round robin scheduling algorithm (Win)

rr_win.c

// Run VS dev terminal: start button -> serch "dev" -> start VS developer terminal
// Compile with: cl rr_win.c
// http://www.ssau.ru/files/education/metod_1/%D0%9A%D1%83%D0%BF%D1%80%D0%B8%D1%8F%D0%BD%D0%BE%D0%B2%20%D0%90.%D0%92.%20%D0%90%D0%BB%D0%B3%D0%BE%D1%80%D0%B8%D1%82%D0%BC%D1%8B%20%D0%BF%D0%BB%D0%B0%D0%BD%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F.pdf


#include<stdio.h>
#include<windows.h>

int main()
{
	int i,j,n,bu[10],wa[10],tat[10],t,ct[10],max;
	float awt=0,att=0,temp=0;
	system("cls");
	printf("Enter the number of processes -- ");
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
		printf("\nEnter Burst Time for process %d -- ", i+1);
		scanf("%d",&bu[i]);
		ct[i]=bu[i];
	}
	printf("\nEnter the size of time slice -- ");
	scanf("%d",&t);
	max=bu[0];
	for(i=1;i<n;i++)
		if(max<bu[i])
			max=bu[i];
	for(j=0;j<(max/t)+1;j++)
		for(i=0;i<n;i++)
			if(bu[i]!=0)
				if(bu[i]<=t)
				{
					tat[i]=temp+bu[i];
					temp=temp+bu[i];
					bu[i]=0;
				}
				else
				{
					bu[i]=bu[i]-t;
					temp=temp+t;
				}
	for(i=0;i<n;i++)
	{
		wa[i]=tat[i]-ct[i];
		att+=tat[i];
		awt+=wa[i];
	}
	printf("\nThe Average Turnaround time is -- %f",att/n);
	printf("\nThe Average Waiting time is --    %f",awt/n);
	printf("\n");
	printf("\n\tPROCESS\t BURST TIME \t WAITING TIME\tTURNAROUND TIME\n");
	for(i=0;i<n;i++)
	printf("\t%d \t %d \t\t %d \t\t %d \n",i+1,ct[i],wa[i],tat[i]);
	getch();
}