Thread: Memory allocation at run time

Can someone clarify what's memory allocation at run time ?

When I need to write a program I write it on editor and save it. when i compile/run program. compiler allocate memory. if there is error in code compiler show error. if there is no error then compiler show result

Code:

#include<stdio.h>#include<stdlib.h>
 
int main ()
{
  int *x = malloc(sizeof(*x)); // allocate dynamic memory for x
  *x = 1;  
  printf( "x = %d\n", *x);


  return 0;
   
}

In a program dynamic memory will allocate for pointer when i compile and run the code

What's term " Memory allocation at run time " in code development?