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Everything posted by fizzlesticks

  1. scores[k] is a double. You can't dereference a double.
  2. You can use anything you would would use in a normal if statement. if wkd[1] == 'Sunday' or wkd[1] == 'Saturday' or if wkd[1] in ('Sunday', 'Saturday')
  3. You use things that don't need indenting. For example here's elpiops answer in 1 line: print(dict((lambda d: (d, [d[name].add(item) for name, item in [("Thomas", "pen"), ("Mike", "pencilcase"), ("Thomas", "rubber"), ("Tom", "scissors")]])[0])(__import__('collections').defaultdict(set))))
  4. Anything that can be written in Python can be written in 1 line, it might look silly sometimes though.
  5. Hashed, not encrypted. It could be encrypted, though that's almost as bad as plain text. Yes, many website store your last X passwords so you can't reuse them. They're still hashed and if they're not your current password that shouldn't be a problem.
  6. std::deques have tons of overhead and are inefficient in how they store data compared to a std::vector. For a smallish program like you'll never be able to notice the difference but it's something to keep in mind for other things. std containers have constructors that can do this work for you. std::deque<std::string> uMathCont(std::cbegin(uMathInput), std::cend(uMathInput)); However when you iterate over the input string you're iterating over characters not strings, so it should really be std::deque<char>. edit: if you're using a c++17 compatible comp
  7. std::getline Should pretty much not be used. Unless you plan on allowing equations that are millions of characters long std::vector will be better in every way (even push_front.)
  8. Check out java.util.function, they have ways of doing the same thing. There's not really anything "non OOP" about storing then calling a function pointer.
  9. What language do you usually use? Pretty much every popular language has some kind of function pointer like thing that works just like this.
  10. object.bar is just a normal object. It has a __call__ member function that gets invoked when you call object.bar(). So object.bar() calls the object.bar object. Libraries like pyqt need the reference to the object so they are able to invoke it whenever they need to. If you try passing object.bar() to set a listener your giving qt whatever the bar() method returns instead of the bar object itself.
  11. You can get the input as a string and convert it yourself using the stoi function or using a stringstream to convert it in a way similar to cin.
  12. Don't mix input methods. Use getline everywhere.
  13. Without seeing your code we can't really help. But I'm guessing you're using std::cin >> for input which will only read input up to a space character. You can use std::getline to get around that.
  14. list(set(s) ^ set(t))
  15. I think so but it's hard to tell from the pictures. Do you still get the error after you moved the loop? And for adding the '*'s you don't need to do a pop and insert you can just change the value directly. met_data_list[j] = '*'
  16. You have 1 for loop inside your other for loop, it should be outside that loop. Also if nesting loops you shouldn't use the same variable name for both.
  17. Replacing the count with a * only needs to be done once, not every time through the main loop. After you get to 10 of some character you're trying to add '*' + 1.
  18. You could either pipe the output from the program to a python script or use the subprocess module to run the program from the python script and capture the output that way. To pipe the output, from the command line you would run BarcodeReader.exe | py my_python_script.py where my_python_script.py is using the input() function to get input. Or using the subprocess module make a script that does something like: import subprocess as sp proc = sp.Popen(['path/to/barcodereader.exe'], stdout=sp.PIPE) out = proc.stdout.read() print(out)
  19. You need to import time. If you open a command window / terminal and run it from there the window will stay open and you can see what error you're getting.
  20. The eof flag gets set when something tries to read past the end of file, because of how the getline and >> functions work this will never happen. You need to use .good() or cast to bool instead of .eof().
  21. The sample code is written in Python 2 where '/' is integer division. To accomplish the same thing in Python 3 you can use '//'.
  22. If you use vcpkg you shouldn't need to do anything but the last step from that tutorial to set the subsystem (if you want something besides the default.) And I use dark theme so purple is just a normal color for me so I have no idea what that might mean.