Output is right, still does not pass the test.
package pl.codegym.task.task07.task0721;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Minimum i maksimum w tablicach
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int maksimum = 0;
int minimum = 0;
int[] liczby = new int[20];
for (int i = 0; i < 20; i++)
{
liczby[i] = Integer.parseInt(reader.readLine());
}
for (int i = 0; i < liczby.length; i++)
{
if (liczby[i] > maksimum)
{
maksimum = liczby[i];
}
}
for (int i = 0; i < liczby.length; i++)
{
if (liczby[i] < minimum)
{
minimum = liczby[i];
}
}
System.out.print(maksimum + " " + minimum);
}
}