adventofcode/src/main/java/AoC2017_04.java at main · pareronia/adventofcode · GitHub

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import java.util.Arrays;

import java.util.List;

import java.util.function.Predicate;

import com.github.pareronia.aoc.Counter;

import com.github.pareronia.aoc.Utils;

import com.github.pareronia.aoc.solution.Sample;

import com.github.pareronia.aoc.solution.Samples;

import com.github.pareronia.aoc.solution.SolutionBase;

public final class AoC2017_04

extends SolutionBase<List<String>, Integer, Integer> {

private AoC2017_04(final boolean debug) {

super(debug);

}

public static AoC2017_04 create() {

return new AoC2017_04(false);

}

public static AoC2017_04 createDebug() {

return new AoC2017_04(true);

}

@Override

protected List<String> parseInput(final List<String> inputs) {

return inputs;

}

private int solve(

final List<String> input,

final Predicate<List<String>> strategy

) {

return (int) input.stream()

.map(s -> Arrays.asList(s.split(" ")))

.filter(strategy::test)

.count();

}

@Override

public Integer solvePart1(final List<String> input) {

final Predicate<List<String>> hasNoDuplicateWords = words ->

new Counter<>(words).values().stream().noneMatch(v -> v > 1L);

return solve(input, hasNoDuplicateWords);

}

@Override

public Integer solvePart2(final List<String> input) {

final Predicate<List<String>> hasNoAnagrams = words ->

words.size() == words.stream()

.map(w -> new Counter<>(Utils.asCharacterStream(w)))

.distinct().count();

return solve(input, hasNoAnagrams);

}

@Samples({

@Sample(method = "part1", input=TEST1, expected = "1"),

@Sample(method = "part1", input=TEST2, expected = "0"),

@Sample(method = "part1", input=TEST3, expected = "1"),

@Sample(method = "part2", input=TEST4, expected = "1"),

@Sample(method = "part2", input=TEST5, expected = "0"),

@Sample(method = "part2", input=TEST6, expected = "1"),

@Sample(method = "part2", input=TEST7, expected = "1"),

@Sample(method = "part2", input=TEST8, expected = "0"),

})

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

AoC2017_04.create().run();

}

private static final String TEST1 = "aa bb cc dd ee";

private static final String TEST2 = "aa bb cc dd aa";

private static final String TEST3 = "aa bb cc dd aaa";

private static final String TEST4 = "abcde fghij";

private static final String TEST5 = "abcde xyz ecdab";

private static final String TEST6 = "a ab abc abd abf abj";

private static final String TEST7 = "iiii oiii ooii oooi oooo";

private static final String TEST8 = "oiii ioii iioi iiio";

}

adventofcode/src/main/java/AoC2017_04.java at main · pareronia/adventofcode · GitHub

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