Assign int value reference to int array

#include <stdio.h>

void printarr(int *a[]);
void printarr_usingptr(int *a[]);

int *a[5]; 

main() {

    int i1=4,i2=3,i3=2,i4=1,i5=0; 
    int i;
    int j;
    a[0]=&i1; 
    a[1]=&i2;          
    a[2]=&i3;
    a[3]=&i4;
    a[4]=&i5;

    printarr(a);
    printarr_usingptr(a);
}

void printarr(int *a[]) {
     int j;
     printf("Address in array Value\n");
     for(j = 0;j < 5;j++) {
         printf("%16u       %16u           %d\n",a[j],a[j],a[j]); 
     }

}

void printarr_usingptr(int *a[]) {
    int j = 0;
    printf("using pointer\n");
    for( j=0;j<5;j++) {
        printf("value of elements   %d %16lu %16lu\n",**a,*a,a);
        a++;
    }

}

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Assign int value reference to int array : Array Int « Data Type « C / ANSI-C

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