Go: package main

import (
        "fmt"
)

var paper [10][10]int

func main() {
        var x, y, s int
        for {
                _, err := fmt.Scanf("%d,%d,%d", &x, &y, &s)
                if err != nil {
                        break
                }

                fill(x, y, s)
        }
        var d, z int
        for i := 0; i < 10; i++ {
                for j := 0; j < 10; j++ {
                        if paper[i][j] == 0 {
                                z += 1
                        }
                        if paper[i][j] > d {
                                d += 1
                        }
                }
        }
        fmt.Printf("%d\n%d\n", z, d)
}

func fill(x int, y int, s int) {
        paper[x][y] += 1
        if x > 0 {
                paper[x-1][y] += 1
        }
        if x < 9 {
                paper[x+1][y] += 1
        }
        if y > 0 {
                paper[x][y-1] += 1
        }
        if y < 9 {
                paper[x][y+1] += 1
        }

        if s >= 2 {
                if x > 0 && y > 0 {
                        paper[x-1][y-1] += 1
                }
                if x > 0 && y < 9 {
                        paper[x-1][y+1] += 1
                }
                if x < 9 && y > 0 {
                        paper[x+1][y-1] += 1
                }
                if x < 9 && y < 9 {
                        paper[x+1][y+1] += 1
                }
        }

        if s > 2 {
                if x > 1 {
                        paper[x-2][y] += 1
                }
                if x < 8 {
                        paper[x+2][y] += 1
                }
                if y > 1 {
                        paper[x][y-2] += 1
                }
                if y < 8 {
                        paper[x][y+2] += 1
                }
        }
}

C++: #include<iostream>
#include<stdlib.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() {
	char x[1], y[1], size[1]; char tem[5];
	int white = 0; int most_intense=0;
	while(cin>>tem) {
		x[0] = tem[0]; y[0] = tem[2]; size[0] = tem[4];
		drop_ink(atoi(x),atoi(y),atoi(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 ;
	return 0;
}

C++: #include<iostream>
#include<string>
int mem[14][14] = {}, i = 0, X[50], Y[50], S[50];
int main() {
	int x;
	char b;
	while (1) {
		int y, s;
		std::cin >>x>> b >> y >> b >> s;
		Y[i] = y, S[i] = s;
		X[i] = x;
		if (s == 0)
			break;
		i += 1;
	}
	for(int a=0;a<i;a+=1)
	if (S[a] == 1) {
		mem[X[a] + 2][Y[a] + 2] += 1;
		mem[X[a] + 1][Y[a] + 2] += 1;
		mem[X[a] + 3][Y[a] + 2] += 1;
		mem[X[a] + 2][Y[a] + 1] += 1;
		mem[X[a] + 2][Y[a] + 3] += 1;
	}
	else if (S[a] == 2) {
		mem[X[a] + 2][Y[a] + 2] += 1;
		mem[X[a] + 1][Y[a] + 2] += 1;
		mem[X[a] + 3][Y[a] + 2] += 1;
		mem[X[a] + 2][Y[a] + 1] += 1;
		mem[X[a] + 2][Y[a] + 3] += 1;
		mem[X[a] + 1][Y[a] + 1] += 1;
		mem[X[a] + 1][Y[a] + 3] += 1;
		mem[X[a] + 3][Y[a] + 1] += 1;
		mem[X[a] + 3][Y[a] + 3] += 1;
	}
	else if (S[a] == 3) {
		mem[X[a] + 2][Y[a] + 2] += 1;
		mem[X[a] + 1][Y[a] + 2] += 1;
		mem[X[a] + 3][Y[a] + 2] += 1;
		mem[X[a] + 2][Y[a] + 1] += 1;
		mem[X[a] + 2][Y[a] + 3] += 1;
		mem[X[a] + 1][Y[a] + 1] += 1;
		mem[X[a] + 1][Y[a] + 3] += 1;
		mem[X[a] + 3][Y[a] + 1] += 1;
		mem[X[a] + 3][Y[a] + 3] += 1;
		mem[X[a]][Y[a] + 2] += 1;
		mem[X[a] + 4][Y[a] + 2] += 1;
		mem[X[a]][Y[a] + 4] += 1;
		mem[X[a] + 4][Y[a] + 2] += 1;
	}
	int flag = 0, max = 0;
	for (int i = 0; i < 10; i += 1)
		for (int j = 0; j < 10; j += 1) {
			if (0 == mem[i + 2][j + 2])
				flag += 1;
			if (max < mem[i + 2][j + 2])
				max = mem[i + 2][j + 2];
		}
	std::cout << flag+1 << std::endl;
	std::cout << max << std::endl;
	return 0;
}

