Пошаговое руководство по подсчету в Python

–ú–µ—Ç–æ–¥ Python count () –≤—ã—á–∏—Å–ª—è–µ—Ç, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∫–æ–Ω–∫—Ä–µ—Ç–Ω—ã–π —ç–ª–µ–º–µ–Ω—Ç –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ. count () –ø—Ä–∏–Ω–∏–º–∞–µ—Ç –æ–¥–∏–Ω –∞—Ä–≥—É–º–µ–Ω—Ç: –∑–Ω–∞—á–µ–Ω–∏–µ, –∫–æ—Ç–æ—Ä–æ–µ –≤—ã —Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –≤ —Å–ø–∏—Å–∫–µ. –ú–µ—Ç–æ–¥ count () –¥–æ–±–∞–≤–ª—è–µ—Ç—Å—è –≤ –∫–æ–Ω–µ—Ü —Å–ø–∏—Å–∫–∞ –∏–ª–∏ —Å—Ç—Ä–æ–∫–æ–≤–æ–≥–æ –æ–±—ä–µ–∫—Ç–∞.

–í—ã –º–æ–∂–µ—Ç–µ —É–∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∫–æ–Ω–∫—Ä–µ—Ç–Ω–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ. –ù–∞–ø—Ä–∏–º–µ—Ä, –≤—ã –æ–ø—Ç–æ–≤—ã–π —Ç–æ—Ä–≥–æ–≤–µ—Ü. –í–æ–∑–º–æ–∂–Ω–æ, –≤–∞–º –∑–∞—Ö–æ—á–µ—Ç—Å—è —É–∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ –∑–∞–∫–∞–∑–æ–≤ –∫–æ–Ω–∫—Ä–µ—Ç–Ω—ã–π –∫–ª–∏–µ–Ω—Ç —Ä–∞–∑–º–µ—Å—Ç–∏–ª –∑–∞ –ø–æ—Å–ª–µ–¥–Ω–∏–µ —à–µ—Å—Ç—å –º–µ—Å—è—Ü–µ–≤.

–ú–µ—Ç–æ–¥ Python count () –º–æ–∂–Ω–æ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –¥–ª—è –ø–æ–¥—Å—á–µ—Ç–∞ –∫–æ–ª–∏—á–µ—Å—Ç–≤–∞ —Ä–∞–∑, –∫–æ–≥–¥–∞ –∫–æ–Ω–∫—Ä–µ—Ç–Ω—ã–π —ç–ª–µ–º–µ–Ω—Ç –æ—Ç–æ–±—Ä–∞–∂–∞–µ—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ –≤ —Å—Ç—Ä–æ–∫–µ. –ü—Ä–∏ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–∏ —Å–æ —Å—Ç—Ä–æ–∫–æ–π –º–µ—Ç–æ–¥ count () –ø–æ–¥—Å—á–∏—Ç—ã–≤–∞–µ—Ç, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –ø–æ–¥—Å—Ç—Ä–æ–∫–∞ –≤—Å—Ç—Ä–µ—á–∞–µ—Ç—Å—è –≤ –±–æ–ª–µ–µ –∫—Ä—É–ø–Ω–æ–π —Å—Ç—Ä–æ–∫–µ. –ö–æ–≥–¥–∞ count () –∏—Å–ø–æ–ª—å–∑—É–µ—Ç—Å—è —Å–æ —Å–ø–∏—Å–∫–æ–º, –º–µ—Ç–æ–¥ –ø–æ–¥—Å—á–∏—Ç—ã–≤–∞–µ—Ç –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ –≤—Ö–æ–∂–¥–µ–Ω–∏–π —É–∫–∞–∑–∞–Ω–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è –≤ —Å–ø–∏—Å–æ–∫.

