{"id":5504,"date":"2023-08-30T20:01:00","date_gmt":"2023-08-30T12:01:00","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=5504"},"modified":"2023-08-29T17:01:36","modified_gmt":"2023-08-29T09:01:36","slug":"%e4%b8%80%e4%ba%9bleetcode%e9%a2%98%e7%9b%ae%e7%9a%84%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/5504.html","title":{"rendered":"\u4e00\u4e9bLeetCode\u9898\u76ee\u7684\u5b9e\u73b0"},"content":{"rendered":"\n

=Start=<\/p>\n\n\n\n

\u7f18\u7531\uff1a<\/h4>\n\n\n\n

\u524d\u6bb5\u65f6\u95f4\u5728\u505a\u6821\u62db\u751f\u7684\u9762\u8bd5\u3002\u56e0\u4e3a\u5927\u90e8\u5206\u6821\u62db\u751f\u7684\u9879\u76ee\u7ecf\u5386\u4f1a\u6bd4\u8f83\u7b80\u5355\uff0c\u6240\u4ee5\u9664\u4e86\u8003\u5bdf\u6c9f\u901a\u8868\u8fbe\u80fd\u529b\u4e4b\u5916\uff0c\u8fd8\u4f1a\u7528\u4e00\u4e9b\u4ee3\u7801\u9898\u6765\u8003\u5bdf\u7f16\u7a0b\u80fd\u529b\uff08\u5bf9\u4e8e\u6280\u672f\u5c97\u6765\u8bf4\uff09\u3002\u56e0\u4e3a\u6211\u4eec\u5f53\u524d\u5728\u62db\u8058\/\u9762\u8bd5\u7684\u975e\u4e13\u4e1a\u7814\u53d1\u65b9\u5411\uff08\u53ea\u9700\u8981\u5177\u5907\u4e00\u5b9a\u7684\u7f16\u7a0b\u80fd\u529b\u548c\u903b\u8f91\u601d\u7ef4\u80fd\u529b\uff0c\u9047\u5230\u4e00\u822c\u95ee\u9898\u80fd\u81ea\u5df1\u89e3\u51b3\u6216\u8005\u6709\u601d\u8def\u89e3\u51b3\u5373\u53ef\uff09\uff0c\u53ea\u662f\u60f3\u4e86\u89e3\u5019\u9009\u4eba\u5bf9\u4e8e\u4ed6\u5199\u5728\u7b80\u5386\u91cc\u7684\u5e38\u7528\u7f16\u7a0b\u8bed\u8a00\u638c\u63e1\u7684\u719f\u7ec3\u7a0b\u5ea6\u3001\u89e3\u9898\u601d\u8def\u903b\u8f91\u662f\u5426\u6e05\u6670\uff0c\u6240\u4ee5\u51fa\u7684\u9898\u4e5f\u4e0d\u7b97\u96be\uff08\u4e0d\u662f\u90a3\u79cd\u4e00\u4e0a\u6765\u5c31\u8ba9\u4f60\u624b\u5199\u52a8\u6001\u89c4\u5212\u3001\u7ea2\u9ed1\u6811\u7684\u98ce\u683c\uff09\u3002\u56e0\u4e3a\u6709\u4e00\u6bb5\u65f6\u95f4\u6ca1\u5199\u4ee3\u7801\u4e86\uff0c\u78b0\u5230\u8fd9\u79cd\u9898\u76ee\u6211\u4e5f\u60f3\u8bd5\u4e00\u8bd5\uff0c\u6240\u4ee5\u540e\u6765\u4e0d\u592a\u5fd9\u7684\u65f6\u5019\u4e5f\u62bd\u7a7a\u5199\u4e86\u51e0\u9898\uff0c\u6d3b\u52a8\u6d3b\u52a8\u8111\u7b4b\uff0c\u5728\u6b64\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0b\uff0c\u65b9\u4fbf\u540e\u9762\u53c2\u8003\u3002<\/p>\n\n\n\n

