Python: получить индекс максимального значения в списке
Функции и методы Python
Michael Zippo
27.11.2021
–° –ø–æ–º–æ—â—å—é –∏–Ω–¥–µ–∫—Å–∞—Ü–∏–∏ –≤—ã –º–æ–∂–µ—Ç–µ –ø–æ–ª—É—á–∏—Ç—å —ç–ª–µ–º–µ–Ω—Ç –∏–ª–∏ –¥–∏–∞–ø–∞–∑–æ–Ω —ç–ª–µ–º–µ–Ω—Ç–æ–≤ –∏–∑ —Å–ø–∏—Å–∫–∞. –í—ã –º–æ–∂–µ—Ç–µ –ø–æ–ª—É—á–∏—Ç—å –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—ã–π —ç–ª–µ–º–µ–Ω—Ç –∏–∑ —Å–ø–∏—Å–∫–∞ —Ç–æ–ª—å–∫–æ –≤ —Ç–æ–º —Å–ª—É—á–∞–µ, –µ—Å–ª–∏ –≤–∞–º –∏–∑–≤–µ—Å—Ç–µ–Ω –Ω–æ–º–µ—Ä –∏–Ω–¥–µ–∫—Å–∞, —Å–≤—è–∑–∞–Ω–Ω—ã–π —Å —ç—Ç–∏–º –∑–Ω–∞—á–µ–Ω–∏–µ–º.
–ß—Ç–æ–±—ã –Ω–∞–π—Ç–∏ –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ —Å–∞–º–æ–≥–æ –±–æ–ª—å—à–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ, –≤—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å max ()
–∏ index ()
. –≠—Ç–æ —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–æ –ø—Ä–æ–≤–µ–¥–µ—Ç –≤–∞—Å —á–µ—Ä–µ–∑ –ø—Ä–æ–≥—Ä–∞–º–º—É, –∫–æ—Ç–æ—Ä–∞—è –∏–∑–≤–ª–µ–∫–∞–µ—Ç –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ –º–∞–∫—Å–∏–º–∞–ª—å–Ω–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ.
Python: –∏–∑–≤–ª–µ–∫–∞–µ—Ç –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ –º–∞–∫—Å–∏–º–∞–ª—å–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è –≤ —Å–ø–∏—Å–∫–µ
–ù–∞–ø–∏—à–∏—Ç–µ –ø—Ä–æ–≥—Ä–∞–º–º—É –∫–æ—Ç–æ—Ä—ã–π –∏–∑–≤–ª–µ–∫–∞–µ—Ç –∏–º—è —É—á–∞—â–µ–≥–æ—Å—è, –ø–æ–ª—É—á–∏–≤—à–µ–≥–æ –Ω–∞–∏–≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É –Ω–∞ –ø–æ—Å–ª–µ–¥–Ω–µ–º —Ç–µ—Å—Ç–µ –ø–æ –º–∞—Ç–µ–º–∞—Ç–∏–∫–µ. –ó–∞—Ç–µ–º —ç—Ç–æ –∏–º—è –≤—ã–≤–æ–¥–∏—Ç—Å—è –Ω–∞ –∫–æ–Ω—Å–æ–ª—å.
–î–ª—è –Ω–∞—á–∞–ª–∞ —Å–æ–∑–¥–∞–π—Ç–µ –¥–≤–∞ —Å–ø–∏—Å–∫–∞ :
–ü–µ—Ä–≤—ã–π —Å–ø–∏—Å–æ–∫ —Å–æ–¥–µ—Ä–∂–∏—Ç –∏–º–µ–Ω–∞ —Å—Ç—É–¥–µ–Ω—Ç–æ–≤ –≤ –∫–ª–∞—Å—Å–µ. –í—Ç–æ—Ä–æ–π —Å–ø–∏—Å–æ–∫ —Å–æ–¥–µ—Ä–∂–∏—Ç –∏—Ö —Å–æ–æ—Ç–≤–µ—Ç—Å—Ç–≤—É—é—â–∏–µ –æ—Ü–µ–Ω–∫–∏.
