help with sorting program

i need to write a program that will generate 50000 random number from 1-10000 and then sort them using three different functions. Bubble Sort, Insertion Sort, and Selective Sort

here is the code i have right now. i pretty much have the foundation layed out .. i think at least. i just need to tweak it to get it to work properly

Code:

#include <iostream>
#include <ctime>
using namespace std;

void bubblesort (int temp, int size);

int main (){

const int size = 50000;
int temp[size];

for(int i =0; i<size; i++){
temp[i]=rand()%10000;
cout << temp[i] << endl;

bubblesort (temp, size);
cout << temp[i];

return 0;

}

}


void bubblesort (int a[], int n) {
   for (int i=1; i<n; i++)
      for (int j=0; j<n-1; j++)
         if (a[j]>a[j+1]);
        
}


void insertionsort (double list[], int arraysize){
    for (int i=1; i<array size; i++) {
        double currentelement = list[i];
        int k;
        for (k=i - 1; k>=0 && list[k]> currentelement; k--){
        }
        list [k + 1] = currentelement;
    }
}

void selectionsort(int list[], int arraysize){
    for(int i=0; i<arraysize; i++){
        int min=list[i], index=i;
        for(int j =i; j<arraysize; j++){
            if(list[j]>min){
                index=j;
                min=list[j];
            }
        }
        swap(&list[i], &list[index];
    }
}

How does it not work? Or are you just looking for improvement suggestions for code that works?

Code:

if (a[j]>a[j+1]);

Take a closer look of what this statement do... or does not do...

well the code doens't work, and i figured that all of my funcitons weren't fully correctly written. also i don't know how to implement them into my program to have them run