\u6b63\u6587\uff1a<\/h4>\n\n\n\n

\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n
'''\n93. \u590d\u539f IP \u5730\u5740\n\n\u6709\u6548 IP \u5730\u5740 \u6b63\u597d\u7531\u56db\u4e2a\u6574\u6570\uff08\u6bcf\u4e2a\u6574\u6570\u4f4d\u4e8e 0 \u5230 255 \u4e4b\u95f4\u7ec4\u6210\uff0c\u4e14\u4e0d\u80fd\u542b\u6709\u524d\u5bfc 0\uff09\uff0c\u6574\u6570\u4e4b\u95f4\u7528 '.' \u5206\u9694\u3002\n\n\u4f8b\u5982\uff1a\"0.1.2.201\" \u548c \"192.168.1.1\" \u662f \u6709\u6548 IP \u5730\u5740\uff0c\u4f46\u662f \"0.011.255.245\"\u3001\"192.168.1.312\" \u548c \"192.168@1.1\" \u662f \u65e0\u6548 IP \u5730\u5740\u3002\n\n\u7ed9\u5b9a\u4e00\u4e2a\u53ea\u5305\u542b\u6570\u5b57\u7684\u5b57\u7b26\u4e32 s \uff0c\u7528\u4ee5\u8868\u793a\u4e00\u4e2a IP \u5730\u5740\uff0c\u8fd4\u56de\u6240\u6709\u53ef\u80fd\u7684\u6709\u6548 IP \u5730\u5740\uff0c\u8fd9\u4e9b\u5730\u5740\u53ef\u4ee5\u901a\u8fc7\u5728 s \u4e2d\u63d2\u5165 '.' \u6765\u5f62\u6210\u3002\u4f60 \u4e0d\u80fd \u91cd\u65b0\u6392\u5e8f\u6216\u5220\u9664 s \u4e2d\u7684\u4efb\u4f55\u6570\u5b57\u3002\u4f60\u53ef\u4ee5\u6309 \u4efb\u4f55 \u987a\u5e8f\u8fd4\u56de\u7b54\u6848\u3002\n'''\n\ndef restore_ipaddr(s):\n    ret = set()\n    s_len = len(s)\n    if s_len > 12 or s_len < 4:\n        return ret\n    for i in range(1,s_len-2):\n        for j in range(i+1,s_len-1): #\u4ecei+1\u5f00\u59cb\uff0c\u8d77\u59cb\u70b9\u5e94\u8be5\u662f\u52a8\u6001\u800c\u975e\u9759\u6001\u7684\uff0c\u5426\u5219\u540e\u9762\u7684\u5b57\u7b26\u4e32\u622a\u53d6\u5c31\u53ef\u80fd\u51fa\u73b0\u7a7a\u4e32\u7684\u60c5\u51b5\n            for k in range(j+1,s_len): #\u4ecej+1\u5f00\u59cb\uff0c\u8d77\u59cb\u70b9\u5e94\u8be5\u662f\u52a8\u6001\u800c\u975e\u9759\u6001\u7684\uff0c\u5426\u5219\u540e\u9762\u7684\u5b57\u7b26\u4e32\u622a\u53d6\u5c31\u53ef\u80fd\u51fa\u73b0\u7a7a\u4e32\u7684\u60c5\u51b5\n                a,b,c,d = s[0:i],s[i:j],s[j:k],s[k:]\n                # print(a,b,c,d)\n                # \u524d\u5bfc0\n                if str(int(a)) != a or \\\n                   str(int(b)) != b or \\\n                   str(int(c)) != c or \\\n                   str(int(d)) != d:\n                    continue\n                # \u8d85255\n                elif int(a)>255 or int(b)>255 or int(c)>255 or int(d)>255:\n                    continue\n                else:\n                    ret.add(\".\".join([a,b,c,d]))\n    return ret\n\nprint(restore_ipaddr(\"1111\"))\nprint(restore_ipaddr(\"25525511135\"))\nprint(restore_ipaddr(\"255255111135\"))\nprint(restore_ipaddr(\"2552551111351\"))\nprint(restore_ipaddr(\"101023\"))<\/code><\/pre>\n\n\n\n
'''\n209. \u957f\u5ea6\u6700\u5c0f\u7684\u5b50\u6570\u7ec4\n\n\u7ed9\u5b9a\u4e00\u4e2a\u542b\u6709 n \u4e2a\u6b63\u6574\u6570\u7684\u6570\u7ec4\u548c\u4e00\u4e2a\u6b63\u6574\u6570 target \u3002\n\n\u627e\u51fa\u8be5\u6570\u7ec4\u4e2d\u6ee1\u8db3\u5176\u548c \u2265 target \u7684\u957f\u5ea6\u6700\u5c0f\u7684 \u8fde\u7eed\u5b50\u6570\u7ec4 [numsl, numsl+1, ..., numsr-1, numsr] \uff0c\u5e76\u8fd4\u56de\u5176\u957f\u5ea6\u3002\u5982\u679c\u4e0d\u5b58\u5728\u7b26\u5408\u6761\u4ef6\u7684\u5b50\u6570\u7ec4\uff0c\u8fd4\u56de 0 \u3002\n'''\n\ndef min_len_sub_array(target,nums):\n    if not nums:\n        return 0\n\n    left, right = 0, 0\n    total = 0\n    min_len = float('inf') #\u8fd9\u4e2a\u7528\u6cd5\u4e4b\u524d\u6ca1\u89c1\u8fc7\uff0c\u53ef\u4ee5\u4e86\u89e3\u4e00\u4e0b\n    for idx,x in enumerate(nums):\n        total += x\n        right += 1\n        while total >= target:\n            total -= nums[left]\n            left += 1\n            print('last-min_len={}, sliding_window_len={}, left={}, right={}'.format(min_len, right-left+1,left,right))\n            min_len = min(min_len, right-left+1) #\u53f3\u8fb9\u51cf\u53bb\u5de6\u8fb9\u4e4b\u540e\u8981+1\n        # print(idx,x,left,right,total,target)\n\n    if min_len == float('inf'):\n        return 0\n    else:\n        return min_len\n\nprint(min_len_sub_array(target = 7, nums = [2,3,1,2,4,3]))\nprint(min_len_sub_array(target = 4, nums = [1,4,4]))\nprint(min_len_sub_array(target = 11, nums = [1,1,1,1,1,1,1,1]))\nprint(min_len_sub_array(target = 11, nums = [1,1,1,1,1,1,1,1,1,1,1]))<\/code><\/pre>\n\n\n\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n