–≠—Ç–∏ —Å–ø–∏—Å–∫–∏ –ø—Ä–µ–¥—Å—Ç–∞–≤–ª—è—é—Ç —Å–æ–±–æ–π –ø–∞—Ä–∞–ª–ª–µ–ª—å–Ω—ã–µ –º–∞—Å—Å–∏–≤—ã, —á—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ –æ–±–∞ –º–∞—Å—Å–∏–≤–∞ –∏–º–µ—é—Ç –æ–¥–∏–Ω–∞–∫–æ–≤—ã–π —Ä–∞–∑–º–µ—Ä –∏ –∫–∞–∂–¥–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –ø—Ä–µ–¥—Å—Ç–∞–≤–ª—è–µ—Ç —Å–æ–±–æ–π —á–∞—Å—Ç—å –∑–∞–ø–∏—Å–∏. " —Å—Ç—É–¥–µ–Ω—Ç—ã " —Å–æ–¥–µ—Ä–∂–∏—Ç –∏–º–µ–Ω–∞ –∏ " –æ—Ü–µ–Ω–∫–∏ " —Å–æ–¥–µ—Ä–∂–∏—Ç –æ—Ü–µ–Ω–∫–∏, –ø–æ–ª—É—á–µ–Ω–Ω—ã–µ —É—á–∞—â–∏–º–∏—Å—è.
–ó–∞—Ç–µ–º –Ω–∞–π–¥–∏—Ç–µ –≤ —Å–ø–∏—Å–∫–µ —Å–∞–º—É—é –≤—ã—Å–æ–∫—É—é –æ—Ü–µ–Ω–∫—É. –í—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å —Ñ—É–Ω–∫—Ü–∏—é max () , —á—Ç–æ–±—ã –Ω–∞–π—Ç–∏ —Å–∞–º—É—é –≤—ã—Å–æ–∫—É—é –æ—Ü–µ–Ω–∫—É –≤ —Å–ø–∏—Å–∫–µ:
–≠—Ç–æ—Ç –∫–æ–¥ –∏–∑–≤–ª–µ–∫–∞–µ—Ç –Ω–∞–∏–±–æ–ª—å—à–µ–µ —á–∏—Å–ª–æ. –≠—Ç–æ –Ω–µ —Å–æ–≤—Å–µ–º –∏–¥–µ–∞–ª—å–Ω–æ. –í—ã —Ö–æ—Ç–∏—Ç–µ –ø–æ–ª—É—á–∏—Ç—å –∏–Ω–¥–µ–∫—Å–Ω—É—é –ø–æ–∑–∏—Ü–∏—é –Ω–∞–∏–±–æ–ª—å—à–µ–≥–æ —á–∏—Å–ª–∞. –î–ª—è —ç—Ç–æ–≥–æ –≤–æ—Å–ø–æ–ª—å–∑—É–π—Ç–µ—Å—å –¥—Ä—É–≥–æ–π –≤—Å—Ç—Ä–æ–µ–Ω–Ω–æ–π —Ñ—É–Ω–∫—Ü–∏–µ–π: index () . –î–∞–≤–∞–π—Ç–µ –Ω–∞–π–¥–µ–º –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ —Å–∞–º–æ–≥–æ –±–æ–ª—å—à–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ:
81% —É—á–∞—Å—Ç–Ω–∏–∫–æ–≤ –∑–∞—è–≤–∏–ª–∏, —á—Ç–æ –æ–Ω–∏ –ø–æ—á—É–≤—Å—Ç–≤–æ–≤–∞–ª–∏ —Å–µ–±—è –±–æ–ª–µ–µ —É–≤–µ—Ä–µ–Ω–Ω—ã–º–∏ –≤ —Å–≤–æ–∏—Ö –ø–µ—Ä—Å–ø–µ–∫—Ç–∏–≤–∞—Ö —Ç—Ä—É–¥–æ—É—Å—Ç—Ä–æ–π—Å—Ç–≤–∞ –≤ —Å—Ñ–µ—Ä–µ –≤—ã—Å–æ–∫–∏—Ö —Ç–µ—Ö–Ω–æ–ª–æ–≥–∏–π –ø–æ—Å–ª–µ –ø–æ—Å–µ—â–µ–Ω–∏—è —É—á–µ–±–Ω–æ–≥–æ –∫—É—Ä—Å–∞. –ü–æ–ª—É—á–∏—Ç–µ –ø—Ä–∏–≥–ª–∞—à–µ–Ω–∏–µ –Ω–∞ —É—á–µ–±–Ω—ã–π –ª–∞–≥–µ—Ä—å —Å–µ–≥–æ–¥–Ω—è.
