{"id":1051,"date":"2023-03-24T09:47:07","date_gmt":"2023-03-24T01:47:07","guid":{"rendered":""},"modified":"2023-03-24T09:47:07","modified_gmt":"2023-03-24T01:47:07","slug":"Python \u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/1051.html","title":{"rendered":"Python \u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5"},"content":{"rendered":"


\n <\/head>
\n <\/p>\n

\n

Python \u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5<\/h1>\n

\u641e\u61c2Python \u65f6\u95f4\u590d\u6742\u5ea6\u548c\u7a7a\u95f4\u590d\u6742\u5ea6\u7684\u8f6c\u6362\u5173\u7cfb<\/span>\n <\/div>\n

\u7b97\u6cd5\u5b9a\u4e49<\/h2>\n
\n \u7b97\u6cd5\uff08Algorithm\uff09\u662f\u6307\u89e3\u9898\u65b9\u6848\u7684\u51c6\u786e\u800c\u5b8c\u6574\u7684\u63cf\u8ff0\uff0c\u662f\u4e00\u7cfb\u5217\u89e3\u51b3\u95ee\u9898\u7684\u6e05\u6670\u6307\u4ee4\uff0c\u7b97\u6cd5\u4ee3\u8868\u7740\u7528\u7cfb\u7edf\u7684\u65b9\u6cd5\u63cf\u8ff0\u89e3\u51b3\u95ee\u9898\u7684\u7b56\u7565\u673a\u5236\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u80fd\u591f\u5bf9\u4e00\u5b9a\u89c4\u8303\u7684\u8f93\u5165\uff0c\u5728\u6709\u9650\u65f6\u95f4\u5185\u83b7\u5f97\u6240\u8981\u6c42\u7684\u8f93\u51fa\u3002\u5982\u679c\u4e00\u4e2a\u7b97\u6cd5\u6709\u7f3a\u9677\uff0c\u6216\u4e0d\u9002\u5408\u4e8e\u67d0\u4e2a\u95ee\u9898\uff0c\u6267\u884c\u8fd9\u4e2a\u7b97\u6cd5\u5c06\u4e0d\u4f1a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u4e0d\u540c\u7684\u7b97\u6cd5\u53ef\u80fd\u7528\u4e0d\u540c\u7684\u65f6\u95f4\u3001\u7a7a\u95f4\u6216\u6548\u7387\u6765\u5b8c\u6210\u540c\u6837\u7684\u4efb\u52a1\u3002\u4e00\u4e2a\u7b97\u6cd5\u7684\u4f18\u52a3\u53ef\u4ee5\u7528\u7a7a\u95f4\u590d\u6742\u5ea6\u4e0e\u65f6\u95f4\u590d\u6742\u5ea6\u6765\u8861\u91cf\u3002
\n
\u4e00\u4e2a\u7b97\u6cd5\u5e94\u8be5\u5177\u6709\u4ee5\u4e0b\u4e03\u4e2a\u91cd\u8981\u7684\u7279\u5f81\uff1a\n <\/div>\n

\u6709\u7a77\u6027\uff08Finiteness\uff09\uff1a<\/b>\u7b97\u6cd5\u7684\u6709\u7a77\u6027\u662f\u6307\u7b97\u6cd5\u5fc5\u987b\u80fd\u5728\u6267\u884c\u6709\u9650\u4e2a\u6b65\u9aa4\u4e4b\u540e\u7ec8\u6b62\uff1b<\/span>
\n \u786e\u5207\u6027(Definiteness)\uff1a<\/b>\u7b97\u6cd5\u7684\u6bcf\u4e00\u6b65\u9aa4\u5fc5\u987b\u6709\u786e\u5207\u7684\u5b9a\u4e49\uff1b<\/span>
\n \u8f93\u5165\u9879(Input)\uff1a<\/b>\u4e00\u4e2a\u7b97\u6cd5\u67090\u4e2a\u6216\u591a\u4e2a\u8f93\u5165\uff0c\u4ee5\u523b\u753b\u8fd0\u7b97\u5bf9\u8c61\u7684\u521d\u59cb\u60c5\u51b5\uff0c\u6240\u8c130\u4e2a\u8f93\u5165\u662f\u6307\u7b97\u6cd5\u672c\u8eab\u5b9a\u51fa\u4e86\u521d\u59cb\u6761\u4ef6\uff1b<\/span>
\n \u8f93\u51fa\u9879(Output)\uff1a<\/b>\u4e00\u4e2a\u7b97\u6cd5\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u8f93\u51fa\uff0c\u4ee5\u53cd\u6620\u5bf9\u8f93\u5165\u6570\u636e\u52a0\u5de5\u540e\u7684\u7ed3\u679c\u3002\u6ca1\u6709\u8f93\u51fa\u7684\u7b97\u6cd5\u662f\u6beb\u65e0\u610f\u4e49\u7684\uff1b<\/span>
