Consider we have a sequence of numbers arriving in sequential order (N numbers in total). How to develop a one-pass (that is, during the sequence 开发者_JS百科arrival) O(N) algorithm to find the numbe
Sorry if this question has been covered somewhere before. If it has please link me to it, I haven\'t been able to find a satisfactory answer as yet.
We have a database of swimmers with their times. To create a ranking we want to get the fastest time of each athlete.
i have a column ID and something like 1000 items, some of then were removed like id=90, id=127, id=326
I have a database called prices and there are 12 colum开发者_运维问答ns lets say. comp1, comp2, comp3, comp4, comp5, comp6 and soon.
If I want to select min and max values from a whole table I can use this: SELECT min(price) as min_price, max(price) as max_price FROM `prices`
Since there is no minlength=\"\" for input, how can I make an if statement that does the following: If the user has not input more than 3 charact开发者_如何学Pythoners it will not be saved in a data
I what to check a time wit开发者_Python百科h a case statement. How to do?Use ranges: case time when (Time.now - 60)..(Time.now) then puts \'within the last minute\'
I have a table with the following columns inspection_dt, contact_dt, description, product_mod, product_desc,
As far i know until now, the min version of a .js(javascript) file is obtaining by removing the unncessary blank spaces and comments, in order to reduce the file size.
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