–í —ç—Ç–æ–π —Å—Ç–∞—Ç—å–µ –º—ã —Å–æ–±–∏—Ä–∞–µ–º—Å—è –æ–±—Å—É–¥–∏—Ç—å, –∫–∞–∫ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –º–µ—Ç–æ–¥ count () –∫–∞–∫ –¥–ª—è —Å–ø–∏—Å–∫–æ–≤, —Ç–∞–∫ –∏ –¥–ª—è —Å—Ç—Ä–æ–∫.

–§—É–Ω–∫—Ü–∏—è Python count ()

–§—É–Ω–∫—Ü–∏—è Python count () –æ–ø—Ä–µ–¥–µ–ª—è–µ—Ç, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∑–Ω–∞—á–µ–Ω–∏–µ –æ—Ç–æ–±—Ä–∞–∂–∞–µ—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ. –û–Ω –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∑–Ω–∞—á–µ–Ω–∏–µ –≤—Å—Ç—Ä–µ—á–∞–µ—Ç—Å—è –≤ –≤–∏–¥–µ —Ü–µ–ª–æ–≥–æ —á–∏—Å–ª–∞.

–í–æ—Ç —Å–∏–Ω—Ç–∞–∫—Å–∏—Å —Ñ—É–Ω–∫—Ü–∏–∏ count ():

–ù–∞—à –∫–æ–¥ —Å—á–∏—Ç–∞–µ—Ç, –∫–∞–∫ –º–Ω–æ–≥–æ —Ä–∞–∑ " –õ—å—é–∏—Å " –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ –Ω–∞—à–µ–º —Å–ø–∏—Å–∫–µ.

–í—ã –º–æ–∂–µ—Ç–µ –≤–∏–¥–µ—Ç—å, —á—Ç–æ –º–µ—Ç–æ–¥ count () –¥–æ–±–∞–≤–ª–µ–Ω –ø–æ—Å–ª–µ –∑–Ω–∞—á–µ–Ω–∏—è —Å–ø–∏—Å–∫–∞ –≤ —ç—Ç–æ–º –ø—Ä–∏–º–µ—Ä–µ. count () –Ω–µ –ø—Ä–∏–Ω–∏–º–∞–µ—Ç —Å–ø–∏—Å–æ–∫ –≤ –∫–∞—á–µ—Å—Ç–≤–µ –∞—Ä–≥—É–º–µ–Ω—Ç–∞. –ú–µ—Ç–æ–¥ count () –ø—Ä–µ–¥–ø–æ–ª–∞–≥–∞–µ—Ç, —á—Ç–æ –≤—ã –ø–µ—Ä–µ–¥–∞–¥–∏—Ç–µ –≤ –∫–∞—á–µ—Å—Ç–≤–µ –∞—Ä–≥—É–º–µ–Ω—Ç–∞ –∑–Ω–∞—á–µ–Ω–∏–µ, –∫–æ—Ç–æ—Ä–æ–µ –≤—ã —Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ.

81% —É—á–∞—Å—Ç–Ω–∏–∫–æ–≤ –∑–∞—è–≤–∏–ª–∏, —á—Ç–æ –æ–Ω–∏ —á—É–≤—Å—Ç–≤–æ–≤–∞–ª–∏ —Å–µ–±—è –±–æ–ª–µ–µ —É–≤–µ—Ä–µ–Ω–Ω–æ –≤ —Å–≤–æ–∏—Ö –ø–µ—Ä—Å–ø–µ–∫—Ç–∏–≤–∞—Ö —Ä–∞–±–æ—Ç—ã –≤ —Å—Ñ–µ—Ä–µ —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—ã–π –ª–∞–≥–µ—Ä—å. –ü—Ä–æ–π–¥–∏—Ç–µ —É—á–µ–±–Ω—ã–π –∫—É—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–∞ –ø–µ—Ä–µ—Ö–æ–¥–Ω—É—é –∫–∞—Ä—å–µ—Ä—É, –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.

