1. \u8ba1\u6570\u6392\u5e8f\u7684\u7279\u5f81<\/strong><\/div>\n
\u5f53\u8f93\u5165\u7684\u5143\u7d20\u662f n \u4e2a 0 \u5230 k \u4e4b\u95f4\u7684\u6574\u6570\u65f6\uff0c\u5b83\u7684\u8fd0\u884c\u65f6\u95f4\u662f \u0398(n + k)\u3002\u8ba1\u6570\u6392\u5e8f\u4e0d\u662f\u6bd4\u8f83\u6392\u5e8f\uff0c\u6392\u5e8f\u7684\u901f\u5ea6\u5feb\u4e8e\u4efb\u4f55\u6bd4\u8f83\u6392\u5e8f\u7b97\u6cd5\u3002<\/p>\n
\u7531\u4e8e\u7528\u6765\u8ba1\u6570\u7684\u6570\u7ec4C\u7684\u957f\u5ea6\u53d6\u51b3\u4e8e\u5f85\u6392\u5e8f\u6570\u7ec4\u4e2d\u6570\u636e\u7684\u8303\u56f4\uff08\u7b49\u4e8e\u5f85\u6392\u5e8f\u6570\u7ec4\u7684\u6700\u5927\u503c\u4e0e\u6700\u5c0f\u503c\u7684\u5dee\u52a0\u4e0a1\uff09\uff0c\u8fd9\u4f7f\u5f97\u8ba1\u6570\u6392\u5e8f\u5bf9\u4e8e\u6570\u636e\u8303\u56f4\u5f88\u5927\u7684\u6570\u7ec4\uff0c\u9700\u8981\u5927\u91cf\u65f6\u95f4\u548c\u5185\u5b58\u3002\u4f8b\u5982\uff1a\u8ba1\u6570\u6392\u5e8f\u662f\u7528\u6765\u6392\u5e8f0\u5230100\u4e4b\u95f4\u7684\u6570\u5b57\u7684\u6700\u597d\u7684\u7b97\u6cd5\uff0c\u4f46\u662f\u5b83\u4e0d\u9002\u5408\u6309\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f\u4eba\u540d\u3002\u4f46\u662f\uff0c\u8ba1\u6570\u6392\u5e8f\u53ef\u4ee5\u7528\u5728\u57fa\u6570\u6392\u5e8f\u4e2d\u7684\u7b97\u6cd5\u6765\u6392\u5e8f\u6570\u636e\u8303\u56f4\u5f88\u5927\u7684\u6570\u7ec4\u3002<\/p>\n
\u901a\u4fd7\u5730\u7406\u89e3\uff0c\u4f8b\u5982\u6709 10 \u4e2a\u5e74\u9f84\u4e0d\u540c\u7684\u4eba\uff0c\u7edf\u8ba1\u51fa\u6709 8 \u4e2a\u4eba\u7684\u5e74\u9f84\u6bd4 A \u5c0f\uff0c\u90a3 A \u7684\u5e74\u9f84\u5c31\u6392\u5728\u7b2c 9 \u4f4d,\u7528\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u5f97\u5230\u5176\u4ed6\u6bcf\u4e2a\u4eba\u7684\u4f4d\u7f6e,\u4e5f\u5c31\u6392\u597d\u4e86\u5e8f\u3002\u5f53\u7136\uff0c\u5e74\u9f84\u6709\u91cd\u590d\u65f6\u9700\u8981\u7279\u6b8a\u5904\u7406\uff08\u4fdd\u8bc1\u7a33\u5b9a\u6027\uff09\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6700\u540e\u8981\u53cd\u5411\u586b\u5145\u76ee\u6807\u6570\u7ec4\uff0c\u4ee5\u53ca\u5c06\u6bcf\u4e2a\u6570\u5b57\u7684\u7edf\u8ba1\u51cf\u53bb 1 \u7684\u539f\u56e0\u3002<\/p>\n
\u7b97\u6cd5\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
\n
\u627e\u51fa\u5f85\u6392\u5e8f\u7684\u6570\u7ec4\u4e2d\u6700\u5927\u548c\u6700\u5c0f\u7684\u5143\u7d20<\/li>\n
\u7edf\u8ba1\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u503c\u4e3ai\u7684\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u5b58\u5165\u6570\u7ec4C\u7684\u7b2ci\u9879<\/li>\n
\u5bf9\u6240\u6709\u7684\u8ba1\u6570\u7d2f\u52a0\uff08\u4eceC\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u6bcf\u4e00\u9879\u548c\u524d\u4e00\u9879\u76f8\u52a0\uff09<\/li>\n
\u53cd\u5411\u586b\u5145\u76ee\u6807\u6570\u7ec4\uff1a\u5c06\u6bcf\u4e2a\u5143\u7d20i\u653e\u5728\u65b0\u6570\u7ec4\u7684\u7b2cC(i)\u9879\uff0c\u6bcf\u653e\u4e00\u4e2a\u5143\u7d20\u5c31\u5c06C(i)\u51cf\u53bb1<\/li>\n<\/ol>\n
