Go: package main

import "fmt"

func isOrdered(a []int) bool {
	if len(a) <= 1 {
		return true
	}
	for i := 0; i+1 < len(a); i++ {
		if a[i] > a[i+1] {
			return false
		}
	}
	return true
}

func main() {
	// ボールの数がせいぜい10個しかないので、全てのボールの落とし方を全探索することが可能
	// Bit全探索を行う。右から見てj番目のビットが立っているときには左側の筒、立っていない時は右側の筒にいれる物とする。
	// 全てのボールを落とし終わった後に、それぞれの筒で昇順に並んでいるか調べることにする。
	var t int
	fmt.Scan(&t)
	ans := make([]bool, t)
	for i := 0; i < t; i++ {
		balls := make([]int, 10)
		for i := range balls {
			fmt.Scan(&balls[i])
		}
		ans[i] = false
		for bits := 0; bits < (1 << uint(10)); bits++ {
			pipeB := make([]int, 0)
			pipeC := make([]int, 0)
			for j := 0; j < 10; j++ {
				if (bits & (1 << uint(j))) != 0 {
					pipeB = append(pipeB, balls[j])
				} else {
					pipeC = append(pipeC, balls[j])
				}
			}
			if isOrdered(pipeB) && isOrdered(pipeC) {
				// fmt.Printf("test case %d - OK pattern - pipeB %v, pipec %v\n", i, pipeB, pipeC)
				ans[i] = true
				break
			}
		}
	}
	for i := range ans {
		if ans[i] {
			fmt.Println("YES")
		} else {
			fmt.Println("NO")
		}
	}
}

C++: //C++14 (Clang 3.8.0)

#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <string>
#include <climits>
using namespace std;
typedef long long ll;
typedef pair<long long,long long> P;
int in[10];
bool dfs(int n,vector<int> l,vector<int> r){
  if(n==10)return true;
  if(l.size()==0 or in[n]>l[l.size()-1]) 
  {
    l.push_back(in[n]);
    return dfs(n+1,l,r);
  }
  if(r.size()==0 or in[n]>r[r.size()-1] ){
    r.push_back(in[n]);
    return dfs(n+1,l,r);
  }
  return false;
  }
int main(){
  int d;
  cin>>d;
  for(int dd=0;dd<d;dd++){
    for(int i=0;i<10;i++){
      cin>>in[i];
    }
    vector<int> l,r;
    if(dfs(0,l,r )) cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    
  
  }
  return 0;
}

C++: #include <iostream>
#include <stack>

using namespace std;

int main() {
	int A[10];
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < 10; j++)
			cin >> A[j];
		stack<int> B, C;
		string ans = "YES";
		for (int j = 0; j < 10; j++) {
			int k = A[j];
			if (B.empty() != true && C.empty() != true) {
				if (B.top() > k && C.top() > k) {
					ans = "NO";
					break;
				}
			}
			else if (B.empty() == true)
				B.push(k);
			else if (B.top() < k)
				B.push(k);
			else if (B.top() > k)
				C.push(k);
		}
		cout << ans << endl;
	}
	return 0;
}

C++: #include<stdio.h>

#include<string.h>

int a[13],vis[13],flag;

void dfs(int x,int l,int r)

{

    int i;

    if(x==11)return; 

    if(flag)return ;

    if(a[x]>l)dfs(x+1,a[x],r);

    else  if(a[x]>r)dfs(x+1,l,a[x]);

    else  {flag=1;return;}

  

}

int main()

{

int T,i,j,k;

scanf("%d",&T);

while(T--)

{

flag=0;

for(i=1;i<=10;i++)

scanf("%d",&a[i]);

memset(vis,0,sizeof(vis));

dfs(1,0,0);

if(flag)printf("NO\n");

else printf("YES\n");

}

return 0;

}

C++: #include <iostream>

using namespace std;

bool judge(int num){
	int i, n, q[2]={0,0};

	for (i=0; i<num; i++) {
		cin >> n;
		if (q[0]<n)
			q[0] = n;
		else if (q[1]<n)
			q[1] = n;
		else
			break;
	}

	if (i==num)
		return true;
	else
		return false;
}

int main(){
	int i, lines;

	cin >> lines;
	for (i=0; i<lines; i++) {
		if (judge(10))
			cout << "NO\n";
		else
			cout << "YES\n";
	}
	return 0;
}

