{"id":831,"date":"2020-12-10T14:05:25","date_gmt":"2020-12-10T06:05:25","guid":{"rendered":"http:\/\/39.96.58.60\/?p=831"},"modified":"2022-10-18T16:37:12","modified_gmt":"2022-10-18T08:37:12","slug":"leetcode-860-%e6%9f%a0%e6%aa%ac%e6%b0%b4%e6%89%be%e9%9b%b6","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=831","title":{"rendered":"Leetcode 860. \u67e0\u6aac\u6c34\u627e\u96f6"},"content":{"rendered":"<p>\u5728\u67e0\u6aac\u6c34\u644a\u4e0a\uff0c\u6bcf\u4e00\u676f\u67e0\u6aac\u6c34\u7684\u552e\u4ef7\u4e3a&nbsp;<code>5<\/code>&nbsp;\u7f8e\u5143\u3002<\/p>\n<p>\u987e\u5ba2\u6392\u961f\u8d2d\u4e70\u4f60\u7684\u4ea7\u54c1\uff0c\uff08\u6309\u8d26\u5355 <code>bills<\/code> \u652f\u4ed8\u7684\u987a\u5e8f\uff09\u4e00\u6b21\u8d2d\u4e70\u4e00\u676f\u3002<\/p>\n<p>\u6bcf\u4f4d\u987e\u5ba2\u53ea\u4e70\u4e00\u676f\u67e0\u6aac\u6c34\uff0c\u7136\u540e\u5411\u4f60\u4ed8 <code>5<\/code> \u7f8e\u5143\u3001<code>10<\/code> \u7f8e\u5143\u6216 <code>20<\/code> \u7f8e\u5143\u3002\u4f60\u5fc5\u987b\u7ed9\u6bcf\u4e2a\u987e\u5ba2\u6b63\u786e\u627e\u96f6\uff0c\u4e5f\u5c31\u662f\u8bf4\u51c0\u4ea4\u6613\u662f\u6bcf\u4f4d\u987e\u5ba2\u5411\u4f60\u652f\u4ed8 <code>5<\/code> \u7f8e\u5143\u3002<\/p>\n<p>\u6ce8\u610f\uff0c\u4e00\u5f00\u59cb\u4f60\u624b\u5934\u6ca1\u6709\u4efb\u4f55\u96f6\u94b1\u3002<\/p>\n<p>\u5982\u679c\u4f60\u80fd\u7ed9\u6bcf\u4f4d\u987e\u5ba2\u6b63\u786e\u627e\u96f6\uff0c\u8fd4\u56de&nbsp;<code>true<\/code>&nbsp;\uff0c\u5426\u5219\u8fd4\u56de <code>false<\/code>&nbsp;\u3002<\/p>\n<p><strong>\u793a\u4f8b 1\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[5,5,5,10,20]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>true\n\n<strong>\u89e3\u91ca\uff1a\n\n<\/strong>\u524d 3 \u4f4d\u987e\u5ba2\u90a3\u91cc\uff0c\u6211\u4eec\u6309\u987a\u5e8f\u6536\u53d6 3 \u5f20 5 \u7f8e\u5143\u7684\u949e\u7968\u3002\n\n\u7b2c 4 \u4f4d\u987e\u5ba2\u90a3\u91cc\uff0c\u6211\u4eec\u6536\u53d6\u4e00\u5f20 10 \u7f8e\u5143\u7684\u949e\u7968\uff0c\u5e76\u8fd4\u8fd8 5 \u7f8e\u5143\u3002\n\n\u7b2c 5 \u4f4d\u987e\u5ba2\u90a3\u91cc\uff0c\u6211\u4eec\u627e\u8fd8\u4e00\u5f20 10 \u7f8e\u5143\u7684\u949e\u7968\u548c\u4e00\u5f20 5 \u7f8e\u5143\u7684\u949e\u7968\u3002\n\n\u7531\u4e8e\u6240\u6709\u5ba2\u6237\u90fd\u5f97\u5230\u4e86\u6b63\u786e\u7684\u627e\u96f6\uff0c\u6240\u4ee5\u6211\u4eec\u8f93\u51fa true\u3002\n\n<\/pre>\n<p><strong>\u793a\u4f8b 2\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[5,5,10]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>true\n\n<\/pre>\n<p><strong>\u793a\u4f8b 3\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[10,10]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>false\n\n<\/pre>\n<p><strong>\u793a\u4f8b 4\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[5,5,10,10,20]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>false\n\n<strong>\u89e3\u91ca\uff1a<\/strong>\n\n\u524d 2 \u4f4d\u987e\u5ba2\u90a3\u91cc\uff0c\u6211\u4eec\u6309\u987a\u5e8f\u6536\u53d6 2 \u5f20 5 \u7f8e\u5143\u7684\u949e\u7968\u3002\n\n\u5bf9\u4e8e\u63a5\u4e0b\u6765\u7684 