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convention.java

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import java.io.*;

import java.util.*;

public class convention {

public static boolean check(int test,int M, int C, List<Integer> buses) {

int busStart=buses.get(0);

int busCount = 1;

int cowCount = 0;

for(int i = 0; i < buses.size(); i ++) {

if(busCount > M) {

return false;

}

int time = buses.get(i);

if(time - busStart > test || cowCount == C) {

busCount ++;

busStart = time;

cowCount = 0;

}

cowCount++;

}

return true;

}

public static void endProgram(int answer) throws IOException{

PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter("convention.out")));

pw.println(answer);

pw.close();

System.exit(0);

}

public static void main(String[] args) throws IOException{

BufferedReader f = new BufferedReader(new FileReader("convention1.in"));

StringTokenizer st = new StringTokenizer(f.readLine());

int N,M,C;

N = Integer.parseInt(st.nextToken());

M = Integer.parseInt(st.nextToken());

C = Integer.parseInt(st.nextToken());

st = new StringTokenizer(f.readLine());

f.close();

System.out.println(N+" "+M+" "+C);

List<Integer> arrivTime = new ArrayList<>();

for(int i = 0; i < N; i ++) {

arrivTime.add(Integer.parseInt(st.nextToken()));

}

arrivTime.sort(null);

// 123456789

int max = 1000000000;

int min = 0;

while(true) {

int mid = (int) Math.floor((min + max)/2);

if(check(mid,M,C,arrivTime)) {

max = mid;

}else {

min = mid;

}

System.out.println(min+" "+mid+" "+max);

}

class Cow implements Comparator<Cow>{

int id;

int aTime;

public Cow(int id, int aTime) {

this.id = id;

this.aTime = aTime;

}

@Override

public int compare(Cow arg0, Cow arg1) {

// TODO Auto-generated method stub

return Integer.compare(arg0.aTime, arg1.aTime);

}

class PriorityElem implements Comparator<PriorityElem>, Comparable<PriorityElem>{

public int multiplier = 1;

public int priority;

public int item;

public PriorityElem(int item, int priority) {

this.item = item;

this.priority = priority;

}

@Override

public int compare(PriorityElem arg0, PriorityElem arg1) {

// TODO Auto-generated method stub

return Integer.compare(arg0.priority, arg1.priority);

}

@Override

public int compareTo(PriorityElem arg0) {

return this.compare(this, arg0);

}