C++: #include "bits/stdc++.h"

using namespace std;

typedef vector<int> vi;
typedef pair<int,int> pii;
typedef long long ll;

#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define all(a)  (a).begin(),(a).end()
#define pb push_back

int fie[20][20]={};


void paint(int x,int y,int size){
    int dx[]={0,1,0,-1,0, 1,1,-1,-1, 2,0,-2,0};
    int dy[]={0,0,1,0,-1, 1,-1,1,-1, 0,2,0,-2};
    int n;
    if(size==1)n=5;
    else if(size==2)n=9;
    else if(size==3)n=13;
    
    rep(i,n){
        if( 0<=x+dx[i] && x+dx[i]<10  &&  0<=y+dy[i] && y+dy[i]<10 ){
            fie[ x+dx[i] ][ y+dy[i] ]++;
        }
    }
}



int main(){
    int x,y,size;
    char ch;
    while(cin>>x>>ch>>y>>ch>>size){
        paint(x,y,size);
    }
    
    int c=0;
    int maxi=-1;
    rep(i,10){
        rep(j,10){
            if(fie[i][j]==0)c++;
            maxi = max(maxi,fie[i][j]);
        }
    }
    cout<<c<<endl;
    cout<<maxi<<endl;
}

C++: #include<iostream>
#include<string>
#include<cstdio>
#include<algorithm>
#include<stack>
#include<queue>
#include<vector>
#include<cmath>
#include<utility>
#include<set>
#include<complex>
#define vi vector<int>
#define vvi vector<vector<int> >
#define ll long long int
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define ld long double
#define INF 1e9
#define EPS 0.0000000001
#define rep(i,n) for(int i=0;i<n;i++)
#define CC puts("-------ok--------");
#define all(in) in.begin(), in.end()
#define bv vector<bool>
using namespace std;
typedef pair<int, int>PA;
using namespace std;
#define MAX 1e7
int sx[] = {0,0,-1,1};
int sy[] = {1,-1,0,0};
int my[] = {0,0,1,1,1,-1,-1,-1};
int mx[] = {1,-1,0,1,-1,0,1,-1};
int lx[] = {0,0,0,0,1,1,1,2,-1,-1,-1,-2};
int ly[] = {1,-1,2,-2,0,1,-1,0,0,-1,1,0};
int  main(){
    
    vvi v(12,vi(12,0));
    vi x(100,0); vi y(100,0); vi ink(100,0);
    int i =0; char c,d;
    while(cin >> x[i] >>c>>y[i] >>d >> ink[i]){
        v[y[i]][x[i]]+=1;
        if(ink[i] == 1){
            rep(j,4){
                int tx =x[i]+sx[j]; int ty = y[i]+sy[j];
                if(0<=tx && tx<10 && 0<=ty && ty<10)
                    v[ty][tx]+=1;
            }
        }else if(ink[i] == 2){
            rep(j,8){
                int tx =x[i]+mx[j]; int ty = y[i]+my[j];
                if(0<=tx && tx<10 && 0<=ty && ty<10)
                    v[ty][tx]+=1;
                }
        }else if(ink[i] == 3){
                rep(j,12){
                    int tx =x[i]+lx[j]; int ty = y[i]+ly[j];
                    if(0<=tx && tx<10 && 0<=ty && ty<10)
                        v[ty][tx]+=1;
                }
        }
        i++;
    }
        int ans1 = -INF; int ans2 = 0;
        rep(i,10) rep(j,10){
            ans1 = max(ans1,v[i][j]);
            if(v[i][j]  == 0)
                ans2++;
        }
    cout << ans2<< endl;
    cout << ans1<< endl;
        
    return 0;