Maximum Profit

#include<stdio.h>

int main()
{
    int n;
    scanf("%d",&n);
    long long int profit = -99999999999, max = 999999999999;
    for(int i=0;i<n;i++){
        long long int x;
        scanf("%lld",&x);
        if(x-max > profit)
            profit = x-max;
        if(max > x)
            max = x;
    }
    printf("%lld\n",profit);
    return 0;
}