#include <stdio.h>
#include <stdlib.h>
struct node {

    int time_arr , arrivel , sertime, timeserbeg , timeQ , timesevend , timespend ;
    node(){}
};

node seg[10000];

int main()
{
    printf("\t\tSimulation of Single Queueing Systems\n\n");
    int t ;
    printf("Enter The Number of customer : ");
    scanf("%d" , &t);
    seg[1].time_arr = 0;
    printf("Enter The Arrival Times: ");
    for(int i = 2 ; i <= t ; ++i) scanf("%d" , &seg[i].time_arr);
    for(int i = 1 ; i <= t ; ++i) seg[i].arrivel = seg[i].time_arr;
    for(int i = 1 ; i <= t ; ++i) seg[i].arrivel += seg[i - 1].arrivel;
    printf("Enter The Service Times: ");
    for(int i = 1 ; i <= t ; ++i) scanf("%d" , &seg[i].sertime);
    seg[1].timeserbeg = seg[1].timeQ = 0;
    seg[1].timesevend = seg[1].timespend = seg[1].sertime;
    printf("\n\n");
    for(int i = 2 ; i <= t ; ++i)
    {
        if(seg[i].arrivel < seg[i - 1].timesevend)
        {
            seg[i].timeserbeg = seg[i - 1].timesevend;
            seg[i].timeQ = abs(seg[i].arrivel - seg[i - 1].timesevend);
        }
        else
        {;
            seg[i].timeserbeg = seg[i].arrivel;
            seg[i].timeQ = 0;
        }
        seg[i].timesevend = seg[i].timeserbeg + seg[i].sertime;
        seg[i].timespend = seg[i].timeQ + seg[i].sertime;
    }
    printf("Simulation Table:\n\n\n");
    printf("|  C |TSLA |  AT |  ST | TSB | WTQ |TSE | STS | IT|");
    printf("\n---------------------------------------------------\n");
    for(int i = 1 ; i <= t ; ++i)
    {
        printf("|%3d | %3d | %3d | %3d | %3d | %3d |%3d | %3d |" , i , seg[i].time_arr , seg[i].arrivel ,
                seg[i].sertime,seg[i].timeserbeg , seg[i].timeQ , seg[i].timesevend , seg[i].timespend );
        if(seg[i].timeQ || i == 1) printf("  0|\n");
        else printf("%3d|\n" , abs( seg[i].timeserbeg - seg[i - 1].timesevend) );
    }
    printf("---------------------------------------------------\n");
    double countST=0,countWQ=0;
    for(int i = 1 ; i <= t ; ++i){
        countWQ= countWQ+seg[i].timeQ;
        countST=  countST+ seg[i].sertime;

    }

    printf("\n\nAvarage Waiting Time:%0.3lf",countWQ/(t-1));
    printf("\nAvarage service Time:%0.3lf\n\n",countST/(t-1));




    return 0;

}