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#include<iostream>
#include<stdlib.h>
#include<conio.h>
#include <windows.h>
#define MAX 100
COORD coord = {0, 0};
COORD max_res,cursor_size;
void gotoxy (int x, int y)
{
coord.X = x; coord.Y = y; // X and Y coordinates
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}
using namespace std;
int noProcess,aTs,ttB=0;
struct process{
int iD,bT,bbT,aT,cT,tAT,wT;
};
process * pArray= new process[MAX];
int x=1,m=1,d;
void madeGanttChar(int id[],int ct[],int z){
int i=0,L=1;
d=0;
ct[0]=0;
for( m =1,x=1;m<=z;m++,x++){
if(m%15==0){
d+=5;
x=1;
gotoxy(x*7,d+2);
}
gotoxy(x*7,1+d);
cout<<" ______";
gotoxy(x*7,1+d);
cout<<""<<ct[m-1]<<endl;
gotoxy(x*7,2+d);
i=m-1;
cout<<"| P"<<id[i];
gotoxy(x*7+7,2+d);
cout<<"|"<<endl;
gotoxy(x*7,3+d);
cout<<"|______|"<<endl;
}
gotoxy(x*7,1+d);
cout<<""<<ct[m-1]<<endl;
}
void schedule(int noProcess){
process *ReadyQueue[MAX];
int length = noProcess;
int m=0,i=0;
int id[MAX],ct[MAX];
int cTValue = 0;
do{
cout<<"Executed "<<i+1<<endl;
if(m<MAX){
for(int j= 0 ;j<noProcess;j++){
if(pArray[j].aT==i &&pArray[j].bT>0){
ReadyQueue[m++] = &pArray[j];
}
}
}
int minIndex = 0;
for(int x = 0 ;x<m;x++){
if(ReadyQueue[x]->bT>0){
minIndex = x;
}
}
int min=ReadyQueue[minIndex]->bT;
process *minProcess = *(&ReadyQueue[minIndex]);
int minPid;
for(int k=0 ; k<m;k++){
if(ReadyQueue[k]->bT <= min && ReadyQueue[k]->bT>0){
minProcess = *(&ReadyQueue[k]);
minPid = ReadyQueue[k]->iD;
min = minProcess->bT;
}
}
cout<<minProcess->iD<<endl;
cTValue++;
minProcess->cT = cTValue;
minProcess->bT -=1;
minProcess->tAT = minProcess->cT - minProcess->aT;
minProcess->wT = minProcess->tAT - minProcess->bbT;
system("cls");
id[i]= minProcess->iD;
ct[1+i]= minProcess->cT;
madeGanttChar(id,ct,i+1);
gotoxy(0,2);
i++;
}while(i<ttB );
}
int main(){
cout<<"How many Process are there: \n";
cin>>noProcess;
process *n;
cout<<"ProcessID \t\tArrivalTime \t\tBurstTime\t\t\n";
for(int i=0;i<noProcess;++i){
n = new process;
cin>>n->iD;
int bt;
cin>>n->aT;
cin>>bt;
n->bT = bt;
ttB+=bt;
n->bbT = bt;
pArray[i]= (*n);
}
cin.ignore();
schedule(noProcess);
gotoxy(8,8+d-1);
cout<<"PID \t\tBT \t\tAT\t\tCT\t\tTAT \t\tWT\n";
for(int i=0;i<noProcess;++i){
gotoxy(8,8+d+i);
cout<<pArray[i].iD<<"\t\t"<<pArray[i].bbT<<" \t\t"<<pArray[i].aT<<" \t\t"<<pArray[i].cT<<" \t\t"<<pArray[i].tAT<<" \t\t"<<pArray[i].wT<<endl;
}
cout<<"The Ending time of Pi(i=4) : "<<pArray[3].cT;
}
/*
// for same arrival time
1 0 10
2 0 29
3 0 3
4 0 7
5 0 12
//for different Arrival Time
1 0 10
2 1 29
3 1 3
4 2 7
5 2 12
// sdfsdf sfs
1 0 7
2 2 4
3 4 1
4 5 4
*/
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