중급 테스트 1
74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51
와 같은 숫자와 , (공백하나) 으로만 구성된 문자열이 있습니다.
이 문자열을 php의 제어구조와 내장함수 explode 만을 사용하여
낮은 숫자부터 차례로 , (공백하나) 을 붙여서
1, 2, 7, 8, 12, 17, 18, 19, 20, 23, 24, 25, 27, 35, 36, 38, 39, 41, 42, 46, 47, 51, 52, 53, 54, 55, 61, 63, 66, 67, 69, 71, 72, 73, 74, 75, 78, 79, 81, 82, 83, 84, 85, 86, 88, 89, 92, 93, 95, 96
와 같은 리턴값이 나오는 사용자 정의 함수를 만드시요.
제한시간 - 4시간
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댓글 59개
문제의 요지는 간단한 소트 프로그램이죠.
버블 소트라도 머릿속에서 나오려나???
function sort_comma($data)
{
$arr = explode(", ", $data);
for ($i=0; $i<count($arr) - 1; $i++) {
for ($k=$i+1; $k<count($arr); $k++) {
if ($arr[$i] > $arr[$k]) {
$tmp = $arr[$i];
$arr[$i] = $arr[$k];
$arr[$k] = $tmp;
}
}
}
$comma = "";
$str = "";
for ($i=0; $i<count($arr); $i++) {
$str .= $comma . $arr[$i];
$comma = ", ";
}
return $str;
}
$data = "74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51";
echo sort_comma($data);
금방 하시네요.
방법이야 많이 있습니다.
자 도전....!!
이거 대체 코드 모르는데 큰일이군??? ㅠㅠ
밥먹고 오겠습니다.
function sort_comma($data)
{
$arr = explode(", ", $data);
$count = 0;
foreach($arr as $k=>$v) {
$count++;
}
for ($i=0; $i<$count - 1; $i++) {
for ($k=$i+1; $k<$count; $k++) {
if ($arr[$i] > $arr[$k]) {
$tmp = $arr[$i];
$arr[$i] = $arr[$k];
$arr[$k] = $tmp;
}
}
}
$comma = "";
$str = "";
for ($i=0; $i<$count; $i++) {
$str .= $comma . $arr[$i];
$comma = ", ";
}
return $str;
}
$data = "74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51";
echo sort_comma($data);
$string = "74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51";
echo _sort($string);
function _sort($string){
$arr = explode(", ",$string);
foreach($arr as $key => $val){
$_temp[$val] = $val;
if($after < $val){
$after = $val;
}
}
for($i=0;$i<=$after;$i++){
if($_temp[$i]){
if($i == $after)
$result .= $_temp[$i];
else
$result .= $_temp[$i].", ";
}
}
return $result;
}
?>
루프횟수는 두번이면 끝나군요.
저도 이제는 문제를 내면서 일정한 시간이 지나면 제가 푼답도 올릴려고 합니다.
function sort_str($str, $delimiter){
$array = explode($delimiter, $str);
$len = 0;
foreach($array as $v){
$len++;
}
while (1){
$cnt = 0;
for ($k = 1; $k < $len; $k++){
$v = $array[$k];
$pv = $array[($k-1)];
if ($v < $pv) {
$array[$k-1] = $v;
$array[$k] = $pv;
$cnt++;
}
}
if ($cnt == 0) break;
}
$return = $array[0];
for($k = 1; $k < $len; $k++){
$return .= $delimiter . $array[$k];
}
return $return;
}
$str = '74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51';
echo sort_str($str, ', ');
값이 많아질경우 앞뒤 값 비교하여 처리하는게
비효율적인듯 해서 한번에 비교할수 있게 바꿔봤습니다.
<?
function sort_comma($data){
$arr = explode(", ",$data);
$root = $arr[0];
$i=0;
$max = 0;
while(1){
if($num > $max ) $max = $num;
$num = $root - $arr[$i];
if($arr[$i] =="" ){
break;
}
$arr2[$num] = $arr[$i];
$i++;
}
while(1){
if($arr2[$max]){
$str.= $arr2[$max];
$k++;
}
$max --;
if($k == $i) break;
if($arr2[$max]) $str.= ", ";
}
return $str;
}
$data = "74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51";
echo sort_comma($data);
?>
지금 실행시간 비교해서 올립니다.
