][y+2]++;
				break;
		}
	}
	for(i=0;i<10;i++){
		for(j=0;j<10;j++){
			if(pa[i][j]==0)
				not++;
		}
	}
	for(i=0;i<10;i++){
		for(j=0;j<10;j++){
			if(pa[i][j]>da)
				da=pa[i][j];
		}
	}
	printf("%d\n%d\n",not,da);

	return 0;
}

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

int main(void){

	int map[10][10],ink,x,y,max=0,count=0;
	int dx[] = {0,0,-1,1,-1,-1,1,1,0,0,-2,2};
	int dy[] = {-1,1,0,0,-1,1,-1,1,-2,2,0,0};


	for(int i=0;i<10;i++){
		for(int j=0;j<10;j++){
			map[i][j]=0;
		}
	}
	
	
	while(scanf("%d,%d,%d",&x,&y,&ink)!=EOF){
		map[y][x]++;
		for(int i=0;i<ink*4;i++){
			int mx=x+dx[i];
			int my=y+dy[i];
			if(mx>=0 && mx<10 && my>=0 && my<10){
				map[my][mx]++;
			}
		}
	}
	
	
	for(int y=0;y<10;y++){
		for(int x=0;x<10;x++){
			if(map[y][x]==0){
				count++;
			}
			if(map[y][x]>max){
				max=map[y][x];
			}
		}
	}
	printf("%d\n%d\n",count,max);
}

C++: #include <iostream>
#include <algorithm>
#include <cctype>
#include <cstdio>
#include <math.h>
using namespace std;

int main(){
	int d[14][14]={0},x,y,t,m=0,z=0;
	while(scanf("%d,%d,%d",&x,&y,&t)!=EOF){
		switch(t){
			case 3:d[x][y+2]++;d[x+2][y]++;d[x+2][y+4]++;d[x+4][y+2]++;
			case 2:d[x+1][y+1]++;d[x+1][y+3]++;d[x+3][y+1]++;d[x+3][y+3]++;
			case 1:d[x+1][y+2]++;d[x+2][y+1]++;d[x+2][y+2]++;d[x+2][y+3]++;d[x+3][y+2]++;break;
		}
	}
	for(int i=0;i<100;i++){
		if(d[i/10+2][i%10+2]==0)z++;
		m=max(m,d[i/10+2][i%10+2]);
	}
	cout<<z<<endl<<m<<endl;
}