#define FRAME_TIME 250

main()
{
float S1, S2, G, J, val[100] ;
int I, n, K, delay ;
void wait() ;
clrscr() ;
printf("Please Give the Total Load : ");
scanf("%d", &n);
printf("Please Enter the value of load \n");
for (I=0; I<n; I++)
{
scanf("%f", &val[I]);
}
clrscr();
printf("\nOUTPUT 1: (THROUGHPUT Vs LOADCURVE)\n\n");
printf("s=g*exp(-G) FOR SLOTTED ALOHA * \n");
printf("s=g*exp(-2G) FOR PURE ALPHA #\n");
printf("\n------ (THROUGHPUT PER FRAME TIME)----\n");
for(K=0; K<n; K++)
{
G=val[K];
S1 = G * exp (-G);
S2 = G * exp(-2 * G);
printf("%1.3f", G );
for (I=0; I <=S1*20; I++)
{
printf(" ");
}
printf("*");
for(I=S2*20; I<=S2*75; I++ )
{
printf(" ");
}
printf("#\n");
}
printf("G (ATTEMPTS PER PACKET TIME) \n\n");
wait() ;
getch() ;
clrscr() ;
printf("\nOUTPUT 2 (DELAY Vs THROUGHPUT) \n\n");
printf("\n-----(THOUGHPUT PER FRAME TIME)----\n");
for(K=0; K<n; K++)
{
G=val[K];
S1 = G * exp (-G);
printf("3");
for (I=0; I <=S1*2.7; I++)
{
printf(" ");
}
printf("*\n");
}
printf("\n");
printf("---- DELAY -----");
wait();
getch();
clrscr();
}

void wait()
{
sound(440);
delay(300);
nosound();
}

OUTPUT of (THROUGHPUT V/S LOADCURVE)

s=g*exp(-G) FOR SLOTTED ALOHA *

s-g*exp(-2G) FOR PURE ALPHA #