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

int main() {
	int n, x;
	cin >> n;
	for (int lop = 0, a = 0, b = 0; lop < n; lop++) {
		bool f = true;
		for (int i = 0; i < 10; i++) {
			cin >> x;
			if (f) {
				if (a < x && b < x) {
					if (a < b) {
						b = x;
						continue;
					}
					a = x;
					continue;
				}
				if (a < x) {
					a = x;
					continue;
				}
				if (b < x) {
					b = x;
					continue;
				}
				f = false;
			}
		}
		if (f)
			cout << "YES\n";
		else
			cout << "NO\n";
		//cout << (f ? "YES\n" : "NO\n");
	}
	return 0;
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <functional>
#include <numeric>
#include <stack>
#include <map>
using namespace std;

#define FOR(i,a,b) for(long long int i=(a);i<(b);i++)
#define REP(i,n) for(long long int i=0;i<(n);i++)
#define ALL(s) (s).begin(),(s).end()

#define PI 3.14159265358479

typedef long long ll;

int n, k;
stack<int> sb, sc;
bool f = 1;

int main(){
	cin >> n;
	REP(i, n){
		REP(j, 10){
			cin >> k;
			if (sb.empty()){
				sb.push(k);
			}
			else if (sc.empty()){
				sc.push(k);
				if (sb.top() < sc.top()){
					k = sc.top();
					sc.push(sb.top());
					sb.push(k);
				}
			}
			else{
				if (sb.top() < k){
					sb.push(k);
				}
				else if (sc.top() < k){
					sc.push(k);
				}
				else{
					f = 0;
				}
			}
		}
		if (f){
			cout << "YES\n";
		}
		else{
			cout << "NO\n";
		}
		while (!sb.empty()){
			sb.pop();
		}
		while (!sc.empty()){
			sc.pop();
		}
		f = 1;
	}
}

C++: #include<iostream>
#include<cstdio>
#include<cstring>

using namespace std;

int a[10], b[10], c[10];
int N;
int top1 = -1, top2 = -1;

bool dfs(int i)
{
	if (i == 10)
		return true;
	if (a[i] > b[top1] || top1 == -1)
		b[++top1] = a[i];
	else if (a[i] > c[top2] || top2 == -1)
		c[++top2] = a[i];
	else return false;
	dfs(i + 1);
}

int main()
{
	scanf("%d", &N);
	while (N--)
	{
		for (int i = 0; i < 10; i++)
			scanf("%d", &a[i]);
		if (dfs(0))
			cout << "YES" << endl;
		else
			cout << "NO" << endl;
		memset(b, 0, sizeof(b));
		memset(c, 0, sizeof(c));
		top1 = top2 = -1;
	}
	return 0;
}

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


bool vis[15];
int a[15];

bool ok = false;


void dfs(int cnt, int last){
	if(ok){
		return;
	}
	if(cnt > 9)
		return;
	if(cnt <= 9){
		vector<int> ver;
		for (int i = 0; i < 10; i++){
			if(!vis[i]){
				ver.push_back(a[i]);
			}
		}
		bool flag = true;
		for (int i = 1; i < ver.size(); i++){
			if(ver[i] < ver[i - 1]){
				flag = false;
			}
		}
		if(flag){
			ok = true;
		}
		//return;
	}
	
	for (int i = cnt; i < 10; i++){
		if(a[i] > last){
			vis[i] = true;
			dfs(i + 1, a[i]);
			vis[i] = false;
		}
	}
	return;
}
 


int main(){
	int n;
	cin >> n;
	while(n--){
		ok = false;
		memset(a, 0, sizeof(a));
		memset(vis, false, sizeof(vis));
		for (int i = 0; i < 10; i++){
			cin >> a[i];
		}
		
		dfs(0, 0);
		if(ok){
			cout << "YES" << endl;
		}else cout << "NO" << endl; 
		
		
		
	}
	return 0;
}

C++: #include<cstdio>
#include<cstring>
#include<vector>
using namespace std;
int arr[15];
int m,n;
vector<int> x;
vector<int> y;
void binary(int p)
{
    int i=0;
    int flag=1;
    while(i<10)
    {
        if(p&flag)
            x.push_back(arr[i]);
        else
            y.push_back(arr[i]);
        flag=flag<<1;
        i++;
    }
}
int panduan()
{
    for(int j=1;j<x.size();j++)
    {
        if(x[j]<x[j-1])
          return 0;
    }
    for(int i=1;i<y.size();i++)
    {
        if(y[i]<y[i-1])
          return 0;
    }
    return 1;
}
int solve()
{
    for(int i=0;i<1024;i++)
    {
        x.clear();
        y.clear();
        binary(i);
        if(panduan())
            return 1;
    }
    return 0;
}
int main()
{
    int n;
    scanf("%d",&n);
    while(n--)
    {
        for(int i=0;i<10;i++)
            scanf("%d",&arr[i]);
        if(solve())
        {
            printf("YES\n");
        }
        else
        {
            printf("NO\n");
        }
    }
    return 0;
}