add: project 2

project2/README.md

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+# CS3502 Project 2: CPU Scheduling Simulation
+
+This directory contains a simulator for various CPU scheduling algorithms.
+
+## Compilation
+
+If you have [Nix](https://nixos.org/) installed:
+
+```sh
+nix run .#cpu-schedulers
+```
+
+Otherwise, the code may be compiled using GNU Make:
+
+``` sh
+make
+./build/cpu-schedulers
+```
+
+## Usage
+
+This program supports seven scheduling algorithms:
+
+- `sjf` - Shortest Job First
+- `fcfs` - First Come First Serve
+- `roundrobin` - Round Robin
+- `priority` - Priority Queue
+- `priorityaging` - Priority Queue with Aging
+- `lottery` - Lottery
+- `srtf` - Shortest Remaining Time First
+
+The `compare` option can also be entered to run all schedulers at once.
+
+Test data must be entered by the user; all time values must be given in
+integers. Flags include `-v` for verbose debug output, and `-m` for
+machine-readable output (prints data in CSV format).