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50 lines
1.4 KiB
Java
50 lines
1.4 KiB
Java
import java.io.File;
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import java.io.FileNotFoundException;
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import java.util.Scanner;
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class DayOne {
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public static void main( String[] args) {
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int count = 0;
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int count2 = 0;
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int[] numbers;
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int[] solutions;
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solutions = new int[20];
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numbers = new int[500];
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try {
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File inputFile = new File("input.txt");
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Scanner readFile = new Scanner(inputFile);
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while (readFile.hasNextLine()) {
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numbers[count] = readFile.nextInt();
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count ++;
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}
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readFile.close();
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} catch (FileNotFoundException e) {
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System.out.println("crap");
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}
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for (int i = 0; i < count; i++){
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for (int j = 0; j < count; j++){
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for (int k = 0; k < count; k++){
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if (numbers[i] + numbers[j] + numbers[k] == 2020) {
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solutions[count2] = numbers[i];
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solutions[count2+1] = numbers[j];
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solutions[count2+2] = numbers[k];
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count2 = count2 + 3;
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}
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}
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}
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}
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System.out.println(solutions[0] * solutions[1] * solutions[2]);
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}
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} |