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Изворен канал @pythonotes · Post #32 · 7 фев.

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Скорее всего уже слышали, что складывать строки через + это плохая практика. Падение производительности, и всё такое. Без лишних слов, давайте измерять: from timeit import timeit def t1(): # складываем 10 строк через + из переменной t = 'text' for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t2(): # склеиваем список строк через метод join arr = ['text'] * 10 for _ in range(1000): s = ''.join(arr) def t3(): # складываем через + но не из переменной а непосредственно инлайн объекты for _ in range(1000): s = 'text' + 'text' + 'text' + ... # всего 10 раз Теперь каждую строку склейки запустим по 10М раз >>> timeit(t1, number=10000) 0.21951690399964718 >>> timeit(t2, number=10000) 1.4978306379998685 >>> timeit(t3, number=10000) 0.2213820789993406 Хм, а нам говорили что через "+" это плохо и медленно ))) 😁 Тут стоит учитывать, что речь идёт о склейке множества длинных строк. Давайте изменим условия: def t4(): t = 'text'*100 for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t5(): arr = ['text'*100] * 10 for _ in range(1000): s = ''.join(arr) def t6(): for _ in range(1000): s = 'text'*100 + 'text'*100 + ... # всего 10 раз >>> timeit(t4, number=10000) 12.795130728000004 >>> timeit(t5, number=10000) 2.642637542999182 >>> timeit(t6, number=10000) 0.2184546610005782 Вот, уже другой разговор, сразу видна разница, в среднем в 6 раз. Но погодите, почему последний тест t6() по скорости такой же как и t3()? Ведь строки теперь в 100 раз длиннее! Это вопросы оптимизации кода, какие простые изменения ускоряют или замедляют выполнение программы. Мы столкнулись с примером обхода обращения к переменной. Например, именно так работает директива #define в С++, во время компиляции подставляя значение переменной вместо ссылки на неё. В Python это тоже работает, но часто ли вы сможете встретить такой способ работы со строками? К сожалению, способ почти только теоретический. В целом, тесты показали то, что мы хотели. Делаем выводы самостоятельно. Полный листинг 🌍 #tricks

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@pdf_001 · Post #869 · 04.11.2020 г., 13:02

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#Harvard Writing Project 提供的写作手册涵盖史学、文学、艺术史、人类学、哲学、宗教学、政治学、性别研究、经济学、心理学等。全部PDF，自由下载 https://writingproject.fas.harvard.edu/pages/disciplinary-writing-guides

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Farangiz Murodiy | Cardinal 🇺🇿🇹🇷🇺🇸

@farangizmurodiy · Post #74 · 26.03.2023 г., 05:14

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🕵🏻‍♀️How Harvard rates your application? part 4 For part 1: https://t.me/farangizmurodiy/14 🏛 When you apply to Harvard, Harvard rates your application from 1 to 6 in four categories and gives one overall rating. Part 4: Athletic Rating 🏅🏅🏅 1️⃣Unusually strong prospect for varsity sports at Harvard, desired by Harvard coaches. 2️⃣ Strong secondary school contribution in one or more areas; possible leadership role(s). 3️⃣ Active participation. 4️⃣ Little or no interest. 5️⃣ Substantial activity outside of conventional EC participation such as family commitments or term-time work (could be included with other e/c to boost the rating or left as a "5" if it is more representative of the student's commitment). 6️⃣Physical condition prevents significant activity. Note: After watching lots of videos of Harvard students talking about their admission files, I understood that not being athlete will not damage your application, but if you're an international level athlete, it will benefit you a lot. Because the calculation of an application's overall rating is not just arithmetical, getting a low athletic rating will not disadvantage you if you are very successful in other areas. However, getting 1, being recruited athlete, will boost your application significantly. 👩🏻‍⚖️ This was the part 4 of#Harvard admission series. Finally, in the next Harvard post, I’ll be sharing strategies on how you can apply those valuable infos from all four parts to your own application. @farangizmurodiy

