FCFS Scheduling Operating System

#include<iostream>
#include<iomanip>
using namespace std;
 int main()
{
    int n,bt[10],wt[10],tat[10];//array,to take burst,waiting,turn around time
    float avwt=0,avtat=0;
    cout<<"Enter number of processes:";
    cin>>n;
    cout<<"\nEnter Process's Burst Time\n";
    int i,j;
    for(i=0;i<n;i++)
    {
        cout<<"P["<<i+1<<"]:";
        cin>>bt[i];
    }
    wt[0]=0;    //waiting time for first process is 0
    for(i=1;i<n;i++)
    {
        wt[i]=0;
        for(j=0;j<i;j++)
            wt[i]+=bt[j];
    }
     cout<<"\nProcess\t\tBurst Time\tWaiting Time\tTurnaround Time";//calculating turnaround time
    for(i=0;i<n;i++)
    {
        tat[i]=bt[i]+wt[i];
        avwt+=wt[i];
        avtat+=tat[i];
        cout<<"\nP["<<i+1<<"]"<<"\t\t"<<bt[i]<<"\t\t"<<wt[i]<<"\t\t"<<tat[i];
    }
    avwt=(float)avwt/i;
    avtat=(float)avtat/i;
    cout<<"\n\nAverage Waiting Time:"<<setprecision(2)<<avwt;
    cout<<"\nAverage Turnaround Time:"<<setprecision(2)<<avtat;
    return 0;
}