Basic Input / Output in C++ https://www.geeksforgeeks.org/basic-input-output-c/ C++ IO Streams and File Input/Output https://www3.ntu.edu.sg/home/ehchua/programming/cpp/cp10_io.html#:~:text=C%2FC%2B%2B%20IO%20are%20based,another%20program)%20into%20the%20program.