USACO Silver 2020 December - Cowntagion

Java

import java.io.*;
import java.util.*;

public class Cowntagion {
	@SuppressWarnings("unchecked")  // don't worry, i totally know what i'm doing
	public static void main(String[] args) throws IOException {
		BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
		int farmNum  = Integer.parseInt(read.readLine());
		List<Integer>[] neighbors = new ArrayList[farmNum];
		for (int f = 0; f < farmNum; f++) {

Python

from collections import deque


# straight from stackoverflow
def ceiLog2(x):  # returns the smallest n so that 2^n >= x
	return 1 if x == 0 else (x - 1).bit_length()


farmNum = int(input())
neighbors = [[] for _ in range(farmNum)]