–°—Ä–µ–¥–Ω–∏–π –≤—ã–ø—É—Å–∫–Ω–∏–∫ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –ø–æ—Ç—Ä–∞—Ç–∏–ª –º–µ–Ω–µ–µ —à–µ—Å—Ç–∏ –º–µ—Å—è—Ü–µ–≤ –Ω–∞ —Å–º–µ–Ω—É –∫–∞—Ä—å–µ—Ä—ã, –æ—Ç –Ω–∞—á–∞–ª–∞ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –¥–æ –ø–æ–∏—Å–∫–∞ —Å–≤–æ–µ–π –ø–µ—Ä–≤–æ–π —Ä–∞–±–æ—Ç—ã.
–ü–æ—Ç–æ–º—É —á—Ç–æ —ç—Ç–∏ –¥–≤–∞ —Å–ø–∏—Å–∫–∞ –ø–∞—Ä–∞–ª–ª–µ–ª—å–Ω—ã , –ø–æ—Ä—è–¥–∫–æ–≤—ã–π –Ω–æ–º–µ—Ä –Ω–∞–∏–≤—ã—Å—à–µ–π –æ—Ü–µ–Ω–∫–∏ –≤ " –∫–ª–∞—Å—Å–∞—Ö " –°–ø–∏—Å–æ–∫ —Å–æ–≤–ø–∞–¥–∞–µ—Ç —Å –ø–æ—Ä—è–¥–∫–æ–≤—ã–º –Ω–æ–º–µ—Ä–æ–º —É—á–∞—â–µ–≥–æ—Å—è, –ø–æ–ª—É—á–∏–≤—à–µ–≥–æ —ç—Ç—É –æ—Ü–µ–Ω–∫—É –≤ —Å–ø–∏—Å–∫–µ " —Å—Ç—É–¥–µ–Ω—Ç—ã " —Å–ø–∏—Å–æ–∫.
–ó–∞—Ç–µ–º —Ä–∞—Å–ø–µ—á–∞—Ç–∞–π—Ç–µ —Å–æ–æ–±—â–µ–Ω–∏–µ –≤ –∫–æ–Ω—Å–æ–ª–∏, –≤ –∫–æ—Ç–æ—Ä–æ–º —Å–æ–æ–±—â–∞–µ—Ç—Å—è, –∫—Ç–æ –ø–æ–ª—É—á–∏–ª –≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É:
< p> –í–æ—Å–ø–æ–ª—å–∑—É–π—Ç–µ—Å—å —Å–∏–Ω—Ç–∞–∫—Å–∏—Å–æ–º –∏–Ω–¥–µ–∫—Å–∞—Ü–∏–∏, —á—Ç–æ–±—ã –ø–æ–ª—É—á–∏—Ç—å –∏–º—è —É—á–∞—â–µ–≥–æ—Å—è, –ø–æ–ª—É—á–∏–≤—à–µ–≥–æ –Ω–∞–∏–≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É. –ó–∞—Ç–µ–º –¥–æ–±–∞–≤—å—Ç–µ —ç—Ç–æ –∑–Ω–∞—á–µ–Ω–∏–µ –∏ –ø–æ–ª—É—á–µ–Ω–Ω—É—é –æ—Ü–µ–Ω–∫—É –≤ —Å—Ç—Ä–æ–∫—É.
–ó–∞–ø—É—Å—Ç–∏—Ç–µ –ø—Ä–æ–≥—Ä–∞–º–º—É –∏ –ø–æ—Å–º–æ—Ç—Ä–∏—Ç–µ, —á—Ç–æ –ø—Ä–æ–∏–∑–æ–π–¥–µ—Ç: < br>
–ö–æ–¥ —É—Å–ø–µ—à–Ω–æ –æ–ø—Ä–µ–¥–µ–ª—è–µ—Ç —É—á–∞—â–µ–≥–æ—Å—è, –ø–æ–ª—É—á–∏–≤—à–µ–≥–æ –Ω–∞–∏–≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É. –ß—Ç–æ–±—ã –Ω–∞–π—Ç–∏ –∏–Ω–¥–µ–∫—Å –º–∏–Ω–∏–º–∞–ª—å–Ω–æ–≥–æ –∫–æ–ª–∏—á–µ—Å—Ç–≤–∞ —ç–ª–µ–º–µ–Ω—Ç–æ–≤, –≤—ã –º–æ–∂–µ—Ç–µ –∑–∞–º–µ–Ω–∏—Ç—å —Ñ—É–Ω–∫—Ü–∏—é max ()
–Ω–∞ min ().
