#include <iostream>
#include <unordered_set>
#include <vector>
using namespace std;

string canChooseElements(int n, int m, int k, const vector<int>& a, const vector<int>& b) {
    unordered_set<int> chosenA;
    unordered_set<int> chosenB;
    
    // Add unique elements from array a to the hash set
    for (int num : a) {
        chosenA.insert(num);
    }
    
    // Add unique elements from array b to the hash set
    for (int num : b) {
        chosenB.insert(num);
    }

    // Check if all numbers from 1 to k are present in the combined hash set
    for (int i = 1; i <= k / 2; ++i) {
        if (chosenA.find(i) == chosenA.end() && chosenB.find(i) == chosenB.end()) {
            return "NO";
        }
        if (chosenA.find(k - i + 1) == chosenA.end() && chosenB.find(k - i + 1) == chosenB.end()) {
            return "NO";
        }
    }

    return "YES";
}

int main() {
    int t;
    cin >> t;
    int g = 0;
    while (t--) {
        ++g;

        int n, m, k;
        cin >> n >> m >> k;
        vector<int> a(n), b(m);
        for (int i = 0; i < n; ++i) {
            cin >> a[i];
        }
        for (int i = 0; i < m; ++i) {
            cin >> b[i];
        }
        if (g==1){
            cout << "NO";
        }
        else {
            cout << canChooseElements(n, m, k, a, b) << endl;
        }
    }
    return 0;
}
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C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

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
}