Go: package main

import (
	"bufio"
	"os"
	"strconv"
	"strings"
	"fmt"
)

var scanner = bufio.NewScanner(os.Stdin)
var (
	dat = [5000][5]int{}
	m = [5]int{}
)

func main() {
	for scanner.Scan() {
		for i := range dat {
			for j := range dat[i] {
				dat[i][j] = 0
			}
		}
		for i := range m {
			m[i] = 0
		}
		n, _ := strconv.Atoi(scanner.Text())
		if n == 0 {
			break
		}
		count := 0
		for i := 0; i < n; i++ {
			scanner.Scan()
			buf := strings.Split(scanner.Text(), " ")
			d, _ := strconv.Atoi(buf[0])
			p, _ := strconv.Atoi(buf[1])
			q, _ := strconv.Atoi(buf[2])
			q--
			count += p
			if d == 2 {
				for j := 0; j < p; j++ {
					dat[m[q]][q] = 1
					ok := true
					for k := 0; k < 5; k++ {
						if dat[m[q]][k] == 0 {
							ok = false
						}
					}
					if ok {
						for k := 0; k < 5; k++ {
							dat[m[q]][k] = 0
							for l := m[q]; l < 4999; l++ {
								dat[l][k] = dat[l+1][k]
							}
							for l := 4999; l >= 0; l-- {
								if dat[l][k] != 0 {
									m[k] = l+1
									break
								}
								if l == 0 {
									m[k] = 0
								}
							}
						}
						count -= 5
					} else {
						m[q]++
					}
				}
			} else {
				h := 0
				for i := 0; i < p; i++ {
					h = max(h, m[i+q])
				}
				for i := 0; i < p; i++ {
					dat[h][i+q] = 1
				}
				for i := 0; i < p; i++ {
					m[i+q] = h+1
				}
				ok := true
				for j := 0; j < 5; j++ {
					if dat[h][j] == 0 {
						ok = false
					}
				}
				if ok {
					for j := 0; j < 5; j++ {
						dat[h][j] = 0
						for k := h; k < 4999; k++ {
							dat[k][j]=dat[k+1][j]
						}
						for k := 4999; k>= 0; k-- {
							if dat[k][j] != 0 {
								m[j]=k+1
								break
							}
							if k == 0 {
								m[j] = 0
							}
						}
					}
					count -= 5
				}
			}
		}
		fmt.Println(count)
	}
}

func max(a, b int) int {
	if a < b {
		return b
	}
	return a
}

C++: #include <iostream>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <map>
#include <cmath>
#include <string>
#include <sstream>
#include <iomanip>
#include <complex>
using namespace std;

#define ll long long
#define vvi vector< vector<int> >
#define All(X) X.begin(),X.end()
#define FOR(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define REP(i,n) for(int i=0;i<(int)(n);i++)
#define pb push_back 
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
ll lcm(ll a,ll b){return a/gcd(a,b)*b;}

int grid[5][5010];
int n,d,p,q;
ll int ans = 0;

int GetBottom(int x){
	REP(i,5000){
		if(grid[x][i]==-1) return i;
	}
	return -1;
}

bool isallclear(int x){
	REP(i,5){
		if(grid[i][x]!=-1) return false;
	}
	return true;
}

bool isallblock(int x){
	REP(i,5){
		if(grid[i][x]!=1) return false;
	}
	return true;
}

int main(){
	while(1){
		cin >> n;
		REP(i,5) REP(j,5000) grid[i][j] = -1;
		REP(i,n){
			cin >> d >> p >> q;
			if(d==2){
				int tmp = GetBottom(q-1);
				FOR(j,tmp,tmp+p) grid[q-1][j] = 1;
			}else{
				int tmp = -1;
				FOR(j,q-1,q-1+p){
					tmp = max(tmp,GetBottom(j));
				}
				FOR(j,q-1,q-1+p) {
					grid[j][tmp] = 1;
					REP(k,tmp) if(grid[j][k]==-1) grid[j][k] = 0;
				}
			}
			int nowline = 0;
			while(1){
				if(isallclear(nowline)) break;
				if(isallblock(nowline)){
					REP(j,5) {
						//grid[j][nowline] = 0;
						int nline = nowline+1;
						while(1){
							if(grid[j][nline]==-1) {
								grid[j][nline-1] = grid[j][nline];
								break;
							}
							grid[j][nline-1] = grid[j][nline];
							nline++;
						}
					}
				}else{
					nowline++;
				}
			}
		}
		ans = 0;
		int line = 0;
		while(1){
			if(isallclear(line)) break;
			REP(i,5){
				if(grid[i][line]==1) ans++;
			}
			line++;
		}
		cout << ans << endl;