\n \u53ef\u884c\u6027(Effectiveness)\uff1a<\/b>\u7b97\u6cd5\u4e2d\u6267\u884c\u7684\u8ba1\u7b97\u6b65\u9aa4\u53ef\u4ee5\u5206\u89e3\u4e3a\u53ef\u6267\u884c\u7684\u64cd\u4f5c\u6b65\uff0c\u6bcf\u4e2a\u8ba1\u7b97\u6b65\u53ef\u4ee5\u5728\u6709\u9650\u65f6\u95f4\u5185\u5b8c\u6210\uff1b<\/span>
\n \u9ad8\u6548\u6027(High efficiency)\uff1a<\/b>\u6267\u884c\u901f\u5ea6\u5feb\uff0c\u5360\u7528\u8d44\u6e90\u5c11\uff1b<\/span>
\n \u5065\u58ee\u6027(Robustness)\uff1a<\/b>\u5bf9\u6570\u636e\u54cd\u5e94\u6b63\u786e\u3002 <\/span> <\/p>\n

\n \u8bc4\u4ef7\u7b97\u6cd5\u7684\u597d\u574f\u7528\u6e10\u8fd1\u65f6\u95f4\u590d\u6742\u5ea6\u548c\u6e10\u8fd1\u7a7a\u95f4\u590d\u6742\u5ea6\u3002\u6e10\u8fd1\u65f6\u95f4\u590d\u6742\u5ea6\u7684\u5927O\u6807\u8bb0\uff1a\n <\/div>\n

\u5e38\u91cf\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u5e03\u9686\u8fc7\u6ee4\u5668 \/ \u54c8\u5e0c\u5b58\u50a8<\/span>
\n \u5bf9\u6570\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u6298\u534a\u67e5\u627e\uff08\u4e8c\u5206\u67e5\u627e\uff09<\/span>
\n \u7ebf\u6027\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u987a\u5e8f\u67e5\u627e \/ \u8ba1\u6570\u6392\u5e8f<\/span>
\n \u5bf9\u6570\u7ebf\u6027\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u9ad8\u7ea7\u6392\u5e8f\u7b97\u6cd5\uff08\u5f52\u5e76\u6392\u5e8f\u3001\u5feb\u901f\u6392\u5e8f\uff09<\/span>
\n \u5e73\u65b9\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u7b80\u5355\u6392\u5e8f\u7b97\u6cd5\uff08\u9009\u62e9\u6392\u5e8f\u3001\u63d2\u5165\u6392\u5e8f\u3001\u5192\u6ce1\u6392\u5e8f\uff09<\/span>
\n \u7acb\u65b9\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>Floyd\u7b97\u6cd5 \/ \u77e9\u9635\u4e58\u6cd5\u8fd0\u7b97<\/span>
\n \u51e0\u4f55\u7ea7\u6570\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u6c49\u8bfa\u5854<\/span>
\n \u9636\u4e58\u65f6\u95f4\u590d\u6742\u5ea6\uff1a<\/b>\u65c5\u884c\u7ecf\u9500\u5546\u95ee\u9898 - NPC<\/span> <\/p>\n

\u6392\u5e8f\u7b97\u6cd5\uff08\u9009\u62e9\u3001\u5192\u6ce1\u548c\u5f52\u5e76\uff09\u548c\u67e5\u627e\u7b97\u6cd5\uff08\u987a\u5e8f\u548c\u6298\u534a)<\/h2>\n
\n
 def <\/span>select_sort(items, comp=lambda <\/span>x, y: x < y):
     \"\"<\/span><\/span>\"\u7b80\u5355\u9009\u62e9\u6392\u5e8f\"<\/span>\"\"
     items = items[:]
     for <\/span><\/span>i in <\/span>range(len(items) - 1):
         min_index = i
         for <\/span><\/span>j in <\/span>range(i + 1, len(items)):
             if <\/span>comp(items[j], items[min_index]):
                 min_index = j
         items[i], items[min_index] = items[min_index], items[i]
     return <\/span>items
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n
 def <\/span>bubble_sort(items, comp=lambda <\/span>x, y: x > y):
     \"\"<\/span><\/span>\"\u5192\u6ce1\u6392\u5e8f\"<\/span>\"\"
     items = items[:]
     for <\/span><\/span>i in <\/span>range(len(items) - 1):
         swapped = False<\/span>
         for <\/span><\/span>j in <\/span>range(len(items) - 1 - i):
             if <\/span>comp(items[j], items[j + 1]):
