C Program to show and example for FCFS scheduling

C Program to show and example for FCFS scheduling

 #include<stdio.h>

void main()
{
        int i,k,s=0,r=0,x=0,a[30],t[30],w[30],e[30];
        float n,m,p=0;
        printf("Enter the number of process: ");
        scanf("%f",&n);
        printf("Enter the execution time: ");
        for(i=0;i<n;i++)
        {
                printf("i=%d n=%f\n",i,n);
                scanf("%d",&a[i]);
                e[i]=a[i];
        }
        printf("After First come First serve scheduling: \n");
        w[0]=0;
        t[0]=a[0];
        for(i=1;i<n;i++)
        {
                w[i]=t[i-1];
                t[i]=t[i-1]+a[i];
        }
        printf("Process \tBurst Time \tTurn Around Time \n");
        float tt=0,wt=0;
        for(i=0;i<n;i++)
        {
                printf("%d \t\t %d \t\t %d \t\t %d \t\t \n",i+1,e[i],w[i],t[i]);
                tt=tt+t[i];
                wt=wt+w[i];
        }
        printf("Average waiting time=%f\n",wt/n);
        printf("Average turn around time=%f\n",tt/n);
}