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Farangiz Murodiy | Cardinal 🇺🇿🇹🇷🇺🇸

@farangizmurodiy · Post #43 · 09.03.2023 г., 09:02

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🕵🏻‍♀️How Harvard rates you? part 3 🏛 When you apply to Harvard, Harvard rates your application from 1 to 6 in four categories and gives one overall rating. Part 3: Personal Rating ❤️ 1) Outstanding 2) Very Strong 3) Generally Positive 4) Bland or somewhat negative or immature 5) Questionable personal qualities 6) Worrisome personal qualities 🤯 This is the most subjective rating in Harvard admissions. Also, this subjectiveness is the reason why Harvard is dealing with an affirmative action lawsuit. More info: https://rb.gy/tjr3zl What determines your personal rating is: 📝 Essays 👩‍🏫 Recommendation Letters Because it's very subjective, your application as a whole plays a role in this rating. Part 1: https://t.me/farangizmurodiy/14 Part 2:https://t.me/farangizmurodiy/23 👩🏻‍⚖️ This was the part 3 of 4 #Harvard admission series. In the end of the series, I’ll be sharing strategies on how you can apply this valuable info to your own application. @farangizmurodiy

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Farangiz Murodiy | Cardinal 🇺🇿🇹🇷🇺🇸

@farangizmurodiy · Post #23 · 26.02.2023 г., 09:01

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🕵🏻‍♀️How Harvard rates you? part 2 🏛 When you apply to Harvard, Harvard rates your application from 1 to 6 in four categories and gives one overall rating. Part 2: Extracurricular Rating 🏆 1️⃣ Unusual strength in one or more areas. Possible national-level achievement or professional experience. A potential major contributor at Harvard. Truly unusual achievement. 2️⃣Strong secondary school contribution in one or more areas such as class president, newspaper editor, etc. Local or regional recognition; major accomplishment(s).[in another filing]: "Significant school, and possibly regional accomplishments: for example, an applicant who was the student body president or captain of the debate team and the leader of multiple additional clubs." 3️⃣Solid participation but without special distinction. (Upgrade 3+ to 2- in some cases if the e/c is particularly extensive and substantive.) 4️⃣ Little or no participation. 5️⃣Substantial activity outside of conventional EC participation such as family commitments or term-time work (could be included with other e/c to boost the rating or left as a "5" if it is more representative of the student's commitment). 6️⃣Special circumstances limit or prevent participation (e.g. a physical condition). 👩🏻‍⚖️ This was the part 2 of 4#Harvard admission series. In the end of the series, I’ll be sharing strategies on how you can apply this valuable info to your own application. @farangizmurodiy

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Farangiz Murodiy | Cardinal 🇺🇿🇹🇷🇺🇸

@farangizmurodiy · Post #14 · 24.02.2023 г., 10:47

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🕵🏻‍♀️How Harvard rates you? When you apply to Harvard, Harvard rates your application from 1 to 6 in four categories and gives one overall rating. Part 1: Academic Achievement 📚 1) Summa potential: Genuine scholar; near-perfect scores and grades (in most cases) combined with unusual creativity and possible evidence of original scholarship. 2) Magna potential: Excellent student with superb grades and mid-to-high-700 scores (33+ ACT). 3) Cum laude potential: Very good student with excellent grades and mid-600 to low-700 scores (29 to 32 ACT). 4) Adequate preparation: Respectable grades and low-to-mid-600 scores (26 to 29) ACT). 5) Marginal potential: Modest grades and 500 scores (25 and below ACT). 6) Achievement or motivation marginal or worse. 👩🏻‍⚖️ This was the part 1 of 4 #Harvard admission series. In the end of the series, I’ll be sharing strategies on how you can apply this valuable info to your own application. 🏆 Follow for more unique admission strategies: @farangizmurodiy

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