8.4 Weex 双11会场大规模应用的秒开实战和稳定性保障 前言 Native 开发的诸多亮点中,流畅体验和系统调用是最多被提及的.流畅体验体现在页面滚动/动画的流畅性,背后是更好的内存管理和更接近原生的性能:同时又是 Web 的痛点:资源首次下载.长页面内存溢出和滚动性能.动画性能.传统 web 性能(如JS执行效率).Native 有丰富的系统调用能力,而 Web 痛点在于:W3C 标准太慢,有限的设备访问能力,API 兼容性问题较严重,如 Geolocation 在 Android We
1042 Shuffling Machine (20 分) Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing
1140 Look-and-say Sequence(20 分)Look-and-say sequence is a sequence of integers as the following: D, D1, D111, D113, D11231, D112213111, ... where D is in [0, 9] except 1. The (n+1)st number is a kind of description of the nth number. For example, th
1042 Shuffling Machine(20 分) Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing