#include <iostream>
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

typedef pair<ll, ll> PII;
typedef vector<ll> VI;
typedef vector<string> VS;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef map<ll,ll> MPII;
typedef set<ll> SETI;
typedef multiset<ll> MSETI;
#define MP make_pair
#define PB push_back
#define INF (int)1e9

ll mod=1000000007;
// vector<int,int> fact(2 * 1e5 + 1);
ll MOD = 998244353;


ll power(ll a,ll b,ll mod){
    if(b == 0){
        return 1;
    }
    ll ans = power(a,b/2,mod);
    ans *= ans;
    ans %= mod;
    if(b % 2){
        ans *= a;
    }
    return ans % mod;
}

ll ncr(ll n,ll r)
{
    vector<vector<ll>>c(5001,vector<ll>(5001,0));
    for(int i=1;i<=5000;i++)
    {
        c[i][0]=1;
        
    }
    c[1][1]=1;
    for(int i=1;i<=5000;i++)
    {
        for(int j=1;j<=i && j<=5000;j++)
        {
            if(i==1 && j==1)continue;
            else
            {
                c[i][j]=(c[i-1][j-1]+c[i-1][j])%mod;
            }
        }
    }
    return c[n][r];
    
}


//prime factor in log(N) using seive -->loglog(n);
vector<ll> primefact(ll n)
{
    vector<ll>arr(100001);
    for(int i=0;i<100001;i++)arr[i]=i;
    for(int i=2;i*i<100001;i++)
    {
        if(arr[i]==i)
        {
            for(int j=i*i;j<100001;j+=i)
            {
                if(arr[j]==j)
                {
                    arr[j]=i;
                }
            }
        }
    }
    //seive will be ready in loglog(n);
    //now our seive is rready we now nedd too log(n) operatoin to find the all fromt factor
    vector<ll>ans;
    while(n>1)
    {
        ans.push_back(arr[n]);
        n=n/arr[n];
    }
    return ans;
    
    
    
    
    
    
}

//all prime factor 
//all factor in sqrt(n)
// {
    
//     vector<pair<ll,ll>>v;
//     for(ll i=2;i*i<=n;i++)
//     {
//         ll cnt=0;
//         while(n%i==0)
//         {
//             cnt++;
//             n=n/i;
//         }
//         if(cnt>0)
//         {
//             v.push_back({cnt,i});
//             cnt=0;
//         }
        
//     }
//     if(n>0)v.push_back({1,n});
// }



// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------


void solve()
{
  ll n;
  cin>>n;
  VI a(n+1);
  VI vis(n+1,0);
  for(int i=1;i<=n;i++)
  {
    cin>>a[i];
    vis[a[i]]=i;
  }
  ll end=n;
  ll start=1;
  for(int i=n;i>0;i--)
  {
      start=vis[i];
      if(start<end)
      {
        for(int j=start;j<=end;j++)
        {
          cout<<a[j]<<" ";
        }
        
        end=start;
      }
    
    
  }
  cout<<"\n";
  
  
   
   
   
}




int main() {
	// your code goes here
	ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll t;
    cin>>t;
    while(t--)
    {
        solve();
    }
    
    // solve();

    
	return 0;
}
 
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Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
} 

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
} 

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}  

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition); 

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}