<style> html, body, .ui-content { background: #222222; color: #00BFFF; } ::-webkit-scrollbar { width: 10px; } ::-webkit-scrollbar-track { background: transparent; } ::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #2BE8CF60 0%, #2B83E860 100%); border-radius: 3px; } ::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #2BE8CF95 0%, #2B83E895 100%); } /* 設定 code 模板 */ .markdown-body code, .markdown-body tt { background-color: #ffffff36; } .markdown-body .highlight pre, .markdown-body pre { color: #ddd; background-color: #00000036; } .hljs-tag { color: #ddd; } .token.operator { background-color: transparent; } </style> ###### tags: `Leetcode` # 1523. Count Odd Numbers in an Interval Range ###### Link : https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/ ## 題目 low和high之間有多少奇數 ## 程式碼 ```cpp= class Solution { public: int countOdds(int low, int high) { low & 1 ? : ++low; high & 1 ? : --high; return (high - low) / 2 + 1; } }; ```