2 \u4f4d\u987e\u5ba2\uff0c\u6211\u4eec\u6536\u53d6\u4e00\u5f20 10 \u7f8e\u5143\u7684\u949e\u7968\uff0c\u7136\u540e\u8fd4\u8fd8 5 \u7f8e\u5143\u3002\n\n\u5bf9\u4e8e\u6700\u540e\u4e00\u4f4d\u987e\u5ba2\uff0c\u6211\u4eec\u65e0\u6cd5\u9000\u56de 15 \u7f8e\u5143\uff0c\u56e0\u4e3a\u6211\u4eec\u73b0\u5728\u53ea\u6709\u4e24\u5f20 10 \u7f8e\u5143\u7684\u949e\u7968\u3002\n\n\u7531\u4e8e\u4e0d\u662f\u6bcf\u4f4d\u987e\u5ba2\u90fd\u5f97\u5230\u4e86\u6b63\u786e\u7684\u627e\u96f6\uff0c\u6240\u4ee5\u7b54\u6848\u662f false\u3002\n\n<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>\u63d0\u793a\uff1a<\/strong><\/p>\n<ul>\n<li><code>0 &lt;= bills.length &lt;= 10000<\/code><\/li>\n<li><code>bills[i]<\/code>&nbsp;\u4e0d\u662f&nbsp;<code>5<\/code>&nbsp;\u5c31\u662f&nbsp;<code>10<\/code>&nbsp;\u6216\u662f&nbsp;<code>20<\/code>&nbsp;<\/li>\n<\/ul>\n<p>**\u96be\u5ea6**: Easy<\/p>\n<p>**\u6807\u7b7e**: \u8d2a\u5fc3\u7b97\u6cd5\u3001<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-python\" data-lang=\"Python\"><code>\n# -*- coding: utf-8 -*-\n# @Author  : LG\n\n\"\"\"\n\u6267\u884c\u7528\u65f6\uff1a152 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8696.83% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a14 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8612.45% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u89c1\u4ee3\u7801\u6ce8\u91ca\n\"\"\"\nclass Solution:\n    def lemonadeChange(self, bills: List[int]) -&gt; bool:\n        five = ten = 0  # 5\u514310\u5143\u521d\u59cb\u54040\u4e2a\n        for bill in bills:\n            if bill == 20:  # \u5bf9\u4e8e20\uff0c\u6709\u4e24\u79cd\u627e\u96f6\u65b9\u5f0f\n                if five &gt; 0 and ten &gt; 0:    # \u4e00\u5f205\u4e00\u5f2010\n                    five -= 1\n                    ten -= 1\n                elif five &gt; 2:  # \u6216\u8005 \u4e09\u5f205\n                    five -= 3\n                else:           # \u5176\u4f59\u60c5\u51b5\u627e\u4e0d\u5f00\n                    return False\n            elif bill == 10 and five &gt; 0:   # \u5bf9\u4e8e10\uff0c \u53ea\u80fd\u627e\u96f6\u4e00\u5f205\n                five -= 1\n                ten += 1\n            elif bill == 5: # 5\u5143\u4e0d\u7528\u627e\u96f6\n                five += 1\n            else:\n                return False\n        return True\n<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u67e0\u6aac\u6c34\u644a\u4e0a\uff0c\u6bcf\u4e00\u676f\u67e0\u6aac\u6c34\u7684\u552e\u4ef7\u4e3a&nbsp;5&nbsp;\u7f8e\u5143\u3002 \u987e\u5ba2\u6392\u961f\u8d2d\u4e70\u4f60\u7684\u4ea7\u54c1\uff0c\uff08\u6309\u8d26\u5355 bills&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/831"}],"collection":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=831"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions"}],"predecessor-version":[{"id":832,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions\/832"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=831"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}