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From January 2015, she started to practice leetcode questions; she trains herself to stay focus, develops "muscle" memory when she practices those questions one by one. 2015年初, Julia开始参与做Leetcode, 开通自己第一个博客. 刷Leet code的题目, 她看了很多的代码, 每个人那学一点, 也开通Github, 发表自己的代码, 尝试写自己的一些体会. She learns from her favorite sports – tennis, 10,000 serves practice builds up good memory for a great serve. Just keep going. Hard work beats talent when talent fails to work hard.
Here is the link.
美国四大科技公司4月29日一齐发布财报,证实他们在人工智能(AI)方面的资本支出,达到了前所未见的成长。这四家公司上季总计花费1,306.5亿美元资本支出,并计划今年花费近7,000亿美元。而他们的获利也显示其押注正获得回报;Google母公司字母上季获利跃增81%,亚马逊AWS也写下15季来最快成长。
What Happened?
Shares of cloud security platform Zscaler ZS jumped 2.5% in the morning session after strong earnings and upbeat forecasts from several peers boosted the broader software sector.
The gains appeared driven by positive sentiment across the software-as-a-service (SaaS) space. For instance, enterprise software maker Atlassian saw its shares surge after lifting its annual forecast, which in turn lifted peers like Salesforce and ServiceNow.
Similarly, Twilio's stock jumped after it reported first-quarter revenue that beat estimates and raised its own forecast, with its CEO highlighting artificial intelligence as a catalyst. This positive news from peers helped create a favorable environment for software stocks, which some strategists noted had been underperforming the broader market and were potentially positioned for a comeback.
What Is The Market Telling Us
Zscaler’s shares are quite volatile and have had 18 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.
The previous big move we wrote about was 10 days ago when the stock gained 4.1% on the news that cybersecurity stocks rebounded as analysts projected potential gains from the adoption of AI models.
The momentum was catalyzed by a KeyBanc survey of CIOs, which revealed a positive impact on cyber budgets within the next year due to Anthropic's Mythos AI model. Leading cybersecurity platforms are expected to benefit from the projected growth as enterprises expand their security budgets to stay ahead of the latest threats.
Zscaler is down 36.7% since the beginning of the year, and at $139.58 per share, it is trading 58.5% below its 52-week high of $336.27 from November 2025. Investors who bought $1,000 worth of Zscaler’s shares 5 years ago would now be looking at only $772.93.
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Every AI server needs specialized infrastructure the chip companies don’t make. High-speed cables. Power connectors. Thermal sensors. This 90-year-old company built a monopoly on it. The AI boom just started. This stock is still flying under the radar. Claim The Stock Ticker Here for FREE
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Based on Q1 2026 earnings reported on April 30, 2026, Roblox (RBLX) stock fell significantly after hours, with reports showing declines ranging from 18% to over 20%.
美国近年来持续加码限制、试图将中国汽车挡在国门之外,但在政策高墙的另一侧,景象却完全不同。