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

void insertBeg(int myArr[], int input , int *length);
void display(int array[], int length);
int main(){
    int exit = 0;
    int input;
    int *myArr= (int *)malloc(sizeof(int));
    int length = 1;
    while(!exit){
        fflush(stdin);
        printf("Input : ");
        scanf("%d", &input);
        if(input == -1){
            exit = 1;
        }
        insertBeg(myArr, input, &length);
        display(myArr, length);
    }
    return 0;
}

void insertBeg(int myArr[], int input , int *length){
    myArr = (int *)realloc(myArr, (*length)) ;
    myArr[(*length)] = input;
    (*length)++;
}

void display(int array[], int length){
    int i;
    printf("Array ---- \n");
    for(i = length-1 ; i>0 ; i--){
        printf("%d ," , *(array + i));
    }
}