군포돼지님 ===> 0.000280141830444
유창화 ===> 0.0015881061554
관리자님 ===> 0.00191283226013
먹고 말리라.... 1등
사실 제가 한건 진짜 sort라고 보긴 어렵겠죠? ;ㅅ;
<?
function sort_comma($data)
{
$arr = explode(", ", $data);
$i = 0;
foreach($arr as $k) {
$k = $i + 1;
while ($arr[$k] != null) {
if ($arr[$i] > $arr[$k]) {
$tmp = $arr[$i];
$arr[$i] = $arr[$k];
$arr[$k] = $tmp;
}
$k++;
}
$i++;
}
$count = $i;
$comma = "";
$str = "";
for ($i=0; $i<$count; $i++) {
$str .= $comma . $arr[$i];
$comma = ", ";
}
return $str;
}
$data = "74, 54, 88, 69, 46, 2, 20, 82, 36, 79, 12, 7, 81, 39, 42, 93, 18, 55, 35, 8, 85, 25, 66, 84, 23, 73, 83, 67, 52, 78, 1, 24, 71, 96, 75, 86, 17, 72, 38, 19, 27, 53, 47, 41, 92, 63, 61, 95, 89, 51";
echo sort_comma($data);
0.005 빨라졋습니다.
저는 앞질르셧네요 ㅠㅠ
Example #1 Timing script execution with microtime()
<?php
/**
* Simple function to replicate PHP 5 behaviour
*/
function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
$time_start = microtime_float();
// Sleep for a while
usleep(100);
$time_end = microtime_float();
$time = $time_end - $time_start;
echo "Did nothing in $time seconds\n";
?>
데이터 값을 이걸로 해서 비교해보세요 ㅋㅋㅋ
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 935 , 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, 575, 576, 577, 578, 579, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 720, 721, 722, 723, 724, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, 737, 738, 739, 740, 741, 742, 743, 744, 745, 746, 747, 748, 749, 750, 751, 752, 753, 754, 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 765, 766, 767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 798, 799, 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813, 814, 815, 816, 817, 818, 819, 820, 821, 822, 823, 824, 825, 826, 827, 828, 829, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842, 843, 844, 845, 846, 847, 848, 849, 850, 851, 852, 853, 854, 855, 856, 857, 858, 859, 860, 861, 862, 863, 864, 865, 866, 867, 868, 869, 870, 871, 872, 873, 874, 875, 876, 877, 878, 879, 880, 881, 882, 883, 884, 885, 886, 887, 888, 889, 890, 891, 892, 893, 894, 895, 896, 897, 898, 899, 900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 982, 983, 984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995, 996, 997, 998, 999, 1000 ====> 관리자님 ===> 0.555248975754
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, 575, 576, 577, 578, 579, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 720, 721, 722, 723, 724, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, 737, 738, 739, 740, 741, 742, 743, 744, 745, 746, 747, 748, 749, 750, 751, 752, 753, 754, 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 765, 766, 767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 798, 799, 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813, 814, 815, 816, 817, 818, 819, 820, 821, 822, 823, 824, 825, 826, 827, 828, 829, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842, 843, 844, 845, 846, 847, 848, 849, 850, 851, 852, 853, 854, 855, 856, 857, 858, 859, 860, 861, 862, 863, 864, 865, 866, 867, 868, 869, 870, 871, 872, 873, 874, 875, 876, 877, 878, 879, 880, 881, 882, 883, 884, 885, 886, 887, 888, 889, 890, 891, 892, 893, 894, 895, 896, 897, 898, 899, 900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, ====> 밀로즈님 ===> 0.00272989273071
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range(1,1000) 의 shuffle 값입니다.
1부터 1000까지 빠짐없이 나와야 합니다.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, 575, 576, 577, 578, 579, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 720, 721, 722, 723, 724, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, 737, 738, 739, 740, 741, 742, 743, 744, 745, 746, 747, 748, 749, 750, 751, 752, 753, 754, 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 765, 766, 767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 798, 799, 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813, 814, 815, 816, 817, 818, 819, 820, 821, 822, 823, 824, 825, 826, 827, 828, 829, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842, 843, 844, 845, 846, 847, 848, 849, 850, 851, 852, 853, 854, 855, 856, 857, 858, 859, 860, 861, 862, 863, 864, 865, 866, 867, 868, 869, 870, 871, 872, 873, 874, 875, 876, 877, 878, 879, 880, 881, 882, 883, 884, 885, 886, 887, 888, 889, 890, 891, 892, 893, 894, 895, 896, 897, 898, 899, 900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 982, 983, 984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995, 996, 997, 998, 999, 1000 ====> 유창화 ===> 0.820332050323
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소스내부에 max값 뽑는 부분 외에 비교가 없잔아요
루프도 두번이고
저나 밀로즈님 처럼 키값의 순서를 이용하는 경우
지금처럼 단순 배열일경우 연산이 빠르지만 저 값들중에
8억 뭐 이런숫자가 하나 끼어있으면 의미없는 루프문이 8억번 가까이 돌아가게 됩니다. 결과가 전혀 다를거예요. 단순히 제소스와 밀로즈님 소스를 비교하면 당연 밀로즈님 소스가 간결하고 좋습니다 ^__^
숫자의 차이가 크면...