–ù–∞–π—Ç–∏ –Ω–µ—Å–∫–æ–ª—å–∫–æ –∏–Ω–¥–µ–∫—Å–æ–≤, —Ä–∞–≤–Ω—ã—Ö –º–∞–∫—Å–∏–º–∞–ª—å–Ω–æ–º—É –∑–Ω–∞—á–µ–Ω–∏—é
–ß—Ç–æ –ø—Ä–æ–∏–∑–æ–π–¥–µ—Ç, –µ—Å–ª–∏ –¥–≤–æ–µ —É—á–∞—â–∏—Ö—Å—è –∏–º–µ—é—Ç —Å–∞–º—É—é –≤—ã—Å–æ–∫—É—é –æ—Ü–µ–Ω–∫—É? –í—ã—à–µ—É–ø–æ–º—è–Ω—É—Ç–∞—è –ø—Ä–æ–≥—Ä–∞–º–º–∞ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç —Ç–æ–ª—å–∫–æ –∏–Ω–¥–µ–∫—Å–Ω—É—é –ø–æ–∑–∏—Ü–∏—é –ø–µ—Ä–≤–æ–≥–æ —É—á–∞—â–µ–≥–æ—Å—è, –ø–æ–ª—É—á–∏–≤—à–µ–≥–æ –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—É—é –æ—Ü–µ–Ω–∫—É.
–ß—Ç–æ–±—ã –Ω–∞–π—Ç–∏ –≤—Ö–æ–∂–¥–µ–Ω–∏—è –≤—Å–µ—Ö —É—á–∞—â–∏—Ö—Å—è, –ø–æ–ª—É—á–∏–≤—à–∏—Ö –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—É—é –æ—Ü–µ–Ω–∫—É, –≤—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å —Å–æ—Å—Ç–∞–≤–ª–µ–Ω–∏–µ —Å–ø–∏—Å–∫–∞. –ù–∞—á–Ω–∏—Ç–µ —Å –∏–Ω–∏—Ü–∏–∞–ª–∏–∑–∞—Ü–∏–∏ –∑–Ω–∞—á–µ–Ω–∏–π –∏ –ø–æ–ª—É—á–µ–Ω–∏—è –∑–Ω–∞—á–µ–Ω–∏—è –∏–Ω–¥–µ–∫—Å–∞ —Å–∞–º–æ–≥–æ –±–æ–ª—å—à–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ, –∫–∞–∫ –∏ —Ä–∞–Ω–µ–µ:
–í—ã –¥–æ–±–∞–≤–∏–ª–∏ –æ–¥–Ω—É –∑–∞–ø–∏—Å—å, —á—Ç–æ–±—ã —É–≤–∏–¥–µ—Ç—å, —á—Ç–æ –ø—Ä–æ–∏–∑–æ–π–¥–µ—Ç, –µ—Å–ª–∏ –¥–≤–∞ —É—á–∞—â–∏—Ö—Å—è –∏–º–µ—é—Ç –æ–¥–∏–Ω–∞–∫–æ–≤—É—é –æ—Ü–µ–Ω–∫—É –≤ –Ω–æ–≤–æ–º –ø—Ä–æ–≥—Ä–∞–º–º–∞.
