Java

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

public class ModernArt2 {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("art2.in"));
		PrintWriter out = new PrintWriter(new FileWriter("art2.out"));
		int N = Integer.parseInt(in.readLine());
		int[] start = new int[N + 1];
		int[] end = new int[N + 1];

C++

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#include <bits/stdc++.h>
using namespace std;

int main() {
	freopen("art2.in", "r", stdin);
	freopen("art2.out", "w", stdout);
	int n;
	cin >> n;
	vector<int> col(n + 1);
	vector<int> start(n + 1, INT32_MAX);