–ù–∞–ø—Ä–∏–º–µ—Ä, –ø–æ–∑–≤–æ–ª—å—Ç–µ " s —Å–∫–∞–∂–∏—Ç–µ, —á—Ç–æ –≤—ã –ø—Ä–æ–¥–∞–≤–µ—Ü –≤ –º–µ—Å—Ç–Ω–æ–π —á–∞–π–Ω–æ–π –∫–æ–º–ø–∞–Ω–∏–∏. –í–æ–∑–º–æ–∂–Ω–æ, –≤—ã –∑–∞—Ö–æ—Ç–∏—Ç–µ —É–∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∑–∞ –ø–æ—Å–ª–µ–¥–Ω–∏–π –º–µ—Å—è—Ü —á–∞–π English Breakfast –±—ã–ª –ø—Ä–æ–¥–∞–Ω –∫–æ–Ω–∫—Ä–µ—Ç–Ω–æ–º—É –ø–æ–∫—É–ø–∞—Ç–µ–ª—é. –≠—Ç–æ –ø–æ–∑–≤–æ–ª–∏—Ç –≤–∞–º –æ—Ü–µ–Ω–∏—Ç—å —Å–ø—Ä–æ—Å –Ω–∞ —á–∞–π.

–í—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –º–µ—Ç–æ–¥ count () –¥–ª—è —Å–ø–∏—Å–∫–∞ –∑–∞–∫–∞–∑–æ–≤ –Ω–∞ —á–∞–π, —Ä–∞–∑–º–µ—â–µ–Ω–Ω—ã—Ö –∑–∞ –ø–æ—Å–ª–µ–¥–Ω–∏–π –º–µ—Å—è—Ü –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—ã–º –∫–ª–∏–µ–Ω—Ç–æ–º, –¥–ª—è –æ—Ü–µ–Ω–∫–∏ —Å–ø—Ä–æ—Å–∞. . –í–æ—Ç –ø—Ä–∏–º–µ—Ä –ø—Ä–æ–≥—Ä–∞–º–º—ã, –∫–æ—Ç–æ—Ä–∞—è –≤—ã–ø–æ–ª–Ω—è–µ—Ç —ç—Ç—É –∑–∞–¥–∞—á—É:

–í –ø–µ—Ä–≤–æ–π —Å—Ç—Ä–æ–∫–µ –∫–æ–¥–∞ –º—ã –æ–±—ä—è–≤–ª—è–µ–º –º–∞—Å—Å–∏–≤ Python , –≤ –∫–æ—Ç–æ—Ä–æ–º —Ö—Ä–∞–Ω—è—Ç—Å—è –≤—Å–µ –∑–∞–∫–∞–∑—ã, —Ä–∞–∑–º–µ—â–µ–Ω–Ω—ã–µ –∫–æ–Ω–∫—Ä–µ—Ç–Ω—ã–º –∫–ª–∏–µ–Ω—Ç–æ–º –∑–∞ –ø–æ—Å–ª–µ–¥–Ω–∏–π –º–µ—Å—è—Ü. –ú—ã –∏—Å–ø–æ–ª—å–∑—É–µ–º count (), —á—Ç–æ–±—ã –ø–æ–¥—Å—á–∏—Ç–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∫–ª–∏–µ–Ω—Ç –∑–∞–∫–∞–∑—ã–≤–∞–ª —á–∞–π –¥–ª—è –∞–Ω–≥–ª–∏–π—Å–∫–æ–≥–æ –∑–∞–≤—Ç—Ä–∞–∫–∞.

–ù–∞–∫–æ–Ω–µ—Ü, –º—ã —Ä–∞—Å–ø–µ—á–∞—Ç—ã–≤–∞–µ–º —Ä–µ–∑—É–ª—å—Ç–∞—Ç –Ω–∞—à–µ–≥–æ count () –≤ –∫–æ–Ω—Å–æ–ª—å. –ú—ã –¥–µ–ª–∞–µ–º —ç—Ç–æ —Å –ø–æ–º–æ—â—å—é –æ–ø–µ—Ä–∞—Ç–æ—Ä–∞ Python print () . –ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –æ–±—â–µ–µ –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ –ø–æ—è–≤–ª–µ–Ω–∏–π —ç–ª–µ–º–µ–Ω—Ç–∞ English Breakfast –≤ —Å–ø–∏—Å–∫–µ. –í —ç—Ç–æ–º —Å–ª—É—á–∞–µ —Ä–µ–∑—É–ª—å—Ç–∞—Ç —Ä–∞–≤–µ–Ω 3.

