public void TreeAncestorTest()
{
TreeAncestor t = new TreeAncestor(7, new int[] { -1, 0, 0, 1, 1, 2, 2 });
Assert.IsTrue(t.GetKthAncestor(5, 2) == 0);
Assert.IsTrue(t.GetKthAncestor(3, 1) == 1);
}
public void TreeAncestorTest8()
{
TreeAncestor t = new TreeAncestor(1000, new int[] { -1, 0, 0, 0, 2, 0, 1, 5, 3, 4, 0, 7, 9, 2, 6, 5, 1, 12, 16, 8, 8, 3, 16, 18, 2, 4, 11, 7, 10, 7, 26, 18, 24, 14, 27, 21, 13, 18, 30, 34, 25, 13, 17, 7, 33, 0, 7, 24, 15, 15, 9, 31, 35, 52, 32, 11, 32, 7, 41, 4, 37, 32, 29, 59, 63, 22, 4, 41, 20, 59, 64, 35, 0, 9, 66, 26, 24, 11, 15, 56, 4, 32, 10, 68, 52, 21, 84, 59, 85, 56, 10, 33, 48, 34, 70, 43, 23, 48, 44, 63, 15, 99, 2, 92, 86, 22, 43, 28, 76, 8, 49, 55, 19, 108, 34, 73, 17, 10, 20, 90, 68, 97, 5, 50, 52, 104, 92, 9, 92, 74, 91, 110, 125, 72, 128, 93, 119, 2, 50, 136, 86, 53, 125, 80, 43, 16, 1, 137, 23, 36, 13, 0, 111, 114, 99, 140, 84, 135, 101, 54, 81, 136, 3, 84, 127, 94, 139, 144, 128, 147, 94, 64, 57, 156, 152, 159, 55, 75, 109, 52, 122, 34, 122, 70, 178, 23, 48, 79, 10, 22, 150, 172, 81, 10, 20, 128, 102, 102, 168, 187, 167, 141, 55, 159, 176, 49, 127, 3, 70, 158, 95, 58, 26, 89, 30, 96, 82, 207, 16, 65, 120, 76, 49, 107, 89, 56, 216, 2, 167, 83, 162, 180, 150, 165, 94, 108, 21, 225, 44, 215, 174, 86, 89, 24, 25, 243, 94, 39, 103, 50, 106, 122, 25, 212, 98, 232, 179, 170, 216, 167, 80, 2, 116, 259, 204, 98, 236, 240, 138, 138, 177, 165, 93, 33, 15, 225, 45, 85, 175, 171, 110, 98, 274, 66, 114, 176, 187, 202, 283, 135, 164, 102, 107, 189, 276, 237, 94, 241, 2, 36, 221, 217, 80, 8, 81, 111, 189, 21, 33, 102, 260, 189, 305, 26, 243, 215, 249, 175, 91, 166, 245, 75, 96, 253, 202, 122, 6, 189, 129, 131, 327, 273, 119, 164, 158, 92, 112, 253, 192, 309, 147, 10, 292, 217, 339, 331, 154, 252, 22, 193, 110, 181, 84, 168, 267, 16, 243, 356, 258, 43, 61, 318, 177, 144, 31, 253, 201, 56, 357, 281, 135, 338, 196, 94, 240, 134, 275, 369, 76, 318, 109, 365, 296, 316, 225, 299, 380, 267, 380, 382, 8, 40, 222, 41, 26, 234, 379, 109, 397, 182, 374, 149, 119, 173, 76, 249, 241, 120, 260, 162, 242, 395, 352, 57, 353, 102, 248, 110, 298, 397, 204, 28, 119, 356, 16, 59, 26, 388, 254, 88, 5, 120, 127, 126, 304, 358, 133, 230, 175, 270, 373, 432, 350, 370, 82, 190, 109, 59, 400, 315, 303, 273, 298, 359, 37, 151, 209, 48, 184, 249, 356, 20, 197, 181, 407, 252, 239, 20, 129, 438, 156, 205, 156, 66, 29, 31, 255, 197, 77, 266, 328, 163, 178, 339, 207, 240, 9, 289, 478, 144, 197, 387, 351, 40, 421, 198, 68, 325, 485, 482, 