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001 ====> 유창화 ===> 0.00943899154663
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001 ====> 관리자님 ===> 0.00563097000122
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001 ====> 밀로즈님 ===> 0.177546977997
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001 ====> 군포돼지님 ===> 0.312237024307
나도 다음부터 키값을 사용할테다... ㅠㅠ
경우에 따라 쓰기 나름인것 같습니다.
/**
* Simple function to replicate PHP 5 behaviour
*/
function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
$time_start = microtime_float();
$string = "95001, 42001, 19001, 3001, 2001, 92001, 32001, 60001, 31001, 1001, 77001, 25001, 15001, 10001, 39001, 12001, 45001, 74001, 35001, 78001, 80001, 96001, 11001, 43001, 97001, 36001, 17001, 70001, 28001, 98001, 71001, 30001, 40001, 23001, 53001, 29001, 83001, 18001, 61001, 26001, 16001, 49001, 52001, 79001, 5001, 14001, 57001, 89001, 59001, 67001, 46001, 9001, 73001, 27001, 76001, 94001, 72001, 68001, 88001, 55001, 81001, 84001, 93001, 24001, 34001, 6001, 58001, 50001, 8001, 91001, 47001, 22001, 38001, 4001, 41001, 86001, 51001, 62001, 13001, 99001, 75001, 21001, 56001, 44001, 20001, 82001, 65001, 63001, 87001, 85001, 48001, 1, 7001, 69001, 64001, 66001, 90001, 37001, 33001, 54001";
echo _sort($string);
function _sort($string){
$arr = explode(", ",$string);
foreach($arr as $key => $val){
$_temp[$val] = $val;
if($after < $val){
$after = $val;
}
if($before > $val){
$before = $val;
}
}
for($i=$before;$i<=$after;$i++){
if($_temp[$i]){
if($i == $after)
$result .= $_temp[$i];
else
$result .= $_temp[$i].", ";
}
}
return $result;
}
$time_end = microtime_float();
$time = $time_end - $time_start;
echo "<br />Did nothing in $time seconds<br />";
?>
약간 개선 버전인데 역시 키 간격이 크면 답이 없네요...
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001
Did nothing in 0.0533311367035 seconds
근데 저 아직도 퇴근 못했네요 ㅠㅠ
$string = "95001, 42001, 19001, 3001, 2001, 92001, 32001, 60001, 31001, 1001, 77001, 25001, 15001, 10001, 39001, 12001, 45001, 74001, 35001, 78001, 80001, 96001, 11001, 43001, 97001, 36001, 17001, 70001, 28001, 98001, 71001, 30001, 40001, 23001, 53001, 29001, 83001, 18001, 61001, 26001, 16001, 49001, 52001, 79001, 5001, 14001, 57001, 89001, 59001, 67001, 46001, 9001, 73001, 27001, 76001, 94001, 72001, 68001, 88001, 55001, 81001, 84001, 93001, 24001, 34001, 6001, 58001, 50001, 8001, 91001, 47001, 22001, 38001, 4001, 41001, 86001, 51001, 62001, 13001, 99001, 75001, 21001, 56001, 44001, 20001, 82001, 65001, 63001, 87001, 85001, 48001, 1, 7001, 69001, 64001, 66001, 90001, 37001, 33001, 54001";
$arr = explode(", ",$string);
asort($arr);
$string = implode(", ",$arr);
echo $string;
1, 1001, 2001, 3001, 4001, 5001, 6001, 7001, 8001, 9001, 10001, 11001, 12001, 13001, 14001, 15001, 16001, 17001, 18001, 19001, 20001, 21001, 22001, 23001, 24001, 25001, 26001, 27001, 28001, 29001, 30001, 31001, 32001, 33001, 34001, 35001, 36001, 37001, 38001, 39001, 40001, 41001, 42001, 43001, 44001, 45001, 46001, 47001, 48001, 49001, 50001, 51001, 52001, 53001, 54001, 55001, 56001, 57001, 58001, 59001, 60001, 61001, 62001, 63001, 64001, 65001, 66001, 67001, 68001, 69001, 70001, 71001, 72001, 73001, 74001, 75001, 76001, 77001, 78001, 79001, 80001, 81001, 82001, 83001, 84001, 85001, 86001, 87001, 88001, 89001, 90001, 91001, 92001, 93001, 94001, 95001, 96001, 97001, 98001, 99001
Did nothing in 0.000259876251221 seconds
이제 그만......
다들 수고하셧습니다.
다들 고수들이 신데요
빌더와 스킨이 많은 관계로 프로그래밍 모르는 나같은 노인네도 홈피가 뚝딱~~~~
sir 때문에 항상 고맙삼^^
그나저나 홈페이지 장사꾼들 밥굶는건 아니겠죠?
sir의 무료 솔루션 때문에 ㅎ~
우리같이 아무것도 모르는 사람들이야 좋지만 서도.....