URI online judge:1175 solution in C

https://www.urionlinejudge.com.br/judge/en/problems/view/1175
#include<stdio.h>
int main()
{
    int N[20],i,j;

    for(i=19;i>=0;i--)
    {
        scanf("%d",&N[i]);
    }
    for(i=0;i<20;i++)
    {
        printf("N[%d] = %d\n",i,N[i]);
    }
    return 0;
}