                 items[j], items[j + 1] = items[j + 1], items[j]
                 swapped = True<\/span>
         if <\/span>not <\/span>swapped:
             break<\/span>
     return <\/span>items
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n
 def <\/span>bubble_sort(items, comp=lambda <\/span>x, y: x > y):
     \"\"<\/span><\/span>\"\u6405\u62cc\u6392\u5e8f(\u5192\u6ce1\u6392\u5e8f\u5347\u7ea7\u7248)\"<\/span>\"\"
     items = items[:]
     for <\/span><\/span>i in <\/span>range(len(items) - 1):
         swapped = False<\/span>
         for <\/span><\/span>j in <\/span>range(len(items) - 1 - i):
             if <\/span>comp(items[j], items[j + 1]):
                 items[j], items[j + 1] = items[j + 1], items[j]
                 swapped = True<\/span>
         if <\/span>swapped:
             swapped = False<\/span>
             for <\/span><\/span>j in <\/span>range(len(items) - 2 - i, i, -1):
                 if <\/span>comp(items[j - 1], items[j]):
                     items[j], items[j - 1] = items[j - 1], items[j]
                     swapped = True<\/span>
         if <\/span>not <\/span>swapped:
             break<\/span>
     return <\/span>items
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n
 def <\/span>merge(items1, items2, comp=lambda <\/span>x, y: x < y):
     \"\"<\/span><\/span><\/span><\/span>\"\u5408\u5e76(\u5c06\u4e24\u4e2a\u6709\u5e8f\u7684\u5217\u8868\u5408\u5e76\u6210\u4e00\u4e2a\u6709\u5e8f\u7684\u5217\u8868)\"<\/span>\"\"
     items = []
     index1, index2 = 0, 0
     while <\/span>index1 < len(items1) and <\/span>index2 < len(items2):
         if <\/span>comp(items1[index1], items2[index2]):
             items.append<\/span>(items1[index1])
             index1 += 1
         else:<\/span>
             items.append<\/span>(items2[index2])
             index2 += 1
     items += items1[index1:]
     items += items2[index2:]
     return <\/span>items
 def <\/span>merge_sort(items, comp=lambda <\/span>x, y: x < y):
     return <\/span>_merge_sort(list(items), comp)
 def <\/span>_merge_sort(items, comp):
     \"\"\"\u5f52\u5e76\u6392\u5e8f\"<\/span>\"\"
     if <\/span>len(items) < 2:
         return <\/span>items
     mid = len(items) \/\/ 2
     left = _merge_sort(items[:mid], comp)
     right = _merge_sort(items[mid:], comp)
     return <\/span>merge(left, right, comp)
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n
 def <\/span>seq_search(items, key):
     \"\"<\/span><\/span>\"\u987a\u5e8f\u67e5\u627e\"<\/span>\"\"
     for <\/span><\/span>index, item in <\/span>enumerate(items):
         if <\/span>item == key:
             return <\/span>index
     return <\/span>-1
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n
 def <\/span>bin_search(items, key):
     \"\"<\/span><\/span>\"\u6298\u534a\u67e5\u627e\"<\/span>\"\"
     start, end = 0, len(items) - 1
     while <\/span>start <= end:
         mid = (start + end) \/\/ 2