–§—É–Ω–∫—Ü–∏—è count () –≤ Python –º–æ–∂–µ—Ç –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å—Å—è –¥–ª—è —Å–ø–∏—Å–∫–∞ —á–∏—Å–µ–ª. –î–æ–ø—É—Å—Ç–∏–º, –≤—ã —É—á–∏—Ç–µ–ª—å —á–µ—Ç–≤–µ—Ä—Ç–æ–≥–æ –∫–ª–∞—Å—Å–∞, –∫–æ—Ç–æ—Ä—ã–π —Ö–æ—á–µ—Ç –∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ –¥–µ—Å—è—Ç–∏–ª–µ—Ç–Ω–∏—Ö –¥–µ—Ç–µ–π –≤ –≤–∞—à–µ–º –∫–ª–∞—Å—Å–µ. –í—ã –º–æ–∂–µ—Ç–µ –≤—ã—á–∏—Å–ª–∏—Ç—å —ç—Ç—É –∏–Ω—Ñ–æ—Ä–º–∞—Ü–∏—é, –∏—Å–ø–æ–ª—å–∑—É—è —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥:

–ú—ã —Å—á–∏—Ç–∞–µ–º —ç–ª–µ–º–µ–Ω—Ç —á–µ—Ç—ã—Ä–µ —Ä–∞–∑–∞ –≤ –Ω–∞—à–µ–º —Å–ø–∏—Å–∫–µ. –ü—Ä–æ–≥—Ä–∞–º–º–∞ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç: 4.

–ú–µ—Ç–æ–¥ count () –º–æ–∂–µ—Ç –ø–æ–¥—Å—á–∏—Ç—ã–≤–∞—Ç—å –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ –≤—Ö–æ–∂–¥–µ–Ω–∏–π –ø–æ–¥—Å—Ç—Ä–æ–∫–∏ –≤ –±–æ–ª—å—à—É—é —Å—Ç—Ä–æ–∫—É. –°—Ç—Ä–æ–∫–æ–≤—ã–π –º–µ—Ç–æ–¥ Python count () –≤—ã–ø–æ–ª–Ω—è–µ—Ç –ø–æ–∏—Å–∫ –ø–æ —Å—Ç—Ä–æ–∫–µ. –û–Ω –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –∑–Ω–∞—á–µ–Ω–∏–µ, —Ä–∞–≤–Ω–æ–µ —Ç–æ–º—É, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –ø–æ–¥—Å—Ç—Ä–æ–∫–∞ –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ —Å—Ç—Ä–æ–∫–µ.

–°–∏–Ω—Ç–∞–∫—Å–∏—Å –≤—Å—Ç—Ä–æ–µ–Ω–Ω–æ–π —Ñ—É–Ω–∫—Ü–∏–∏ count () —Å–ª–µ–¥—É—é—â–∏–π: —Å–ª–µ–¥—É—é—â–∏–º –æ–±—Ä–∞–∑–æ–º:

< p> –ú–µ—Ç–æ–¥ —Å—Ç—Ä–æ–∫–∏ count () –ø—Ä–∏–Ω–∏–º–∞–µ—Ç —Ç—Ä–∏ –ø–∞—Ä–∞–º–µ—Ç—Ä–∞:

