At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with these names could be kept in that shelf as in this example: bottom of shelf ---> [AAAJKRDFDEWAAYFYYKK]-----Top of shelf. All these packets are to be loaded on cars. The cars are lined in order, so that the packet could be loaded on them. The cars are also named [A, B, C, D, E,………….]. Each Car will load the packet with the same alphabet. So, for example, car ‘A’ will load all the packets with name ‘A’. Each particular car will come at the loading point only once. The cars will come at the loading point in alphabetical order. So, car ‘B’ will come and take all the packets with name ‘B’ from the shelf, then car ‘C’ will come. No matter how deep in the shelf any packet ‘B’ is, all of the ‘B’ packets will be displaced before the ‘C’ car arrives. For that purpose, some additional shelves are provided. The packets which are after the packet B, are kept in those shelves. Any one of these shelves contains only packets, having the same name. For example, if any particular shelf is used and if a packet with name X is in it, then only the packets having names X will be kept in it. That shelf will look like [XXXXXXX]. If any shelf is used once, then it could be used again only if it is vacant. Packets from the initial shelf could be unloaded from top only. Write a program that finds the minimum total number of shelves, including the initial one required for this loading process.
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Does anybody know anything about BirlaSoft? I got a job offer, they sent me a contract to sign and return, but thank God they didn't ask for any money! But, they said they would send me a check in the mail. And as my first "task" I would have to use that check to order a bunch of accounting software, and I would need to purchase this software ONLY from the vendors that THEY provide. Is this a scam to just get money? I'm wondering if they "own" the vendor they "work" with and launder money that way. I asked the person who was getting my information, as far as my name and address to send the check to, Why would I have to buy software to install in my home computer anyway? Couldn't they just send me a link for the software to download? I'm afraid of the check being fake. Because, if I deposit the check into my checking account and it turns out to be fake, then I'll owe the bank all that money! Hope to hear from someone soon. Thanks.
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