         if <\/span>key > items[mid]:
             start = mid + 1
         elif <\/span><\/span>key < items[mid]:
             end = mid - 1
         else:<\/span>
             return <\/span>mid
     return <\/span>-1
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\u5e38\u7528\u7b97\u6cd5<\/h2>\n
  \u7a77\u4e3e\u6cd5 - <\/b>\u53c8\u79f0\u4e3a\u66b4\u529b\u6fc0\u6d3b\u6210\u529f\u6559\u7a0b\u6cd5\uff0c\u5bf9\u6240\u6709\u7684\u53ef\u80fd\u6027\u8fdb\u884c\u9a8c\u8bc1\uff0c\u76f4\u5230\u627e\u5230\u6b63\u786e\u7b54\u6848\u3002<\/span>
\n  \u8d2a\u5a6a\u6cd5 - <\/b>\u5728\u5bf9\u95ee\u9898\u6c42\u89e3\u65f6\uff0c\u603b\u662f\u505a\u51fa\u5728\u5f53\u524d\u770b\u6765\u6700\u597d\u7684\u9009\u62e9\uff0c\u4e0d\u8ffd\u6c42\u6700\u4f18\u89e3\uff0c\u5feb\u901f\u627e\u5230\u6ee1\u610f\u89e3\u3002<\/span>
\n  \u5206\u6cbb\u6cd5 - <\/b>\u628a\u4e00\u4e2a\u590d\u6742\u7684\u95ee\u9898\u5206\u6210\u66f4\u591a\u66f4\u5c0f\u7684\u5b50\u95ee\u9898\uff0c\u76f4\u5230\u53ef\u4ee5\u76f4\u63a5\u6c42\u89e3\u7684\u7a0b\u5ea6\uff0c\u6700\u540e\u5c06\u5b50\u95ee\u9898\u7684\u89e3\u8fdb\u884c\u5408\u5e76\u5f97\u5230\u539f\u95ee\u9898\u7684\u89e3\u3002<\/span>
\n  \u56de\u6eaf\u6cd5 - <\/b>\u56de\u6eaf\u6cd5\u53c8\u79f0\u4e3a\u8bd5\u63a2\u6cd5\uff0c\u6309\u9009\u4f18\u6761\u4ef6\u5411\u524d\u641c\u7d22\uff0c\u5f53\u641c\u7d22\u5230\u67d0\u4e00\u6b65\u53d1\u73b0\u539f\u5148\u9009\u62e9\u5e76\u4e0d\u4f18\u6216\u8fbe\u4e0d\u5230\u76ee\u6807\u65f6\uff0c\u5c31\u9000\u56de\u4e00\u6b65\u91cd\u65b0\u9009\u62e9\u3002<\/span>
\n  \u52a8\u6001\u89c4\u5212 -<\/b> \u57fa\u672c\u601d\u60f3\u4e5f\u662f\u5c06\u5f85\u6c42\u89e3\u95ee\u9898\u5206\u89e3\u6210\u82e5\u5e72\u4e2a\u5b50\u95ee\u9898\uff0c\u5148\u6c42\u89e3\u5e76\u4fdd\u5b58\u8fd9\u4e9b\u5b50\u95ee\u9898\u7684\u89e3\uff0c\u907f\u514d\u4ea7\u751f\u5927\u91cf\u7684\u91cd\u590d\u8fd0\u7b97\u3002<\/span> <\/p>\n
\u7a77\u4e3e\u6cd5 - \u4e94\u4eba\u5206\u9c7c<\/h3>\n
\n
 # \u516c\u9e215\u5143\u4e00\u53ea \u6bcd\u9e213\u5143\u4e00\u53ea \u5c0f\u9e211\u5143\u4e09\u53ea
<\/span> # \u7528100\u5143\u4e70100\u53ea\u9e21 \u95ee\u516c\u9e21\/\u6bcd\u9e21\/\u5c0f\u9e21\u5404\u591a\u5c11\u53ea
<\/span> for <\/span><\/span>x in <\/span>range(20):
     for <\/span><\/span>y in <\/span>range(33):
         z = 100 - x - y
         if <\/span>5 * x + 3 * y + z \/\/ 3 == 100 and <\/span>z % 3 == 0:
             print(x, y, z)
 # A\u3001B\u3001C\u3001D\u3001E\u4e94\u4eba\u5728\u67d0\u5929\u591c\u91cc\u5408\u4f19\u6355\u9c7c \u6700\u540e\u75b2\u60eb\u4e0d\u582a\u5404\u81ea\u7761\u89c9
<\/span> # \u7b2c\u4e8c\u5929A\u7b2c\u4e00\u4e2a\u9192\u6765 \u4ed6\u5c06\u9c7c\u5206\u4e3a5\u4efd \u6254\u6389\u591a\u4f59\u76841\u6761 \u62ff\u8d70\u81ea\u5df1\u7684\u4e00\u4efd
<\/span> # B\u7b2c\u4e8c\u4e2a\u9192\u6765 \u4e5f\u5c06\u9c7c\u5206\u4e3a5\u4efd \u6254\u6389\u591a\u4f59\u76841\u6761 \u62ff\u8d70\u81ea\u5df1\u7684\u4e00\u4efd
