TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #32 · 7 фев.
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
Пребарај: #tectonics
@amazingeo · Post #613 · 04.02.2026 г., 20:31
🌍 Some earthquake "swarms" can hit the same spot repeatedly over weeks or months, releasing energy in small bursts instead of one big quake—often in volcanic or tectonic hot zones. ✨ #earthquakes⚡#tectonics⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #575 · 14.01.2026 г., 12:31
🌍 The planet’s largest earthquake ever measured—a magnitude 9.5—struck Chile in 1960. This event released so much energy it caused land to drop by up to two meters along the coast. ✨ #tectonics⚡#earthquakes⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #534 · 24.12.2025 г., 20:31
🌍 One of the fastest-moving tectonic faults is in Turkey, with plates shifting up to 23 millimeters per year. This constant motion makes the region prone to frequent, sometimes devastating earthquakes. ✨ #tectonics⚡#earthquakes⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #502 · 08.12.2025 г., 20:31
🌍 Some tectonic plate boundaries move so slowly they create “silent earthquakes”—huge shifts that happen over days or weeks, releasing energy without sudden shaking. ✨ #tectonics⚡#earthquakes⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #234 · 14.09.2025 г., 09:12
🌍 Some large earthquakes can trigger aftershocks that last for months or even years. These smaller quakes are part of the Earth’s ongoing adjustment after a major tectonic shift. ✨ #tectonics⚡#earthquakes⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #160 · 02.09.2025 г., 03:12
🌍 The strongest earthquakes ever recorded can move entire cities by several meters in seconds. In 2011, Japan’s coastline shifted east by up to 5 meters due to a massive plate boundary quake. ✨ #earthquakes⚡#tectonics⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #122 · 26.08.2025 г., 20:12
🌍 The San Andreas Fault in California allows two massive tectonic plates to slip past each other. This boundary creeps a few centimeters each year but can unleash powerful earthquakes in sudden jolts. ✨ #tectonics⚡#earthquakes⚡#geology⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #466 · 20.11.2025 г., 20:31
🌍 The ring-shaped chain of volcanoes called the "Ring of Fire" circles the Pacific Ocean, hosting about 75% of all active volcanoes on Earth and causing frequent earthquakes and eruptions. ✨ #volcanoes⚡#mountains⚡#tectonics⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #692 · 16.04.2026 г., 20:31
🌍 The Atlantic Ocean is growing wider each year as the Americas slowly drift apart from Europe and Africa, adding about 2.5 centimeters annually—roughly the speed fingernails grow. ✨ #continents⚡#oceans⚡#tectonics⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #348 · 08.10.2025 г., 18:31
🌍 The Eurasian and North American continents are moving apart by about 2.5 centimeters every year along the Mid-Atlantic Ridge, slowly widening the Atlantic Ocean over millions of years. ✨ #continents⚡#oceans⚡#tectonics⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #18 · 10.08.2025 г., 10:27
🌍 The lithosphere’s tectonic plates move slowly, but sometimes collide to form tall mountain ranges like the Himalayas, linking Earth's rocky shell to the atmosphere and biosphere. ✨ #lithosphere⚡#tectonics⚡#mountains⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #194 · 07.09.2025 г., 16:12
🌍 The Himalayas are rising by about 5 millimeters each year as the Indian and Eurasian plates continue to collide. This ongoing uplift makes these mountains among the youngest and fastest-growing on Earth. ✨ #mountains⚡#Himalayas⚡#tectonics⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