chubarich

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.LinkedHashSet;
import java.io.BufferedWriter;
import java.io.OutputStreamWriter;

chubarich

import java.io.*;

public class Subsequence {

    private static final BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(System.out));

    public static void main(String[] args) throws IOException {
        String small;
        String big;
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {

chubarich

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

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General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

chubarich

import android.content.Context;
import android.content.res.TypedArray;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.annotation.IntDef;
import android.support.annotation.NonNull;
import android.support.annotation.RestrictTo;
import android.support.annotation.VisibleForTesting;
import android.support.design.widget.CoordinatorLayout;
import android.support.v4.os.ParcelableCompat;

chubarich

public class RoutePreviewFragment extends BaseFragment {

    private static final String ROUTE_KEY = "route_key";

    @InjectPresenter
    RoutesPresenter presenter;

    @BindView(R.id.time) TextView routeTime;
    @BindView(R.id.distance) TextView routeDistance;
    @BindView(R.id.route_type) TextView routeType;

chubarich

import java.io.File;
import java.io.FileNotFoundException;
import java.sql.*;
import java.util.Scanner;


public class Main {
    public static void main(String[] args) throws ClassNotFoundException, SQLException, FileNotFoundException {
        Class.forName("org.sqlite.JDBC");

chubarich

static String gameOfThrones(String s){
    // Complete this function
    final String yes = "YES";
    final String no = "NO";
    char[] chars = s.toCharArray();
    Map<Character, Character> items = new HashMap<>();
    for (Character c : chars) {
        if (!items.containsKey(c)) {
            items.put(c, c);
        } else {