	}
	return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<queue>
#include<vector>
#include<map>
#include<list>

using namespace std;

#define int long long

list<bool*> fld;

list<bool*>::iterator GetHeight(int l, int r)
{
	list<bool*>::iterator itr = fld.begin();
	//fld.push_front((bool*)new bool[5]{});
	for (; itr != fld.end(); itr++)
	{
		for (int j = l; j < r; j++)
		{
			if ((*itr)[j] == true) return --itr;
		}
	}
	return --itr;
}

bool IsFull(list<bool*>::iterator itr)
{
	for (int i = 0; i < 5; i++)
	{
		if ((*itr)[i] == false) return false;
	}
	return true;
}

bool IsEmpty(list<bool*>::iterator itr)
{
	for (int i = 0; i < 5; i++)
	{
		if ((*itr)[i] == true) return false;
	}
	return true;
}

void Drop(int d, int p, int q)
{
	if (!IsEmpty(fld.begin())) fld.push_front((bool*)new bool[5]{});
	int l = q - 1, r = (d == 1) ? l + p : l + 1;
	list<bool*>::iterator itr = GetHeight(l, r);

	int h = (d == 1) ? 1 : p;
	for (int i = 0; i < h; i++)
	{
		if (itr == fld.begin()) fld.push_front((bool*)new bool[5]{});
		for (int j = l; j < r; j++)
		{
			(*itr)[j] = true;
		}
		if (IsFull(itr))
		{
			delete *itr;
			itr = fld.erase(itr);
		}
		itr--;
	}
}

signed main()
{
	int N;
	while (cin >> N, N)
	{
		fld.clear();
		fld.push_back((bool*)new bool[5]{});
		for (int i = 0; i < N; i++)
		{
			int d, p, q;
			cin >> d >> p >> q;
			Drop(d, p, q);
		}
		int ans = 0;
		for (list<bool*>::iterator itr = fld.begin(); itr != fld.end(); itr++)
		{
			for (int i = 0; i < 5; i++)
			{
				ans += ((*itr)[i] == true);
			}
		}
		printf("%lld\n", ans);
	}
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
const int LIMIT_HEIGHT = 5000;

int main()
{
  int n;
  bool grid[LIMIT_HEIGHT + 1][5];
  bool killed[LIMIT_HEIGHT + 1];

  while(cin >> n, n) {
    fill_n(*grid, (LIMIT_HEIGHT + 1) * 5, false);


    int d, p, q;
    while(n--) {
      cin >> d >> p >> q;
      --q;
      if(d == 1) { // 横向きのブロック
        for(int i = LIMIT_HEIGHT; i >= 0; i--) {
          bool flag = false;
          for(int j = 0; j < p; j++) {
            if(i == 0 || grid[i - 1][j + q]) {
              flag = true;
              for(int k = 0; k < p; k++) {
                grid[i][k + q] = true;
              }
              break;
            }
          }
          if(flag) break;
        }
        
      } else { // 縦向きのブロック
        for(int i = LIMIT_HEIGHT - p; i >= 0; i--) {
          if(i == 0 || grid[i - 1][q]) {
            for(int j = i; j < i + p; j++) {
              grid[j][q] = true;
            }
            break;
          }
        }
      }

      for(int i = 0; i < LIMIT_HEIGHT; i++) {
        bool flag = true;
        for(int j = 0; j < 5; j++) {
          flag &= grid[i][j];
        }
        killed[i] = flag;
      }
      int counter = 0;
      for(int i = 0; i < LIMIT_HEIGHT; i++) {
        while(i + counter < LIMIT_HEIGHT && killed[i + counter]) counter++;
     
        for(int j = 0; j < 5; j++) {
          if(i + counter >= LIMIT_HEIGHT) grid[i][j] = false;
          else grid[i][j] = grid[i + counter][j];
        }
      }
    }
    int ret = 0;
    for(int i = 0; i < LIMIT_HEIGHT; i++) {
      for(int j = 0; j < 5; j++) {
        ret += grid[i][j];
      }
    }
    cout << ret << endl;
  }
}