–ó–∞—Ç–µ–º –Ω–∞–ø–∏—à–∏—Ç–µ –ø–æ–Ω–∏–º–∞–Ω–∏–µ —Å–ø–∏—Å–∫–∞ . –≠—Ç–æ—Ç —Å–ø–∏—Å–æ–∫ –ø–æ–∑–≤–æ–ª—è–µ—Ç –Ω–∞–π—Ç–∏ –ø–æ–∑–∏—Ü–∏–∏ –≤ –∏–Ω–¥–µ–∫—Å–µ –≤—Å–µ—Ö —É—á–∞—â–∏—Ö—Å—è, –ø–æ–ª—É—á–∏–≤—à–∏—Ö –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—É—é –æ—Ü–µ–Ω–∫—É:
–≠—Ç–æ—Ç –∫–æ–¥ –≤—ã–ø–æ–ª–Ω—è–µ—Ç –∏—Ç–µ—Ä–∞—Ü–∏—é –ø–æ –∫–∞–∂–¥–æ–π –æ—Ü–µ–Ω–∫–µ –≤ " grades " —Å–ø–∏—Å–æ–∫. –ö–∞–∂–¥–∞—è –æ—Ü–µ–Ω–∫–∞ —Å—Ä–∞–≤–Ω–∏–≤–∞–µ—Ç—Å—è —Å –Ω–∞–∏–±–æ–ª—å—à–∏–º –∑–Ω–∞—á–µ–Ω–∏–µ–º –≤ " –æ—Ü–µ–Ω–∫–∞—Ö " —Å–ø–∏—Å–æ–∫. –ï—Å–ª–∏ –∑–Ω–∞—á–µ–Ω–∏–µ —Ä–∞–≤–Ω–æ –Ω–∞–∏–≤—ã—Å—à–µ–π –æ—Ü–µ–Ω–∫–µ, –æ–Ω–æ –¥–æ–±–∞–≤–ª—è–µ—Ç—Å—è –≤ —Å–ø–∏—Å–æ–∫.
–ï—Å–ª–∏ –Ω–µ—Å–∫–æ–ª—å–∫–æ —É—á–∞—â–∏—Ö—Å—è –ø–æ–ª—É—á–∏–ª–∏ –Ω–∞–∏–≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É –æ—Ü–µ–Ω–∫–∞ –≤ –∫–ª–∞—Å—Å–µ, —Ü–∏–∫–ª for –±—É–¥–µ—Ç –≤—ã–ø–æ–ª–Ω—è—Ç—å—Å—è –Ω–µ—Å–∫–æ–ª—å–∫–æ —Ä–∞–∑. –ö–∞–∂–¥—ã–π —Ä–∞–∑ –ø—Ä–∏ –∑–∞–ø—É—Å–∫–µ —Ü–∏–∫–ª–∞ –∏–º—è —É—á–∞—â–µ–≥–æ—Å—è –≤—ã–≤–æ–¥–∏—Ç—Å—è –Ω–∞ –∫–æ–Ω—Å–æ–ª—å —Å —Å–æ–æ–±—â–µ–Ω–∏–µ–º –æ —Ç–æ–º, —á—Ç–æ –æ–Ω –ø–æ–ª—É—á–∏–ª —Å–∞–º—É—é –≤—ã—Å–æ–∫—É—é –æ—Ü–µ–Ω–∫—É –≤ –∫–ª–∞—Å—Å–µ.
–ù–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ —É—Å–ø–µ—à–Ω–æ –ø–æ–∫–∞–∑—ã–≤–∞–µ—Ç –∏–º–µ–Ω–∞ –≤—Å–µ—Ö —É—á–µ–Ω–∏–∫–æ–≤, –ø–æ–ª—É—á–∏–≤—à–∏—Ö –Ω–∞–∏–≤—ã—Å—à—É—é –æ—Ü–µ–Ω–∫—É –≤ –∫–ª–∞—Å—Å–µ.
–í—ã –º–æ–∂–µ—Ç–µ –ø–æ–ª—É—á–∏—Ç—å –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ —Å –ø–æ–º–æ—â—å—é index ()
. –í —Å–æ—á–µ—Ç–∞–Ω–∏–∏ —Å –º–µ—Ç–æ–¥–æ–º min ()
–∏–ª–∏ max ()
–≤—ã –º–æ–∂–µ—Ç–µ –Ω–∞–π—Ç–∏ –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞ —Å–∞–º–æ–≥–æ –º–∞–ª–µ–Ω—å–∫–æ–≥–æ –∏–ª–∏ —Å–∞–º–æ–≥–æ –±–æ–ª—å—à–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ.
–¢–µ–ø–µ—Ä—å —É –≤–∞—Å –µ—Å—Ç—å –∑–Ω–∞–Ω–∏—è, –Ω–µ–æ–±—Ö–æ–¥–∏–º—ã–µ –¥–ª—è –ø–æ–ª—É—á–µ–Ω–∏—è –∑–Ω–∞—á–µ–Ω–∏—è –∏–Ω–¥–µ–∫—Å–∞ –º–∞–∫—Å–∏–º–∞–ª—å–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è –≤ —Å–ø–∏—Å–∫–µ, –∫–∞–∫ —É —ç–∫—Å–ø–µ—Ä—Ç–∞ –ø–æ Python!