12606 - Happy New Year

#include <stdio.h>

int arr[200001];
int main(){
    int N;
    scanf("%d", &N);
    int max = 0;
    int min = 1000000001;
    for(int i = 0; i < N + 1; i++){
        scanf("%d", &arr[i]);
        if(max < arr[i]) max = arr[i];
        if(min > arr[i]) min = arr[i];
    }

    int distance = 0;
    distance = 2*(max - min);
    printf("%d\n", distance);
    return 0;
}