2. \u52a8\u56fe\u6f14\u793a<\/strong><\/div>\n
\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n
JavaScript<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
function countingSort(arr, maxValue) {\r\n var bucket = new Array(maxValue+1),\r\n sortedIndex = 0;\r\n arrLen = arr.length,\r\n bucketLen = maxValue + 1;\r\n\r\n for (var i = 0; i < arrLen; i++) {\r\n if (!bucket[arr[i]]) {\r\n bucket[arr[i]] = 0;\r\n }\r\n bucket[arr[i]]++;\r\n }\r\n\r\n for (var j = 0; j < bucketLen; j++) {\r\n while(bucket[j] > 0) {\r\n arr[sortedIndex++] = j;\r\n bucket[j]--;\r\n }\r\n }\r\n\r\n return arr;\r\n}<\/pre>\n
Python<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
def countingSort(arr, maxValue):\r\n bucketLen = maxValue+1\r\n bucket = [0]*bucketLen\r\n sortedIndex =0\r\n arrLen = len(arr)\r\n for i in range(arrLen):\r\n if not bucket[arr[i]]:\r\n bucket[arr[i]]=0\r\n bucket[arr[i]]+=1\r\n for j in range(bucketLen):\r\n while bucket[j]>0:\r\n arr[sortedIndex] = j\r\n sortedIndex+=1\r\n bucket[j]-=1\r\n return arr<\/pre>\n
Go<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
func countingSort(arr []int, maxValue int) []int {\r\n bucketLen := maxValue + 1\r\n bucket := make([]int, bucketLen) \/\/ \u521d\u59cb\u4e3a0\u7684\u6570\u7ec4\r\n\r\n sortedIndex := 0\r\n length := len(arr)\r\n\r\n for i := 0; i < length; i++ {\r\n bucket[arr[i]] += 1\r\n }\r\n\r\n for j := 0; j < bucketLen; j++ {\r\n for bucket[j] > 0 {\r\n arr[sortedIndex] = j\r\n sortedIndex += 1\r\n bucket[j] -= 1\r\n }\r\n }\r\n\r\n return arr\r\n}<\/pre>\n
Java<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
public class CountingSort implements IArraySort {\r\n\r\n @Override\r\n public int[] sort(int[] sourceArray) throws Exception {\r\n \/\/ \u5bf9 arr \u8fdb\u884c\u62f7\u8d1d\uff0c\u4e0d\u6539\u53d8\u53c2\u6570\u5185\u5bb9\r\n int[] arr = Arrays.copyOf(sourceArray, sourceArray.length);\r\n\r\n int maxValue = getMaxValue(arr);\r\n\r\n return countingSort(arr, maxValue);\r\n }\r\n\r\n private int[] countingSort(int[] arr, int maxValue) {\r\n int bucketLen = maxValue + 1;\r\n int[] bucket = new int[bucketLen];\r\n\r\n for (int value : arr) {\r\n bucket[value]++;\r\n }\r\n\r\n int sortedIndex = 0;\r\n for (int j = 0; j < bucketLen; j++) {\r\n while (bucket[j] > 0) {\r\n arr[sortedIndex++] = j;\r\n bucket[j]--;\r\n }\r\n }\r\n return arr;\r\n }\r\n\r\n private int getMaxValue(int[] arr) {\r\n int maxValue = arr[0];\r\n for (int value : arr) {\r\n if (maxValue < value) {\r\n maxValue = value;\r\n }\r\n }\r\n return maxValue;\r\n }\r\n\r\n}<\/pre>\n
PHP<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
