⚡ Build the skills to land top-paying quant jobs. Offer ends in --d --h --m --s-- days -- hours -- minutes -- seconds.
⚡ Build the skills to land top-paying quant jobs. Offer ends in 19d 08h 35m 27s19 days 8 hours 35 minutes 27 seconds.
Light bulbs are numbered to , and kept off initially. First person comes and toggles all the bulbs which are multiple of , i.e. he switches all bulbs to on. Second person toggles all multiples of , i.e he turns of even bulbs. Third person comes and toggles all multiples of . This process continues till persons pass. After this, how many bulbs are ON?
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