How to sort C++ array in ASC and DESC mode?

Question

I have this array:

array[0] = 18;
array[1] = -10;
array[2] = 2;
array[3] = 4;
array[4] = 6;
array[5] = -12;
array[6] = -8;
array[7] = -6;
array[8] = 4;
array[9] = 13;

how do I sort the array in asc/desc mode in C++?

Answer 1

To sort an array in ascending, use:

#include <algorithm>

int main()
{
   // ...
   std::sort(array, array+n); // where n is the number of elements you want to sort
}

To sort it in descending, use

#include <algorithm>
#include <functional>  

int main()
{
   // ...
   std::sort(array, array+n, std::greater<int>());
}

Answer 2

You can pass custom comparison functor to the std::sort function.