I have a question about a problem.
I have 1 problem: There are n flower shops, the i-th shop sells ki different kinds of flowers. Need to buy n types of flowers from n given shops, each shop buys 1 type of flowers, so that n types of flowers after purchase are distinguished.
. n <= 2000 . ki <= 5
can someone help me with an idea to solve this problem.
thanks for help !!!
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