  • substring - —Å—Ç—Ä–æ–∫–∞, —Å—á–µ—Ç—á–∏–∫ –∫–æ—Ç–æ—Ä–æ–π –¥–æ–ª–∂–µ–Ω –±—ã—Ç—å –≤—ã—á–∏—Å–ª–µ–Ω —Å –±–æ–ª—å—à–µ–π —Å—Ç—Ä–æ–∫–æ–π. (–æ–±—è–∑–∞—Ç–µ–ª—å–Ω–æ)
  • start_pos - –ø–æ–∑–∏—Ü–∏—è –∏–Ω–¥–µ–∫—Å–∞, —Å –∫–æ—Ç–æ—Ä–æ–π –¥–æ–ª–∂–µ–Ω –Ω–∞—á–∏–Ω–∞—Ç—å—Å—è –ø–æ–∏—Å–∫ (–Ω–µ–æ–±—è–∑–∞—Ç–µ–ª—å–Ω–æ)
  • end_pos - –ø–æ–∑–∏—Ü–∏—è –∏–Ω–¥–µ–∫—Å–∞ –Ω–∞ –∫–æ—Ç–æ—Ä–æ–º –ø–æ–∏—Å–∫ –¥–æ–ª–∂–µ–Ω –æ—Å—Ç–∞–Ω–æ–≤–∏—Ç—å—Å—è (–Ω–µ–æ–±—è–∑–∞—Ç–µ–ª—å–Ω–æ)

–ü—Ä–∏–º–µ—Ä Python count (): –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–µ —Å—Ç—Ä–æ–∫

–î–∞–≤–∞–π—Ç–µ –∏—Å–ø–æ–ª—å–∑—É–µ–º –ø—Ä–∏–º–µ—Ä –¥–ª—è –¥–µ–º–æ–Ω—Å—Ç—Ä–∞—Ü–∏–∏ —Å—Ç—Ä–æ–∫–æ–≤–æ–≥–æ –º–µ—Ç–æ–¥–∞ count (). –°–∫–∞–∂–∏—Ç–µ —á—Ç–æ —É –Ω–∞—Å –µ—Å—Ç—å —Å—Ç—Ä–æ–∫–∞ Python , –∫–æ—Ç–æ—Ä–∞—è —Å–æ–¥–µ—Ä–∂–∏—Ç –ø–æ–º–µ—Å—è—á–Ω—É—é –¥–æ—Å–∫—É –ø–æ—á–µ—Ç–∞ –¥–ª—è –Ω–∞—à–µ–≥–æ –∫–ª–∞—Å—Å–∞. –ú—ã —Ö–æ—Ç–∏–º –∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –≠–º–∏–ª–∏ –ø–æ—è–≤–ª—è–µ—Ç—Å—è –Ω–∞ —ç—Ç–æ–π –Ω–∞–≥—Ä–∞–¥–µ. roll. –ú—ã –º–æ–≥–ª–∏ –±—ã –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥ –¥–ª—è –≤—ã—á–∏—Å–ª–µ–Ω–∏—è —ç—Ç–æ–≥–æ —á–∏—Å–ª–∞:

–ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç: 2.

–ù–∞—à –∫–æ–¥ —Ä–∞–±–æ—Ç–∞–µ—Ç –∞–Ω–∞–ª–æ–≥–∏—á–Ω–æ –º–µ—Ç–æ–¥—É list count (). –†–∞–∑–Ω–∏—Ü–∞ –≤ —Ç–æ–º, —á—Ç–æ –≤ —ç—Ç–æ–º –ø—Ä–∏–º–µ—Ä–µ –º—ã —É–∫–∞–∑–∞–ª–∏ —Å—Ç—Ä–æ–∫—É, –∞ –Ω–µ —Å–ø–∏—Å–æ–∫.

