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: #urawa
@ai_match_prediction · Post #11453 · 11.04.2026 г., 21:05
Japan J1 League🇯🇵 2026-04-12 05:00 UTC Urawa vs. Tokyo Verdy Predicted outcome: Urawa❌ Predicted score: 2:1 Actual: Draw 1:1 #Urawa#TokyoVerdy 2026-04-12 07:00 UTC Kawasaki Frontale vs. Kashima Predicted outcome: Kashima✅ Predicted score: 1:3 Actual: Kashima 0:2 #KawasakiFrontale#Kashima #Football#J1League
@ai_match_prediction · Post #11970 · 08.05.2026 г., 21:05
Japan J1 League🇯🇵 2026-05-09 05:00 UTC Mito Hollyhock vs. Urawa Predicted outcome: Mito Hollyhock❌ Predicted score: 2:1 Actual: Urawa 1:4 #MitoHollyhock#Urawa 2026-05-09 07:00 UTC Cerezo Osaka vs. V-varen Nagasaki Predicted outcome: Cerezo Osaka✅ Predicted score: 2:1 Actual: Cerezo Osaka 3:2 #CerezoOsaka#VvarenNagasaki #Football#J1League
@ai_match_prediction · Post #11554 · 17.04.2026 г., 21:05
Japan J1 League🇯🇵 2026-04-18 04:00 UTC Yokohama F. Marinos vs. Kawasaki Frontale Predicted outcome: Yokohama F. Marinos❌ Predicted score: 3:1 Actual: Kawasaki Frontale 1:2 #YokohamaFMarinos#KawasakiFrontale 2026-04-18 05:00 UTC Sanfrecce Hiroshima vs. V-varen Nagasaki Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Sanfrecce Hiroshima 2:0 #SanfrecceHiroshima#VvarenNagasaki 2026-04-18 05:00 UTC Kashima vs. Urawa Predicted outcome: Kashima✅ Predicted score: 1:0 Actual: Kashima 1:0 #Kashima#Urawa 2026-04-18 06:00 UTC Tokyo Verdy vs. JEF United Chiba Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Tokyo Verdy 1:0 #TokyoVerdy#JEFUnitedChiba 2026-04-18 07:00 UTC Cerezo Osaka vs. Kyoto Sanga Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Cerezo Osaka 3:0 #CerezoOsaka#KyotoSanga #Football#J1League
@ai_match_prediction · Post #11304 · 04.04.2026 г., 21:05
Japan J1 League🇯🇵 2026-04-05 04:00 UTC V-varen Nagasaki vs. Shimizu S-pulse Predicted outcome: V-varen Nagasaki❌ Predicted score: 1:0 Actual: Shimizu S-pulse 0:3 #VvarenNagasaki#ShimizuSpulse 2026-04-05 05:00 UTC Kashiwa Reysol vs. Yokohama F. Marinos Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Kashiwa Reysol 3:0 #KashiwaReysol#YokohamaFMarinos 2026-04-05 05:00 UTC Sanfrecce Hiroshima vs. Avispa Fukuoka Predicted outcome: Sanfrecce Hiroshima❌ Predicted score: 2:0 Actual: Avispa Fukuoka 0:1 #SanfrecceHiroshima#AvispaFukuoka 2026-04-05 05:00 UTC Fagiano Okayama vs. Vissel Kobe Predicted outcome: Vissel Kobe✅ Predicted score: 0:1 Actual: Vissel Kobe 1:4 #FagianoOkayama#VisselKobe 2026-04-05 06:00 UTC FC Tokyo vs. Machida Zelvia Predicted outcome: Draw✅ Predicted score: 1:1 Actual: Draw 0:0 #FCTokyo#MachidaZelvia 2026-04-05 07:00 UTC Kawasaki Frontale vs. Urawa Predicted outcome: Kawasaki Frontale✅ Predicted score: 2:1 Actual: Kawasaki Frontale 3:2 #KawasakiFrontale#Urawa #Football#J1League
@ai_match_prediction · Post #11839 · 01.05.2026 г., 21:05
