using System;
public class Program
{
public static void Main() {
int[] arr = new int[] {3, 8, 1, 9, 4, 10, 7, 13, 2, 6};
int size = arr.Length;
int N = 4;
int just_greater = int.MaxValue;
int just_smaller = int.MinValue;
for (int i = 0; i < size; i++) {
if (arr[i] > N && arr[i] < just_greater) {
just_greater = arr[i];
}
if (arr[i] < N && just_smaller < arr[i]) {
just_smaller = arr[i];
}
}
Console.WriteLine("just_smaller: " + just_smaller);
Console.WriteLine("N: " + N);
Console.WriteLine("just_greater: " + just_greater);
}
}
/*
run:
just_smaller: 3
N: 4
just_greater: 6
*/