leetcode-problemset/leetcode-cn/originData/lemonade-change.json

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            "title": "Lemonade Change",
            "titleSlug": "lemonade-change",
            "content": "<p>At a lemonade stand, each lemonade costs <code>$5</code>. Customers are standing in a queue to buy from you and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a <code>$5</code>, <code>$10</code>, or <code>$20</code> bill. You must provide the correct change to each customer so that the net transaction is that the customer pays <code>$5</code>.</p>\n\n<p>Note that you do not have any change in hand at first.</p>\n\n<p>Given an integer array <code>bills</code> where <code>bills[i]</code> is the bill the <code>i<sup>th</sup></code> customer pays, return <code>true</code> <em>if you can provide every customer with the correct change, or</em> <code>false</code> <em>otherwise</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> bills = [5,5,5,10,20]\n<strong>Output:</strong> true\n<strong>Explanation:</strong> \nFrom the first 3 customers, we collect three $5 bills in order.\nFrom the fourth customer, we collect a $10 bill and give back a $5.\nFrom the fifth customer, we give a $10 bill and a $5 bill.\nSince all customers got correct change, we output true.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> bills = [5,5,10,10,20]\n<strong>Output:</strong> false\n<strong>Explanation:</strong> \nFrom the first two customers in order, we collect two $5 bills.\nFor the next two customers in order, we collect a $10 bill and give back a $5 bill.\nFor the last customer, we can not give the change of $15 back because we only have two $10 bills.\nSince not every customer received the correct change, the answer is false.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= bills.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>bills[i]</code> is either <code>5</code>, <code>10</code>, or <code>20</code>.</li>\n</ul>\n",
            "translatedTitle": "柠檬水找零",
            "translatedContent": "<p>在柠檬水摊上，每一杯柠檬水的售价为&nbsp;<code>5</code>&nbsp;美元。顾客排队购买你的产品，（按账单 <code>bills</code> 支付的顺序）一次购买一杯。</p>\n\n<p>每位顾客只买一杯柠檬水，然后向你付 <code>5</code> 美元、<code>10</code> 美元或 <code>20</code> 美元。你必须给每个顾客正确找零，也就是说净交易是每位顾客向你支付 <code>5</code> 美元。</p>\n\n<p>注意，一开始你手头没有任何零钱。</p>\n\n<p>给你一个整数数组 <code>bills</code> ，其中 <code>bills[i]</code> 是第 <code>i</code> 位顾客付的账。如果你能给每位顾客正确找零，返回&nbsp;<code>true</code>&nbsp;，否则返回 <code>false</code>&nbsp;。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>bills = [5,5,5,10,20]\n<strong>输出：</strong>true\n<strong>解释：\n</strong>前 3 位顾客那里，我们按顺序收取 3 张 5 美元的钞票。\n第 4 位顾客那里，我们收取一张 10 美元的钞票，并返还 5 美元。\n第 5 位顾客那里，我们找还一张 10 美元的钞票和一张 5 美元的钞票。\n由于所有客户都得到了正确的找零，所以我们输出 true。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>bills = [5,5,10,10,20]\n<strong>输出：</strong>false\n<strong>解释：</strong>\n前 2 位顾客那里，我们按顺序收取 2 张 5 美元的钞票。\n对于接下来的 2 位顾客，我们收取一张 10 美元的钞票，然后返还 5 美元。\n对于最后一位顾客，我们无法退回 15 美元，因为我们现在只有两张 10 美元的钞票。\n由于不是每位顾客都得到了正确的找零，所以答案是 false。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= bills.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>bills[i]</code>&nbsp;不是&nbsp;<code>5</code>&nbsp;就是&nbsp;<code>10</code>&nbsp;或是&nbsp;<code>20</code>&nbsp;</li>\n</ul>\n",
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