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"title": "Form Largest Integer With Digits That Add up to Target",
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"content": "<p>Given an array of integers <code>cost</code> and an integer <code>target</code>, return <em>the <strong>maximum</strong> integer you can paint under the following rules</em>:</p>\n\n<ul>\n\t<li>The cost of painting a digit <code>(i + 1)</code> is given by <code>cost[i]</code> (<strong>0-indexed</strong>).</li>\n\t<li>The total cost used must be equal to <code>target</code>.</li>\n\t<li>The integer does not have <code>0</code> digits.</li>\n</ul>\n\n<p>Since the answer may be very large, return it as a string. If there is no way to paint any integer given the condition, return <code>"0"</code>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> cost = [4,3,2,5,6,7,2,5,5], target = 9\n<strong>Output:</strong> "7772"\n<strong>Explanation:</strong> The cost to paint the digit '7' is 2, and the digit '2' is 3. Then cost("7772") = 2*3+ 3*1 = 9. You could also paint "977", but "7772" is the largest number.\n<strong>Digit cost</strong>\n 1 -> 4\n 2 -> 3\n 3 -> 2\n 4 -> 5\n 5 -> 6\n 6 -> 7\n 7 -> 2\n 8 -> 5\n 9 -> 5\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> cost = [7,6,5,5,5,6,8,7,8], target = 12\n<strong>Output:</strong> "85"\n<strong>Explanation:</strong> The cost to paint the digit '8' is 7, and the digit '5' is 5. Then cost("85") = 7 + 5 = 12.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> cost = [2,4,6,2,4,6,4,4,4], target = 5\n<strong>Output:</strong> "0"\n<strong>Explanation:</strong> It is impossible to paint any integer with total cost equal to target.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>cost.length == 9</code></li>\n\t<li><code>1 <= cost[i], target <= 5000</code></li>\n</ul>\n",
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"code": "class Solution {\npublic:\n string largestNumber(vector<int>& cost, int target) {\n \n }\n};",
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"code": "class Solution(object):\n def largestNumber(self, cost, target):\n \"\"\"\n :type cost: List[int]\n :type target: int\n :rtype: str\n \"\"\"\n ",
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"code": "/**\n * @param {number[]} cost\n * @param {number} target\n * @return {string}\n */\nvar largestNumber = function(cost, target) {\n \n};",
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"code": "# @param {Integer[]} cost\n# @param {Integer} target\n# @return {String}\ndef largest_number(cost, target)\n \nend",
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"code": "impl Solution {\n pub fn largest_number(cost: Vec<i32>, target: i32) -> String {\n \n }\n}",
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"code": "class Solution {\n\n /**\n * @param Integer[] $cost\n * @param Integer $target\n * @return String\n */\n function largestNumber($cost, $target) {\n \n }\n}",
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"code": "(define/contract (largest-number cost target)\n (-> (listof exact-integer?) exact-integer? string?)\n\n )",
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