import os


preH = open("pre.h", "r").read()
preCpp = open("pre.cpp", "r").read()

for dayNum in range(1, 26):
    pad = f'{dayNum:02}'
    dirName = f"src/days/{pad}"
    try:
        os.mkdir(dirName)
    except OSError:
        pass
    with open(f"{dirName}/Day{pad}.h", "w") as file:
        file.write(preH.replace("XX", pad))
    with open(f"{dirName}/Day{pad}.cpp", "w") as file:
        file.write(preCpp.replace("XX", pad))