<\/span> # \u7136\u540eC\u3001D\u3001E\u4f9d\u6b21\u9192\u6765\u4e5f\u6309\u540c\u6837\u7684\u65b9\u5f0f\u5206\u9c7c \u95ee\u4ed6\u4eec\u81f3\u5c11\u6355\u4e86\u591a\u5c11\u6761\u9c7c
<\/span> fish = 6
 while True<\/span>:
     total = fish
     enough = True<\/span>
     for <\/span><\/span>_ in <\/span>range(5):
         if <\/span>(total - 1) % 5 == 0:
             total = (total - 1) \/\/ 5 * 4
         else:<\/span>
             enough = False<\/span>
             break<\/span>
     if <\/span>enough:
         print(fish)
         break<\/span>
     fish += 5
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\u8d2a\u5a6a\u6cd5<\/h3>\n
\n    \u5047\u8bbe\u5c0f\u5077\u6709\u4e00\u4e2a\u80cc\u5305\uff0c\u6700\u591a\u80fd\u88c520\u516c\u65a4\u8d43\u7269\uff0c\u4ed6\u95ef\u5165\u4e00\u6237\u4eba\u5bb6\uff0c\u53d1\u73b0\u5982\u4e0b\u8868\u6240\u793a\u7684\u7269\u54c1\u3002\u5f88\u663e\u7136\uff0c\u4ed6\u4e0d\u80fd\u628a\u6240\u6709\u7269\u54c1\u90fd\u88c5\u8fdb\u80cc\u5305\uff0c\u6240\u4ee5\u5fc5\u987b\u786e\u5b9a\u62ff\u8d70\u54ea\u4e9b\u7269\u54c1\uff0c\u7559\u4e0b\u54ea\u4e9b\u7269\u54c1\u3002\n  <\/div>\n\n\n\n\n\n\n\n\n\n
\u540d\u79f0<\/td>\n\u4ef7\u683c\uff08\u7f8e\u5143\uff09<\/td>\n\u91cd\u91cf\uff08kg\uff09<\/td>\n<\/tr>\n
\u7535\u8111<\/td>\n200<\/td>\n20<\/td>\n<\/tr>\n
\u6536\u97f3\u673a<\/td>\n20<\/td>\n4<\/td>\n<\/tr>\n
\u949f<\/td>\n175<\/td>\n10<\/td>\n<\/tr>\n
\u82b1\u74f6<\/td>\n50<\/td>\n2<\/td>\n<\/tr>\n
\u4e66<\/td>\n10<\/td>\n1<\/td>\n<\/tr>\n
\u6cb9\u753b<\/td>\n90<\/td>\n9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
 \"\"<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\"
 \u8d2a\u5a6a\u6cd5\uff1a\u5728\u5bf9\u95ee\u9898\u6c42\u89e3\u65f6\uff0c\u603b\u662f\u505a\u51fa\u5728\u5f53\u524d\u770b\u6765\u662f\u6700\u597d\u7684\u9009\u62e9\uff0c\u4e0d\u8ffd\u6c42\u6700\u4f18\u89e3\uff0c\u5feb\u901f\u627e\u5230\u6ee1\u610f\u89e3\u3002
 \u8f93\u5165\uff1a
 20 6
 \u7535\u8111 200 20
 \u6536\u97f3\u673a 20 4
 \u949f 175 10
 \u82b1\u74f6 50 2
 \u4e66 10 1
 \u6cb9\u753b 90 9
 \"\"\"
 class <\/span>Thing(object):
     \"\"\"\u7269\u54c1\"<\/span>\"\"
     def <\/span>__init__(self, name, price, weight):
         self.name = name
         self.price = price
         self.weight = weight
     @property
     def <\/span>value(self):
         \"\"\"\u4ef7\u683c\u91cd\u91cf\u6bd4\"<\/span>\"\"
         return <\/span>self.price \/ self.weight
 def <\/span>input_thing():
     \"\"\"\u8f93\u5165\u7269\u54c1\u4fe1\u606f\"<\/span>\"\"
     name_str, price_str, weight_str = input().split<\/span>()
     return <\/span>name_str, int(price_str), int(weight_str)
 def <\/span>main():
     \"\"\"\u4e3b\u51fd\u6570\"<\/span>\"\"
     max_weight, num_of_things = map(int, input().split<\/span>())
     all_things = []
     for <\/span><\/span>_ in <\/span>range(num_of_things):
         all_things.append<\/span>(Thing(*input_thing()))
     all_things.sort<\/span>(key=lambda <\/span>x: x.value, reverse=True)
     total_weight = 0
