UP! Can someone explain why it happened?

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Lift {
    public static final float LIFT_DELAY = 15;
    public static final float PETYA_DELAY = 5;

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

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(reader.readLine());

        float petyaFloor = Float.parseFloat(st.nextToken());
        float liftFloor = Float.parseFloat(st.nextToken());

        float petyaSpeed = Float.parseFloat(st.nextToken());
        float liftSpeed = Float.parseFloat(st.nextToken());

        float timeByFootToTheFirstFloor = ((petyaFloor - 1) * petyaSpeed); //время, если идти до 1го этажа пешком
        float firstLiftDescentTime = ((liftFloor - 1) * liftSpeed) + LIFT_DELAY; //время, затраченное лифтом при спуске и простое на 1м этаже

        Float numOfFloorToGoByFoot = firstLiftDescentTime / petyaSpeed; //количество этажей, которые может успеть пройти Петя за время спуска лифта

        int numOfFloors = numOfFloorToGoByFoot.intValue(); //см. предыдущее

        Float numOfSeekingFloor = petyaFloor - numOfFloors; //искомый этаж

        float timeLiftWithPetya = (((numOfSearchingFloor - 1) * liftSpeed) * 2) + firstLiftDescentTime + PETYA_DELAY; //время на спуск, подъём к Пете на новый этаж и спуск с ним до 1го этажа

        if (timeByFootToTheFirstFloor < timeLiftWithPetya) {
            System.out.println("1");
        } else if (timeByFootToTheFirstFloor == timeLiftWithPetya) {
            String s = numOfSearchingFloor.longValue() + "";
            System.out.println(s);
        } else {
            String s = numOfSearchingFloor.longValue() + "";
            System.out.println(s);
        }
    }
}

For some tasks, they had a bigger time limit before, but after it changed, old solutions might have not been rejudged for whatever reasons.

what is EOL, EOF symbols???????

check whether you output EOF. If you output it you will get WA. I got
really angry when I understood that my program didn't work, because I
print EOF!!!!

thnx man .. that should help

5 years later, same trap grabbing me :(

В администрации есть кто живой?

Nevermind, this test case helped me find my mistake: "ababbaa"

Edited by author 06.05.2016 18:42

result = str(arr[i]) + result

Run this code 1M iterations locally.

Seriously?
Are you really think that you are the first who do it for O(N^2) with the same idea? And it's not the first topic in the forum about this algo.

I don't know why but I get a TLE in #15 with the same approach as yours.