mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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162 lines
15 KiB
JSON
162 lines
15 KiB
JSON
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"title": "Maximum Ice Cream Bars",
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"content": "<p>It is a sweltering summer day, and a boy wants to buy some ice cream bars.</p>\r\n\r\n<p>At the store, there are <code>n</code> ice cream bars. You are given an array <code>costs</code> of length <code>n</code>, where <code>costs[i]</code> is the price of the <code>i<sup>th</sup></code> ice cream bar in coins. The boy initially has <code>coins</code> coins to spend, and he wants to buy as many ice cream bars as possible. </p>\r\n\r\n<p>Return <em>the <strong>maximum</strong> number of ice cream bars the boy can buy with </em><code>coins</code><em> coins.</em></p>\r\n\r\n<p><strong>Note:</strong> The boy can buy the ice cream bars in any order.</p>\r\n\r\n<p> </p>\r\n<p><strong>Example 1:</strong></p>\r\n\r\n<pre>\r\n<strong>Input:</strong> costs = [1,3,2,4,1], coins = 7\r\n<strong>Output:</strong> 4\r\n<strong>Explanation: </strong>The boy can buy ice cream bars at indices 0,1,2,4 for a total price of 1 + 3 + 2 + 1 = 7.\r\n</pre>\r\n\r\n<p><strong>Example 2:</strong></p>\r\n\r\n<pre>\r\n<strong>Input:</strong> costs = [10,6,8,7,7,8], coins = 5\r\n<strong>Output:</strong> 0\r\n<strong>Explanation: </strong>The boy cannot afford any of the ice cream bars.\r\n</pre>\r\n\r\n<p><strong>Example 3:</strong></p>\r\n\r\n<pre>\r\n<strong>Input:</strong> costs = [1,6,3,1,2,5], coins = 20\r\n<strong>Output:</strong> 6\r\n<strong>Explanation: </strong>The boy can buy all the ice cream bars for a total price of 1 + 6 + 3 + 1 + 2 + 5 = 18.\r\n</pre>\r\n\r\n<p> </p>\r\n<p><strong>Constraints:</strong></p>\r\n\r\n<ul>\r\n\t<li><code>costs.length == n</code></li>\r\n\t<li><code>1 <= n <= 10<sup>5</sup></code></li>\r\n\t<li><code>1 <= costs[i] <= 10<sup>5</sup></code></li>\r\n\t<li><code>1 <= coins <= 10<sup>8</sup></code></li>\r\n</ul>",
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"It is always optimal to buy the least expensive ice cream bar first.",
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"Sort the prices so that the cheapest ice cream bar comes first."
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