4

 import java.util.Scanner;
import java.lang.*;
public class jLB10
{
public static void main(String[] args)
{
         int i;
int a[]=new int[20];
int buck_rem=0,buck_cap=4,rate=3,sent,recv;
Scanner in = new Scanner(System.in);
System.out.println("Enter the number of packets");
int n = in.nextInt();
System.out.println("Enter the packets");
for(i=0;i<n;i++)
a[i]= in.nextInt();
System.out.println("Clock  \t packet size \t     accept   sent    remaining");
for(i=0;i<n;i++)
{
if(a[i]!=0)
{
if(buck_rem+a[i]>buck_cap)
    recv=-1;

else

{
 recv=a[i];

buck_rem+=a[i];

}

}

else

recv=0;

if(buck_rem!=0)

{

if(buck_rem<rate)

{

sent=buck_rem;

buck_rem=0;

}

else

{

sent=rate;

buck_rem=buck_rem-rate;

}

}

else

sent=0;

if(recv==-1)

System.out.println(+i+ "\t\t"  +a[i]+ "\t  dropped \t" + sent +"\t" +buck_rem);

else

System.out.println(+i+ "\t\t"  +a[i]+ "\t\t" +recv +"\t" + sent +"\t"+buck_rem);

}

}

}


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