–ò—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–µ –∞—Ä–≥—É–º–µ–Ω—Ç–∞ –Ω–∞—á–∞–ª—å–Ω–æ–π –ø–æ–∑–∏—Ü–∏–∏

–ú—ã –º–æ–∂–µ–º –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –ê—Ä–≥—É–º–µ–Ω—Ç—ã start_pos –∏ end_pos, —á—Ç–æ–±—ã —É–∫–∞–∑–∞—Ç—å, –≥–¥–µ –¥–æ–ª–∂–µ–Ω –Ω–∞—á–∏–Ω–∞—Ç—å—Å—è –Ω–∞—à –ø–æ–∏—Å–∫. –°–∫–∞–∂–µ–º, –º—ã —Ö–æ—Ç–∏–º –∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –§—Ä—ç–Ω–∫ —Ñ–∏–≥—É—Ä–∏—Ä–æ–≤–∞–ª –≤ —Å–ø–∏—Å–∫–∞—Ö –ø–æ—á–µ—Ç–∞ —Å –º–æ–º–µ–Ω—Ç–∞ —Å–≤–æ–µ–≥–æ –ø–µ—Ä–≤–æ–≥–æ –ø–æ—è–≤–ª–µ–Ω–∏—è.

–ß—Ç–æ–±—ã –≤—ã—á–∏—Å–ª–∏—Ç—å —ç—Ç–∏ –¥–∞–Ω–Ω—ã–µ, –º—ã —Ö–æ—Ç–∏–º –∏–≥–Ω–æ—Ä–∏—Ä–æ–≤–∞—Ç—å –ø–µ—Ä–≤—ã–π —Ä–∞–∑, –∫–æ–≥–¥–∞ –æ–Ω –ø–æ—è–≤–∏–ª—Å—è –≤ —Å–ø–∏—Å–∫–∞—Ö –ø–æ—á–µ—Ç–∞. –ú—ã –º–æ–≥–ª–∏ –±—ã —Å–¥–µ–ª–∞—Ç—å —ç—Ç–æ, –∏—Å–ø–æ–ª—å–∑—É—è —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥:

–ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç: 1.

–•–æ—Ç—è –§—Ä—ç–Ω–∫ –¥–≤–∞–∂–¥—ã –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ –Ω–∞—à–µ–º —Å–ø–∏—Å–∫–µ –ø–æ—á–µ—Ç–∞ –¥–≤–∞–∂–¥—ã, –≤ –ø–µ—Ä–≤—ã–π —Ä–∞–∑ –æ–Ω –ø–æ—è–≤–ª—è–µ—Ç—Å—è –ø–µ—Ä–µ–¥ –∏–Ω–¥–µ–∫—Å–Ω–æ–π –ø–æ–∑–∏—Ü–∏–µ–π 6 –≤ –Ω–∞—à–µ–π —Å—Ç—Ä–æ–∫–µ. –ü–æ—Å–∫–æ–ª—å–∫—É –º—ã —É–∫–∞–∑–∞–ª–∏ –∞—Ä–≥—É–º–µ–Ω—Ç start_pos –∏ —É—Å—Ç–∞–Ω–æ–≤–∏–ª–∏ –¥–ª—è –Ω–µ–≥–æ –∑–Ω–∞—á–µ–Ω–∏–µ 6, –Ω–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ –∏–≥–Ω–æ—Ä–∏—Ä—É–µ—Ç –≤—Å–µ —Å–∏–º–≤–æ–ª—ã –ø–µ—Ä–µ–¥ —ç—Ç–∏–º –∑–Ω–∞—á–µ–Ω–∏–µ–º –∏–Ω–¥–µ–∫—Å–∞. –ò—Ç–∞–∫, –Ω–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç 1, –∞ –Ω–µ 2.