function countingSort($arr, $maxValue = null)\r\n{\r\n if ($maxValue === null) {\r\n $maxValue = max($arr);\r\n }\r\n for ($m = 0; $m < $maxValue + 1; $m++) {\r\n $bucket[] = null;\r\n }\r\n\r\n $arrLen = count($arr);\r\n for ($i = 0; $i < $arrLen; $i++) {\r\n if (!array_key_exists($arr[$i], $bucket)) {\r\n $bucket[$arr[$i]] = 0;\r\n }\r\n $bucket[$arr[$i]]++;\r\n }\r\n\r\n $sortedIndex = 0;\r\n foreach ($bucket as $key => $len) {\r\n if ($len !== null) $arr[$sortedIndex++] = $key;\r\n if($len !== null){\r\n for($j = 0; $j < $len; $j++){\r\n $arr[$sortedIndex++] = $key;\r\n }\r\n }\r\n }\r\n\r\n return $arr;\r\n}<\/pre>\n
C<\/strong><\/span><\/div>\n
\u5b9e\u4f8b<\/strong><\/p>\n
#include \r\n#include \r\n#include \r\n\r\nvoid print_arr(int *arr, int n) {\r\n int i;\r\n printf(\"%d\", arr[0]);\r\n for (i = 1; i < n; i++)\r\n printf(\" %d\", arr[i]);\r\n printf(\"\\n\");\r\n}\r\n\r\nvoid counting_sort(int *ini_arr, int *sorted_arr, int n) {\r\n int *count_arr = (int *) malloc(sizeof(int) * 100);\r\n int i, j, k;\r\n for (k = 0; k < 100; k++)\r\n count_arr[k] = 0;\r\n for (i = 0; i < n; i++)\r\n count_arr[ini_arr[i]]++;\r\n for (k = 1; k < 100; k++)\r\n count_arr[k] += count_arr[k - 1];\r\n for (j = n; j > 0; j--)\r\n sorted_arr[--count_arr[ini_arr[j - 1]]] = ini_arr[j - 1];\r\n free(count_arr);\r\n}\r\n\r\nint main(int argc, char **argv) {\r\n int n = 10;\r\n int i;\r\n int *arr = (int *) malloc(sizeof(int) * n);\r\n int *sorted_arr = (int *) malloc(sizeof(int) * n);\r\n srand(time(0));\r\n for (i = 0; i < n; i++)\r\n arr[i] = rand() % 100;\r\n printf(\"ini_array: \");\r\n print_arr(arr, n);\r\n counting_sort(arr, sorted_arr, n);\r\n printf(\"sorted_array: \");\r\n print_arr(sorted_arr, n);\r\n free(arr);\r\n free(sorted_arr);\r\n return 0;\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u8f93\u5165\u7684\u5143\u7d20\u662f n \u4e2a 0 \u5230 k \u4e4b\u95f4\u7684\u6574\u6570\u65f6\uff0c\u5b83\u7684\u8fd0\u884c\u65f6\u95f4\u662f \u0398(n + k)\u3002\u8ba1\u6570\u6392\u5e8f\u4e0d\u662f\u6bd4\u8f83\u6392\u5e8f\uff0c\u6392\u5e8f […]<\/p>\n","protected":false},"author":321,"featured_media":211524,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-211522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/211522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/321"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=211522"}],"version-history":[{"count":4,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/211522\/revisions"}],"predecessor-version":[{"id":211726,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/211522\/revisions\/211726"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/211524"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=211522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=211522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=211522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}