C Programming - Print array of random numbers and sort in decreasing order

[alexexcl]

Hello I am trying to write a program in C. For the program I am trying to print an array of 10 random numbers (using function rand();) while set the srand(); seed to 5 (1,2,3,4,5). Then, I need to sort the 10 random numbers in the array into decreasing order and print the output. I am getting a incorrect output of random numbers and descending order and I do not know why. Can someone please let me know why or modify my code to print an array of 10 random numbers (using function rand();) while set the srand(); seed to 5 (1,2,3,4,5). Then, I need to sort the 10 random numbers in the array into decreasing order and print the output?


The output that I am getting when I compile and run the code is:
Initial random numbers: -2145088480
Descending: 966378722

The C code I have so far is:

#include <stdio.h>
#include <stdlib.h> 


int main()
{
	int arr[10]; //declare an array 'arr' of size 10 to hold integers
	
	int i,n,j,tmp; //declare the variable i to increment
	

	 srand(5); //Seed the random number generator to 5, as specified 'set 
            //the seed to be 12345'
		for (i = 0; i < 10; i++)
			{
			
				arr[i] = rand(); //Use the function rand() 
			}
		printf("Initial random numbers : %d ",arr[i]);
for (int i = 0; i < n; i++)                     //Loop for descending //ordering
{
	for (int j = 0; j < n; j++)             //Loop for comparing other values
	{
		if (arr[j] < arr[i])                //Comparing other array //elements
		{
			int tmp = arr[i];         //Using temporary variable //for storing last value
			arr[i] = arr[j];            //replacing value
			arr[j] = tmp;             //storing last value
		}
	}
}
printf("\n\nDescending : ");                    //Printing message
for (int i = 0; i < n; i++)                     //Loop for printing array //data after sorting
{
	printf(" %d ", arr[i]);                   //Printing data
}

	return 0;
}

[JLBorges]

#include <stdio.h>
#include <stdlib.h>

int main()
{
    const int N = 10 ;
    int arr[N]; //declare an array 'arr' of size 10 to hold integers

    srand(12345); // 'set the seed to be 12345'

    puts( "Initial random numbers: " ) ;
    int i, j ;
    for( i = 0; i < N ; ++i )
    {
        arr[i] = rand(); //Use the function rand()
        printf( "%d ", arr[i] ); 
    }
    puts("") ;

    //  sort the 10 random numbers in the array in decreasing order
    for( i = 0; i < N ; ++i )
    {
        for( j = i+1 ; j < N ; ++j ) // for each position after i
        {
            if( arr[j] > arr[i] ) // in descending order
            {
                const int tmp = arr[i];
                arr[i] = arr[j];
                arr[j] = tmp;
            }
        }
    }

    puts( "\nsorted in descending order: " ) ;
    for( i = 0; i < N ; ++i ) printf( "%d ", arr[i] );
    puts("") ;
}

[MikeyBoy]

To expand on JLBorges's fix:

At line 19, you weren't printing the contents of the array. You were printing the value of arr[10]. This is one element past the end of the array, so it's just printing whatever happened to be in memory, which is why you're getting a garbage value.