Prom Night - C++

#include <iostream>
using namespace std;

void CheckForPair(int b[], int g[], int m, int n)
{
  int i = 0, j = 0;
  
  while(i < m && j < n)
  {
    if(b[i] <= g[j])
    {
        cout << "No" << endl;
      	return;
    }
    
    ++i;
    ++j;
  }
  
  cout << "Yes" << endl;
}

int Partition(int a[], int low, int high)
{
  int pivot = a[low];
  int i = low;
  int j = high;
  
  while(i < j)
  {
    while(a[i] <= pivot && i <= high-1)
      ++i;
    
    while(a[j] > pivot && j >= low+1)
      --j;
      
    if(i < j)
      swap(a[i], a[j]);
  }
  
  swap(a[low], a[j]);
  return j;
}

void QuickSort(int a[], int low, int high)
{
  if(low < high)
  {
    int pivotIndex = Partition(a, low, high);
    
    QuickSort(a, low, pivotIndex-1);
    QuickSort(a, pivotIndex+1, high);
  }
}

int main() 
{
  int t;
  cin >> t;
  
  while(t--)
  {
    int m, n;
    cin >> m >> n;
    
    if(m > n)
    {
      cout << "No" << endl;
      continue;
    }
    
    int b[m], g[n];
    for(int i = 0; i < m; ++i)
      cin >> b[i];
    
    for(int i = 0; i < n; ++i)
      cin >> g[i];
    
    QuickSort(b, 0, m-1);
    QuickSort(g, 0, n-1);
  
    CheckForPair(b, g, m, n);
  }
  
  return 0;
}