7 Forecasting using Naive

#include <stdio.h>
int main()
{
    int n;
    printf("Enter the number of values\n");
    scanf("%d",&n);

    printf("Enter the %d years one by one \n",n);
    int year[n];
    for(int i=0 ; i<n ; i++){
        scanf("%d",&year[i]);
    }

    printf("Enter the sales for each year one by one \n");
    int sale[n];
    for(int i=0 ; i<n ; i++){
        scanf("%d",&sale[i]);
    }

    int forcast[n+1];
    forcast[0] = 0;

    for(int i=1 ; i<=n ; i++ ){
        forcast[i] = sale[i-1];
    }
    printf("\n|Year\tNOS\tForcasting|\n");
    for(int i=0 ; i<n ; i++){
        printf("|%d | \t %d | \t %d\n",year[i],sale[i],forcast[i]);
    }
    printf("|%d | \t NA | \t %d",year[n-1]+1,forcast[n]);

    return 0;
}