D1X questions

• Array with custom indices
• A way to prove that there's no greedy algorithm that obtains optimal solution?
• Avoid simplification in apply()
• Plotting a simple 3d numpy array using matplotlib
• Automatically curving an arc when it is overlapping with another one
• C++ make a variable type depend on user input
• How to inherit class from different file?
• Loading a .rds file in Pandas

D1X answers