     total_price = 0
     for <\/span><\/span>thing in <\/span>all_things:
         if <\/span>total_weight + thing.weight <= max_weight:
             print(f'\u5c0f\u5077\u62ff\u8d70\u4e86{thing.name}'<\/span>)
             total_weight += thing.weight
             total_price += thing.price
     print(f'\u603b\u4ef7\u503c: {total_price}\u7f8e\u5143'<\/span>)
 if <\/span>__name__ == '__main__'<\/span>:
     main()
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\u5206\u6cbb\u6cd5 - \u5feb\u901f\u6392\u5e8f<\/h3>\n
\n
 \"\"<\/span><\/span>\"
 \u5feb\u901f\u6392\u5e8f - \u9009\u62e9\u67a2\u8f74\u5bf9\u5143\u7d20\u8fdb\u884c\u5212\u5206\uff0c\u5de6\u8fb9\u90fd\u6bd4\u67a2\u8f74\u5c0f\u53f3\u8fb9\u90fd\u6bd4\u67a2\u8f74\u5927
 \"\"\"
 def <\/span>quick_sort(items, comp=lambda <\/span>x, y: x <= y):
     items = list(items)[:]
     _quick_sort(items, 0, len(items) - 1, comp)
     return <\/span>items
 def <\/span>_quick_sort(items, start, end, comp):
     if <\/span>start < end:
         pos = _partition(items, start, end, comp)
         _quick_sort(items, start, pos - 1, comp)
         _quick_sort(items, pos + 1, end, comp)
 def <\/span>_partition(items, start, end, comp):
     pivot = items[end]
     i = start - 1
     for <\/span><\/span>j in <\/span>range(start, end):
         if <\/span>comp(items[j], pivot):
             i += 1
             items[i], items[j] = items[j], items[i]
     items[i + 1], items[end] = items[end], items[i + 1]
     return <\/span>i + 1
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\u56de\u6eaf\u6cd5 - \u9a91\u58eb\u5de1\u903b\u3002<\/h3>\n
\n
 \"\"<\/span><\/span>\"
 \u9012\u5f52\u56de\u6eaf\u6cd5\uff1a\u53eb\u79f0\u4e3a\u8bd5\u63a2\u6cd5\uff0c\u6309\u9009\u4f18\u6761\u4ef6\u5411\u524d\u641c\u7d22\uff0c\u5f53\u641c\u7d22\u5230\u67d0\u4e00\u6b65\uff0c\u53d1\u73b0\u539f\u5148\u9009\u62e9\u5e76\u4e0d\u4f18\u6216\u8fbe\u4e0d\u5230\u76ee\u6807\u65f6\uff0c\u5c31\u9000\u56de\u4e00\u6b65\u91cd\u65b0\u9009\u62e9\uff0c\u6bd4\u8f83\u7ecf\u5178\u7684\u95ee\u9898\u5305\u62ec\u9a91\u58eb\u5de1\u903b\u3001\u516b\u7687\u540e\u548c\u8ff7\u5bab\u5bfb\u8def\u7b49\u3002
 \"\"\"
 import <\/span>sys
 import <\/span>time
 SIZE = 5
 total = 0
 def <\/span>print_board(board):
     for <\/span><\/span>row in <\/span>board:
         for <\/span><\/span>col in <\/span>row:
             print(str(col).center<\/span>(4), end=''<\/span>)
         print()
 def <\/span>patrol(board, row, col, step=1):
     if <\/span>row >= 0 and <\/span>row < SIZE and <\/span>\\
         col >= 0 and <\/span>col < SIZE and <\/span>\\
         board[row][col] == 0:
         board[row][col] = step
         if <\/span>step == SIZE * SIZE:
             global<\/span> total
             total += 1
             print(f'\u7b2c{total}\u79cd\u8d70\u6cd5: '<\/span>)
             print_board(board)
         patrol(board, row - 2, col - 1, step + 1)
         patrol(board, row - 1, col - 2, step + 1)
