C :: Time Scheduling Algorithms Program

I am an IT college student and this is a self-assigned project i have done in an attempt to learn programming in C AND at the same time how time scheduling of an OS works (Both done in order to prepare for upcoming semester exams) using FCFS ,SJF, RR and PS algorithms (planning on adding SRT too sometime soon). (took me 9 hours total work time including validations). What i wanna know is from more seasoned coders if i am on the right track. *cross fingers*

Code:

#include <stdio.h>
#include <stdlib.h>
#define P_Q 1000

int main(int argc, char *argv[])
{
float min_value,
}

[code]....