Japan J1 League🇯🇵 2026-05-02 04:00 UTC Fagiano Okayama vs. Sanfrecce Hiroshima Predicted outcome: Sanfrecce Hiroshima❌ Predicted score: 1:2 Actual: Fagiano Okayama 1:0 #FagianoOkayama#SanfrecceHiroshima 2026-05-02 05:00 UTC FC Tokyo vs. Kawasaki Frontale Predicted outcome: FC Tokyo✅ Predicted score: 3:1 Actual: FC Tokyo 2:0 #FCTokyo#KawasakiFrontale 2026-05-02 05:00 UTC Yokohama F. Marinos vs. Mito Hollyhock Predicted outcome: Yokohama F. Marinos❌ Predicted score: 2:1 Actual: Draw 1:1 #YokohamaFMarinos#MitoHollyhock 2026-05-02 05:00 UTC Kyoto Sanga vs. Shimizu S-pulse Predicted outcome: Kyoto Sanga❌ Predicted score: 2:1 Actual: Shimizu S-pulse 1:2 #KyotoSanga#ShimizuSpulse 2026-05-02 06:00 UTC Gamba Osaka vs. Vissel Kobe Predicted outcome: Vissel Kobe❌ Predicted score: 1:2 Actual: Gamba Osaka 5:0 #GambaOsaka#VisselKobe 2026-05-02 07:00 UTC Urawa vs. JEF United Chiba Predicted outcome: Urawa✅ Predicted score: 2:1 Actual: Urawa 2:0 #Urawa#JEFUnitedChiba #Football#J1League
@ai_match_prediction · Post #11713 · 24.04.2026 г., 21:05
Japan J1 League🇯🇵 2026-04-25 05:00 UTC Shimizu S-pulse vs. Nagoya Grampus Predicted outcome: Draw❌ Predicted score: 2:2 Actual: Nagoya Grampus 0:2 #ShimizuSpulse#NagoyaGrampus 2026-04-25 05:00 UTC Urawa vs. Yokohama F. Marinos Predicted outcome: Urawa❌ Predicted score: 2:1 Actual: Yokohama F. Marinos 2:3 #Urawa#YokohamaFMarinos 2026-04-25 05:00 UTC Fagiano Okayama vs. Avispa Fukuoka Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Fagiano Okayama 2:0 #FagianoOkayama#AvispaFukuoka 2026-04-25 06:00 UTC Kawasaki Frontale vs. JEF United Chiba Predicted outcome: Kawasaki Frontale✅ Predicted score: 3:1 Actual: Kawasaki Frontale 2:1 #KawasakiFrontale#JEFUnitedChiba 2026-04-25 07:00 UTC Sanfrecce Hiroshima vs. Cerezo Osaka Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Sanfrecce Hiroshima 2:1 #SanfrecceHiroshima#CerezoOsaka 2026-04-25 09:30 UTC V-varen Nagasaki vs. Gamba Osaka Predicted outcome: Gamba Osaka❌ Predicted score: 1:2 Actual: Draw 1:1 #VvarenNagasaki#GambaOsaka #Football#J1League
@ai_match_prediction · Post #11138 · 21.03.2026 г., 21:05
Japan J1 League🇯🇵 2026-03-22 04:00 UTC Shimizu S-pulse vs. Sanfrecce Hiroshima Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Shimizu S-pulse 3:1 #ShimizuSpulse#SanfrecceHiroshima 2026-03-22 05:00 UTC Kyoto Sanga vs. Nagoya Grampus Predicted outcome: Kyoto Sanga❌ Predicted score: 2:1 Actual: Draw 1:1 #KyotoSanga#NagoyaGrampus 2026-03-22 05:00 UTC Tokyo Verdy vs. FC Tokyo Predicted outcome: FC Tokyo❌ Predicted score: 0:1 Actual: Draw 0:0 #TokyoVerdy#FCTokyo 2026-03-22 06:00 UTC Kashima vs. JEF United Chiba Predicted outcome: Kashima✅ Predicted score: 2:0 Actual: Kashima 2:1 #Kashima#JEFUnitedChiba 2026-03-22 06:00 UTC Cerezo Osaka vs. Vissel Kobe Predicted outcome: Vissel Kobe❌ Predicted score: 0:1 Actual: Draw 1:1 #CerezoOsaka#VisselKobe 2026-03-22 06:00 UTC Kawasaki Frontale vs. Yokohama F. Marinos Predicted outcome: Kawasaki Frontale❌ Predicted score: 3:1 Actual: Yokohama F. Marinos 0:5 #KawasakiFrontale#YokohamaFMarinos 2026-03-22 07:00 UTC Kashiwa Reysol vs. Mito Hollyhock Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Kashiwa Reysol 3:0 #KashiwaReysol#MitoHollyhock 2026-03-22 07:00 UTC Urawa vs. Machida Zelvia Predicted outcome: Urawa❌ Predicted score: 2:1 Actual: Machida Zelvia 1:2 #Urawa#MachidaZelvia #Football#J1League
@ai_match_prediction · Post #11937 · 05.05.2026 г., 21:05
