Karl Coder

This problem is from ICPC competition that I participated in on 7th of October, 2023. Problem statement Karl is an aspiring C programmer, and is excited by the risks and rewards of low-level manual memory management. In the program he currently develops, he stores a string containing N non-zero bytes into a buffer named “buf”. By mistake he accidentally made the buffer 2N bytes in size. The last bytes N of the buffer consists of only zero-bytes.