237, 266, 178, 24, 421, 237, 26, 290, 92, 415, 55, 385, 326, 91, 223, 280, 255, 164, 176, 11, 233, 386, 160, 114, 247, 207, 250, 35, 442, 319, 70, 349, 36, 253, 268, 239, 212, 207, 80, 504, 508, 447, 180, 511, 209, 26, 429, 476, 284, 132, 148, 63, 395, 468, 376, 297, 329, 301, 278, 363, 12, 211, 260, 442, 158, 7, 108, 53, 558, 161, 327, 321, 498, 371, 280, 336, 162, 424, 455, 55, 399, 5, 570, 229, 17, 233, 112, 197, 498, 478, 201, 565, 378, 54, 431, 149, 136, 23, 127, 475, 169, 529, 196, 151, 506, 29, 498, 85, 202, 138, 57, 269, 538, 459, 560, 276, 263, 274, 555, 511, 526, 243, 57, 63, 208, 273, 122, 128, 68, 298, 115, 305, 498, 232, 74, 413, 193, 608, 617, 428, 516, 7, 173, 600, 270, 105, 187, 497, 173, 422, 563, 189, 119, 230, 195, 496, 255, 381, 484, 515, 282, 659, 637, 496, 44, 331, 588, 104, 359, 475, 89, 76, 299, 330, 649, 388, 175, 349, 480, 337, 378, 73, 382, 630, 200, 422, 508, 83, 20, 214, 596, 530, 459, 274, 111, 129, 518, 214, 334, 269, 89, 423, 108, 31, 163, 8, 544, 568, 78, 290, 90, 533, 619, 208, 693, 455, 302, 480, 686, 270, 696, 560, 250, 202, 432, 197, 676, 536, 48, 151, 675, 390, 233, 513, 462, 402, 134, 304, 729, 508, 233, 647, 487, 553, 477, 176, 283, 532, 90, 411, 605, 61, 57, 203, 691, 665, 622, 444, 413, 259, 27, 535, 535, 195, 696, 729, 481, 50, 666, 472, 334, 178, 764, 755, 725, 205, 80, 214, 746, 695, 20, 741, 728, 602, 736, 49, 118, 604, 577, 708, 179, 750, 61, 676, 680, 439, 272, 560, 617, 210, 296, 581, 264, 617, 796, 547, 689, 715, 3, 524, 746, 314, 221, 177, 774, 800, 708, 354, 133, 486, 543, 371, 483, 156, 622, 131, 176, 604, 560, 687, 24, 763, 354, 89, 541, 430, 461, 260, 405, 109, 430, 147, 31, 587, 744, 91, 764, 816, 802, 791, 753, 827, 202, 637, 194, 696, 510, 345, 489, 705, 261, 211, 791, 638, 741, 27, 791, 330, 84, 385, 107, 157, 722, 469, 394, 746, 517, 298, 77, 752, 678, 303, 375, 469, 68, 190, 453, 227, 74, 583, 635, 524, 792, 736, 431, 814, 601, 801, 762, 270, 393, 783, 787, 548, 180, 295, 601, 490, 411, 203, 696, 281, 5, 206, 257, 183, 854, 515, 850, 28, 355, 800, 239, 782, 425, 862, 631, 707, 540, 410, 498, 800, 58, 391, 42, 783, 231, 331, 417, 884, 158, 646, 301, 754, 45, 540, 781, 321, 75, 125, 380, 674, 944, 335, 582, 631, 585, 633, 639, 41, 802, 203, 221, 57, 85, 547, 220, 350, 330, 139, 20, 357, 763, 408, 659, 585, 248, 377, 572, 426, 554, 922, 155, 305, 106, 313, 836, 977, 457, 200, 862, 563, 721, 805, 460, 777, 129, 765, 123, 851 });
Assert.IsTrue(t.GetKthAncestor(448, 10) == 5);
}