         patrol(board, row + 1, col - 2, step + 1)
         patrol(board, row + 2, col - 1, step + 1)
         patrol(board, row + 2, col + 1, step + 1)
         patrol(board, row + 1, col + 2, step + 1)
         patrol(board, row - 1, col + 2, step + 1)
         patrol(board, row - 2, col + 1, step + 1)
         board[row][col] = 0
 def <\/span>main():
     board = [[0] * SIZE for <\/span><\/span>_ in <\/span>range(SIZE)]
     patrol(board, SIZE - 1, SIZE - 1)
 if <\/span>__name__ == '__main__'<\/span>:
     main()
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\u52a8\u6001\u89c4\u5212 - \u5b50\u5217\u8868\u5143\u7d20\u4e4b\u548c\u7684\u6700\u5927\u503c<\/h3>\n
\n    \u8bf4\u660e\uff1a\u5b50\u5217\u8868\u6307\u7684\u662f\u5217\u8868\u4e2d\u7d22\u5f15\uff08\u4e0b\u6807\uff09\u8fde\u7eed\u7684\u5143\u7d20\u6784\u6210\u7684\u5217\u8868\uff1b\u5217\u8868\u4e2d\u7684\u5143\u7d20\u662fint\u7c7b\u578b\uff0c\u53ef\u80fd\u5305\u542b\u6b63\u6574\u6570\u30010\u3001\u8d1f\u6574\u6570\uff1b\u7a0b\u5e8f\u8f93\u5165\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u8f93\u51fa\u5b50\u5217\u8868\u5143\u7d20\u6c42\u548c\u7684\u6700\u5927\u503c\uff0c\u4f8b\u5982\uff1a
\n   
 \u8f93\u5165\uff1a1 -2 3 5 -3 2
\n   
 \u8f93\u51fa\uff1a8
\n   
 \u8f93\u5165\uff1a0 -2 3 5 -1 2
\n   
 \u8f93\u51fa\uff1a9
\n   
 \u8f93\u5165\uff1a-9 -2 -3 -5 -3
\n   
 \u8f93\u51fa\uff1a-2\n  <\/div>\n
\n
 def <\/span>main():
     items = list(map(int, input().split<\/span>()))
     overall = partial = items[0]
     for <\/span><\/span>i in <\/span>range(1, len(items)):
         partial = max(items[i], partial + items[i])
         overall = max(partial, overall)
     print(overall)
 if <\/span>__name__ == '__main__'<\/span>:
     main()
 <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u8bf4\u660e\uff1a\u8fd9\u4e2a\u9898\u76ee\u6700\u5bb9\u6613\u60f3\u5230\u7684\u89e3\u6cd5\u662f\u4f7f\u7528\u4e8c\u91cd\u5faa\u73af\uff0c\u4f46\u662f\u4ee3\u7801\u7684\u65f6\u95f4\u6027\u80fd\u5c06\u4f1a\u53d8\u5f97\u975e\u5e38\u7684\u7cdf\u7cd5\u3002\u4f7f\u7528\u52a8\u6001\u89c4\u5212\u7684\u601d\u60f3\uff0c\u4ec5\u4ec5\u662f\u591a\u7528\u4e86\u4e24\u4e2a\u53d8\u91cf\uff0c\u5c31\u5c06\u539f\u6765$O(N^2)$\u590d\u6742\u5ea6\u7684\u95ee\u9898\u53d8\u6210\u4e86$O(N)$\u3002\n  <\/div>\n
 <\/body>
\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Python \u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[126],"tags":[],"class_list":["post-1051","post","type-post","status-publish","format-standard","hentry","category-python3"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/1051"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=1051"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/1051\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=1051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=1051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=1051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}