–ò—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–µ –∞—Ä–≥—É–º–µ–Ω—Ç–∞ –∫–æ–Ω–µ—á–Ω–æ–π –ø–æ–∑–∏—Ü–∏–∏

–ò–ª–∏, —Å–∫–∞–∂–µ–º, –º—ã —Ö–æ—Ç–∏–º —É–∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –≠–º–∏–ª–∏ –±—ã–ª–∞ –Ω–∞ –¥–æ—Å–∫–µ –ø–æ—á–µ—Ç–∞. –ø–µ—Ä–µ–¥ –µ–µ –ø–æ—Å–ª–µ–¥–Ω–µ–π –ø–æ–±–µ–¥–æ–π. –ú—ã –º–æ–∂–µ–º —Ä–∞—Å—Å—á–∏—Ç–∞—Ç—å —ç—Ç–æ, –∏—Å–ø–æ–ª—å–∑—É—è —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥:

"–ö–∞—Ä—å–µ—Ä–Ω–∞—è –∫–∞—Ä–º–∞ –≤–æ—à–ª–∞ –≤ –º–æ—é –∂–∏–∑–Ω—å, –∫–æ–≥–¥–∞ —è –±–æ–ª—å—à–µ –≤—Å–µ–≥–æ –≤ –Ω–µ–π –Ω—É–∂–¥–∞–ª–∞—Å—å, –∏ –±—ã—Å—Ç—Ä–æ –ø–æ–º–æ–≥–ª–∞ –º–Ω–µ –ø—Ä–æ–π—Ç–∏ –∫—É—Ä—Å –æ–±—É—á–µ–Ω–∏—è. –ß–µ—Ä–µ–∑ –¥–≤–∞ –º–µ—Å—è—Ü–∞ –ø–æ—Å–ª–µ –æ–∫–æ–Ω—á–∞–Ω–∏—è —É—á–µ–±—ã —è –Ω–∞—à–µ–ª —Ä–∞–±–æ—Ç—É —Å–≤–æ–µ–π –º–µ—á—Ç—ã, –∫–æ—Ç–æ—Ä–∞—è —Å–æ–æ—Ç–≤–µ—Ç—Å—Ç–≤–æ–≤–∞–ª–∞ –º–æ–µ–π —Ü–µ–Ω–Ω–æ—Å—Ç–∏ –∏ —Ü–µ–ª–∏ –≤ –∂–∏–∑–Ω–∏! "

–í–µ–Ω–µ—Ä–∞, –∏–Ω–∂–µ–Ω–µ—Ä-–ø—Ä–æ–≥—Ä–∞–º–º–∏—Å—Ç Rockbot

–ù–∞—à –º–µ—Ç–æ–¥ count () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ —Ä–∞–∑, –∫–æ–≥–¥–∞ –≠–º–∏–ª–∏ –±—ã–ª–∞ –≤ —Å–ø–∏—Å–∫–∞—Ö –ø–æ—á–µ—Ç–∞. –ü—Ä–æ–≥—Ä–∞–º–º–∞ Python –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç: 1.

–í –Ω–∞—à–µ–º –ø—Ä–∏–º–µ—Ä–µ –º—ã —É–∫–∞–∑–∞–ª–∏ –∞—Ä–≥—É–º–µ–Ω—Ç—ã start_pos –∏ end_pos. –î–ª—è –∞—Ä–≥—É–º–µ–Ω—Ç–∞ end_pos —É—Å—Ç–∞–Ω–æ–≤–ª–µ–Ω–æ –∑–Ω–∞—á–µ–Ω–∏–µ 49, —á—Ç–æ –Ω–∞—Ö–æ–¥–∏—Ç—Å—è –¥–æ —Ç–æ–≥–æ, –∫–∞–∫ –≤—Ç–æ—Ä–∞—è –≠–º–∏–ª–∏ –ø–æ—è–≤–∏—Ç—Å—è –≤ –Ω–∞—à–µ–π —Å—Ç—Ä–æ–∫–µ.

