Shuffling an array

Okey so before you start yelling at me, yes this is my homework.

What this code is supposed to do is shuffle an array, nonetheless every time I run it on a I get the same "shuffled" array (of course by inputting the same un-shuffled array) I thought the srand(time(NULL)); part was going to make sure of that. If that is not it I don’t know how to make it really shuffle it.

So to sum up I need to know why my code is shuffling the array the same way every time.

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


int main(){

    int n;
    int m;
    int tmp;
    int i;

    printf("Please input the number of elements in your array:\n"); 
    scanf("%d", &n);

    int baraja[n];
    int tempbaraja[n];
    for (int i = 0; i < (sizeof(baraja)/sizeof(baraja[0])); i ++){
        printf("Please input the %d element of your array:\n",i);
        scanf("%d",&baraja[i]);
    }
    printf("Unshuffled array:\n");
    for (i=0;i < n;i++) {
        printf(" %d \n",baraja[i]);
    }
    for (int i = 0; i < n; i ++){ 
        tempbaraja[i] = baraja[i];
    }
    for (int i = 0; i < n; i ++){ 
        srand(time(NULL));
        m = rand() % n; 
        if (tempbaraja[m] == baraja[m]){ 
            tmp = baraja[m];
            baraja[m] = baraja[i];
            baraja[i] = tmp;
        }else{
        }
    } 
    printf("Shuffled array:\n");
    for (i=0;i < n;i++) {
        printf(" %d \n",baraja[i]);
    }   
}