Japan J1 League🇯🇵 2026-05-06 04:03 UTC Shimizu S-pulse vs. Cerezo Osaka Predicted outcome: Shimizu S-pulse❌ Predicted score: 2:1 Actual: Draw 1:1 #ShimizuSpulse#CerezoOsaka 2026-05-06 04:03 UTC V-varen Nagasaki vs. Fagiano Okayama Predicted outcome: Fagiano Okayama❌ Predicted score: 1:2 Actual: V-varen Nagasaki 2:1 #VvarenNagasaki#FagianoOkayama 2026-05-06 05:00 UTC Nagoya Grampus vs. Gamba Osaka Predicted outcome: Nagoya Grampus✅ Predicted score: 2:1 Actual: Nagoya Grampus 2:1 #NagoyaGrampus#GambaOsaka 2026-05-06 05:00 UTC Avispa Fukuoka vs. Kyoto Sanga Predicted outcome: Avispa Fukuoka❌ Predicted score: 2:1 Actual: Draw 1:1 #AvispaFukuoka#KyotoSanga 2026-05-06 06:00 UTC Sanfrecce Hiroshima vs. Vissel Kobe Predicted outcome: Vissel Kobe❌ Predicted score: 1:2 Actual: Draw 1:1 #SanfrecceHiroshima#VisselKobe 2026-05-06 06:00 UTC FC Tokyo vs. JEF United Chiba Predicted outcome: FC Tokyo❌ Predicted score: 2:0 Actual: JEF United Chiba 0:3 #FCTokyo#JEFUnitedChiba 2026-05-06 07:00 UTC Kashima vs. Mito Hollyhock Predicted outcome: Kashima✅ Predicted score: 2:0 Actual: Kashima 3:0 #Kashima#MitoHollyhock 2026-05-06 07:00 UTC Machida Zelvia vs. Yokohama F. Marinos Predicted outcome: Yokohama F. Marinos❌ Predicted score: 1:2 Actual: Machida Zelvia 2:0 #MachidaZelvia#YokohamaFMarinos 2026-05-06 08:00 UTC Kawasaki Frontale vs. Tokyo Verdy Predicted outcome: Kawasaki Frontale✅ Predicted score: 2:1 Actual: Kawasaki Frontale 1:0 #KawasakiFrontale#TokyoVerdy 2026-05-06 10:00 UTC Kashiwa Reysol vs. Urawa Predicted outcome: Kashiwa Reysol❌ Predicted score: 2:1 Actual: Urawa 0:1 #KashiwaReysol#Urawa #Football#J1League
@ai_match_prediction · Post #11804 · 28.04.2026 г., 21:05
Japan J1 League🇯🇵 2026-04-29 04:00 UTC Shimizu S-pulse vs. V-varen Nagasaki Predicted outcome: Shimizu S-pulse❌ Predicted score: 2:1 Actual: V-varen Nagasaki 1:2 #ShimizuSpulse#VvarenNagasaki 2026-04-29 04:00 UTC Tokyo Verdy vs. Kashima Predicted outcome: Kashima❌ Predicted score: 0:2 Actual: Tokyo Verdy 2:1 #TokyoVerdy#Kashima 2026-04-29 05:00 UTC Vissel Kobe vs. Cerezo Osaka Predicted outcome: Vissel Kobe❌ Predicted score: 2:1 Actual: Draw 0:0 #VisselKobe#CerezoOsaka 2026-04-29 05:00 UTC JEF United Chiba vs. Yokohama F. Marinos Predicted outcome: JEF United Chiba❌ Predicted score: 3:2 Actual: Yokohama F. Marinos 2:3 #JEFUnitedChiba#YokohamaFMarinos 2026-04-29 05:00 UTC Avispa Fukuoka vs. Sanfrecce Hiroshima Predicted outcome: Sanfrecce Hiroshima❌ Predicted score: 1:2 Actual: Draw 2:2 #AvispaFukuoka#SanfrecceHiroshima 2026-04-29 06:00 UTC Urawa vs. Kawasaki Frontale Predicted outcome: Urawa✅ Predicted score: 2:1 Actual: Urawa 2:0 #Urawa#KawasakiFrontale 2026-04-29 06:00 UTC Nagoya Grampus vs. Fagiano Okayama Predicted outcome: Nagoya Grampus❌ Predicted score: 2:1 Actual: Draw 1:1 #NagoyaGrampus#FagianoOkayama 2026-04-29 06:00 UTC Kyoto Sanga vs. Gamba Osaka Predicted outcome: Kyoto Sanga❌ Predicted score: 2:1 Actual: Draw 1:1 #KyotoSanga#GambaOsaka 2026-04-29 07:00 UTC Kashiwa Reysol vs. FC Tokyo Predicted outcome: FC Tokyo✅ Predicted score: 1:2 Actual: FC Tokyo 1:3 #KashiwaReysol#FCTokyo 2026-04-29 07:00 UTC Mito Hollyhock vs. Machida Zelvia Predicted outcome: Mito Hollyhock❌ Predicted score: 2:1 Actual: Draw 2:2 #MitoHollyhock#MachidaZelvia #Football#J1League