–≠–º–∏–ª–∏ –¥–≤–∞–∂–¥—ã —Ñ–∏–≥—É—Ä–∏—Ä–æ–≤–∞–ª–∞ –≤ –µ–∂–µ–º–µ—Å—è—á–Ω–æ–π —Ç–∞–±–ª–∏—Ü–µ –ø–æ—á–µ—Ç–∞. –ù–æ –µ–µ –∏–º—è –ø–æ—è–≤–∏–ª–æ—Å—å –≤ —Å–ø–∏—Å–∫–µ —Ç–æ–ª—å–∫–æ –æ–¥–∏–Ω —Ä–∞–∑ –ø–µ—Ä–µ–¥ –∏–Ω–¥–µ–∫—Å–Ω–æ–π –ø–æ–∑–∏—Ü–∏–µ–π 49 –≤ –Ω–∞—à–µ–º —Å–ø–∏—Å–∫–µ.

–ó–∞–∫–ª—é—á–µ–Ω–∏–µ

–ú–µ—Ç–æ–¥ count () –≤ Python –≤—ã—á–∏—Å–ª—è–µ—Ç, —Å–∫–æ–ª—å–∫–æ —Ä–∞–∑ –∫–æ–Ω–∫—Ä–µ—Ç–Ω–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ —Å—Ç—Ä–æ–∫–µ –∏–ª–∏ —Å–ø–∏—Å–∫–µ –≤ Python. count () –ø—Ä–∏–Ω–∏–º–∞–µ—Ç –æ–¥–∏–Ω –∞—Ä–≥—É–º–µ–Ω—Ç: –∑–Ω–∞—á–µ–Ω–∏–µ, –∫–æ—Ç–æ—Ä–æ–µ –≤—ã —Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –≤ —Å—Ç—Ä–æ–∫–µ –∏–ª–∏ —Å–ø–∏—Å–∫–µ.

–ö–æ–≥–¥–∞ count () –∏—Å–ø–æ–ª—å–∑—É–µ—Ç—Å—è —Å–æ —Å—Ç—Ä–æ–∫–æ–π, –æ–Ω –±—É–¥–µ—Ç –∏—Å–∫–∞—Ç—å –ø–æ–¥—Å—Ç—Ä–æ–∫—É –≤ —Å—Ç—Ä–æ–∫–µ –±–æ–ª—å—à–µ–≥–æ —Ä–∞–∑–º–µ—Ä–∞. –ó–∞—Ç–µ–º count () –≤–µ—Ä–Ω–µ—Ç –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ —Ä–∞–∑, –∫–æ—Ç–æ—Ä–æ–µ substring –≤—Å—Ç—Ä–µ—á–∞–µ—Ç—Å—è –≤ —Å—Ç—Ä–æ–∫–µ. –ö–æ–≥–¥–∞ count () –∏—Å–ø–æ–ª—å–∑—É–µ—Ç—Å—è —Å–æ —Å–ø–∏—Å–∫–æ–º, –æ–Ω –≤–µ—Ä–Ω–µ—Ç –∫–æ–ª–∏—á–µ—Å—Ç–≤–æ t –ù–∞–ø—Ä–∏–º–µ—Ä, –≤ —Å–ø–∏—Å–æ–∫ –±—ã–ª–æ –≤–Ω–µ—Å–µ–Ω–æ –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω–æ–µ –∑–Ω–∞—á–µ–Ω–∏–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 –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏—è –º–µ—Ç–æ–¥–∞ –ø–æ–¥—Å—á–µ—Ç–∞ Python –Ω–∞ —É—Ä–æ–≤–Ω–µ –ø—Ä–æ—Ñ–µ—Å—Å–∏–æ–Ω–∞–ª–æ–≤! –ß—Ç–æ–±—ã –Ω–∞–π—Ç–∏ –¥–æ–ø–æ–ª–Ω–∏—Ç–µ–ª—å–Ω—ã–µ —É—á–µ–±–Ω—ã–µ —Ä–µ—Å—É—Ä—Å—ã –ø–æ Python, –æ–∑–Ω–∞–∫–æ–º—å—Ç–µ—Å—å —Å –Ω–∞—à–∏–º –ø–æ–ª–Ω—ã–º —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–æ–º –ø–æ –∏–∑—É—á–µ–Ω–∏—é Python .

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