public void Y2021_Day19_FindBeacons_Returns_Correct_Value() { // Arrange string[] data = { "--- scanner 0 ---", "404,-588,-901", "528,-643,409", "-838,591,734", "390,-675,-793", "-537,-823,-458", "-485,-357,347", "-345,-311,381", "-661,-816,-575", "-876,649,763", "-618,-824,-621", "553,345,-567", "474,580,667", "-447,-329,318", "-584,868,-557", "544,-627,-890", "564,392,-477", "455,729,728", "-892,524,684", "-689,845,-530", "423,-701,434", "7,-33,-71", "630,319,-379", "443,580,662", "-789,900,-551", "459,-707,401", string.Empty, "--- scanner 1 ---", "686,422,578", "605,423,415", "515,917,-361", "-336,658,858", "95,138,22", "-476,619,847", "-340,-569,-846", "567,-361,727", "-460,603,-452", "669,-402,600", "729,430,532", "-500,-761,534", "-322,571,750", "-466,-666,-811", "-429,-592,574", "-355,545,-477", "703,-491,-529", "-328,-685,520", "413,935,-424", "-391,539,-444", "586,-435,557", "-364,-763,-893", "807,-499,-711", "755,-354,-619", "553,889,-390", string.Empty, "--- scanner 2 ---", "649,640,665", "682,-795,504", "-784,533,-524", "-644,584,-595", "-588,-843,648", "-30,6,44", "-674,560,763", "500,723,-460", "609,671,-379", "-555,-800,653", "-675,-892,-343", "697,-426,-610", "578,704,681", "493,664,-388", "-671,-858,530", "-667,343,800", "571,-461,-707", "-138,-166,112", "-889,563,-600", "646,-828,498", "640,759,510", "-630,509,768", "-681,-892,-333", "673,-379,-804", "-742,-814,-386", "577,-820,562", string.Empty, "--- scanner 3 ---", "-589,542,597", "605,-692,669", "-500,565,-823", "-660,373,557", "-458,-679,-417", "-488,449,543", "-626,468,-788", "338,-750,-386", "528,-832,-391", "562,-778,733", "-938,-730,414", "543,643,-506", "-524,371,-870", "407,773,750", "-104,29,83", "378,-903,-323", "-778,-728,485", "426,699,580", "-438,-605,-362", "-469,-447,-387", "509,732,623", "647,635,-688", "-868,-804,481", "614,-800,639", "595,780,-596", string.Empty, "--- scanner 4 ---", "727,592,562", "-293,-554,779", "441,611,-461", "-714,465,-776", "-743,427,-804", "-660,-479,-426", "832,-632,460", "927,-485,-438", "408,393,-506", "466,436,-512", "110,16,151", "-258,-428,682", "-393,719,612", "-211,-452,876", "808,-476,-593", "-575,615,604", "-485,667,467", "-680,325,-822", "-627,-443,-432", "872,-547,-609", "833,512,582", "807,604,487", "839,-516,451", "891,-625,532", "-652,-548,-490", "30,-46,-14", }; // Act (int actualCount, int actualLargestDistance) = Day19.FindBeacons(data); // Assert actualCount.ShouldBe(79); actualLargestDistance.ShouldBe(3621); }