    \n
  1. \u590d\u539f IP \u5730\u5740
    https:\/\/leetcode.cn\/problems\/restore-ip-addresses\/<\/a>
    https:\/\/programmercarl.com\/0093.%E5%A4%8D%E5%8E%9FIP%E5%9C%B0%E5%9D%80.html<\/a><\/li>\n\n\n\n
  2. \u957f\u5ea6\u6700\u5c0f\u7684\u5b50\u6570\u7ec4
    https:\/\/leetcode.cn\/problems\/minimum-size-subarray-sum\/<\/a>
    https:\/\/leetcode.cn\/problems\/minimum-size-subarray-sum\/solutions\/1180290\/acm-xuan-shou-tu-jie-chang-du-zui-xiao-d-ld9p\/<\/a>
    https:\/\/github.com\/youngyangyang04\/leetcode-master\/blob\/master\/problems\/0209.%E9%95%BF%E5%BA%A6%E6%9C%80%E5%B0%8F%E7%9A%84%E5%AD%90%E6%95%B0%E7%BB%84.md<\/a><\/li>\n\n\n\n
  3. \u6700\u5927\u4e3a N \u7684\u6570\u5b57\u7ec4\u5408
    https:\/\/leetcode.cn\/problems\/numbers-at-most-n-given-digit-set\/<\/a>
    https:\/\/leetcode.cn\/problems\/numbers-at-most-n-given-digit-set\/solutions\/1900101\/shu-wei-dp-tong-yong-mo-ban-xiang-xi-zhu-e5dg\/<\/a><\/li>\n<\/ol>\n\n\n\n
    Leetcode 902\uff1a\u6700\u5927\u4e3a N \u7684\u6570\u5b57\u7ec4\u5408\uff08\u8d85\u8be6\u7ec6\u7684\u89e3\u6cd5\uff01\uff01\uff01\uff09
    https:\/\/blog.csdn.net\/qq_17550379\/article\/details\/88657235<\/a>
    https:\/\/github.com\/luliyucoordinate\/Leetcode\/blob\/master\/src\/0902-Numbers-At-Most-N-Given-Digit-Set\/0902.py<\/a><\/p>\n\n\n\n
    \u5b57\u7b26\u4e32\u6bd4\u8f83
    https:\/\/github.com\/luliyucoordinate\/Leetcode\/blob\/master\/src\/0165-Compare-Version-Numbers\/0165.py<\/a><\/p>\n\n\n\n
      \n
    1. \u5355\u5b57\u7b26\u91cd\u590d\u5b50\u4e32\u7684\u6700\u5927\u957f\u5ea6
      https:\/\/leetcode.cn\/problems\/swap-for-longest-repeated-character-substring\/<\/a><\/li>\n<\/ol>\n\n\n\n
      Leetcode 1156\uff1a\u5355\u5b57\u7b26\u91cd\u590d\u5b50\u4e32\u7684\u6700\u5927\u957f\u5ea6\uff08\u8d85\u8be6\u7ec6\u7684\u89e3\u6cd5\uff01\uff01\uff01\uff09
      https:\/\/blog.csdn.net\/qq_17550379\/article\/details\/99319452<\/a>
      https:\/\/github.com\/luliyucoordinate\/Leetcode\/blob\/master\/src\/1156-Swap-For-Longest-Repeated-Character-Substring\/1156.py<\/a><\/p>\n\n\n\n
      What is the point of float(‘inf’) in Python?
      https:\/\/stackoverflow.com\/questions\/34264710\/what-is-the-point-of-floatinf-in-python<\/a><\/p>\n\n\n\n
      Python infinity
      https:\/\/www.geeksforgeeks.org\/python-infinity\/<\/a><\/p>\n\n\n\n
      =END=<\/p>\n","protected":false},"excerpt":{"rendered":"
      =Start= \u7f18\u7531\uff1a \u524d\u6bb5\u65f6\u95f4\u5728\u505a\u6821\u62db\u751f\u7684\u9762\u8bd5\u3002\u56e0\u4e3a\u5927\u90e8\u5206\u6821\u62db\u751f\u7684\u9879\u76ee\u7ecf\u5386\u4f1a\u6bd4\u8f83\u7b80\u5355\uff0c\u6240\u4ee5\u9664\u4e86\u8003\u5bdf\u6c9f\u901a\u8868\u8fbe\u80fd […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[2009,8,715,2010],"class_list":["post-5504","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-programing","tag-leetcode","tag-python","tag-715","tag-2010"],"views":872,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=5504"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5504\/revisions"}],"predecessor-version":[{"id":5505,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5504\/revisions\/5505"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=5504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=5504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=5504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}