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leetcode-problemset/leetcode-cn/originData/count-integers-with-even-digit-sum.json
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"data": {
"question": {
"questionId": "2298",
"questionFrontendId": "2180",
"categoryTitle": "Algorithms",
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"title": "Count Integers With Even Digit Sum",
"titleSlug": "count-integers-with-even-digit-sum",
"content": "<p>Given a positive integer <code>num</code>, return <em>the number of positive integers <strong>less than or equal to</strong></em> <code>num</code> <em>whose digit sums are <strong>even</strong></em>.</p>\n\n<p>The <strong>digit sum</strong> of a positive integer is the sum of all its digits.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 4\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nThe only integers less than or equal to 4 whose digit sums are even are 2 and 4. \n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 30\n<strong>Output:</strong> 14\n<strong>Explanation:</strong>\nThe 14 integers less than or equal to 30 whose digit sums are even are\n2, 4, 6, 8, 11, 13, 15, 17, 19, 20, 22, 24, 26, and 28.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= num &lt;= 1000</code></li>\n</ul>\n",
"translatedTitle": "统计各位数字之和为偶数的整数个数",
"translatedContent": "<p>给你一个正整数 <code>num</code> ,请你统计并返回 <strong>小于或等于</strong> <code>num</code> 且各位数字之和为 <strong>偶数</strong> 的正整数的数目。</p>\n\n<p>正整数的 <strong>各位数字之和</strong> 是其所有位上的对应数字相加的结果。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1</strong></p>\n\n<pre>\n<strong>输入:</strong>num = 4\n<strong>输出:</strong>2\n<strong>解释:</strong>\n只有 2 和 4 满足小于等于 4 且各位数字之和为偶数。 \n</pre>\n\n<p><strong>示例 2</strong></p>\n\n<pre>\n<strong>输入:</strong>num = 30\n<strong>输出:</strong>14\n<strong>解释:</strong>\n只有 14 个整数满足小于等于 30 且各位数字之和为偶数,分别是: \n2、4、6、8、11、13、15、17、19、20、22、24、26 和 28 。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= num &lt;= 1000</code></li>\n</ul>\n",
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