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Pankajcoder1 · web-flow · commit 64f6493c634a · 2020-02-19T02:11:54.000+05:30
diff --git a/cpu_scheduling/first_come_first_serve.cpp b/cpu_scheduling/first_come_first_serve.cpp
@@ -0,0 +1,41 @@
+#include<iostream>
+using namespace std;
+
+int main()
+{
+	int no_of_process,temp;
+	float sum=0;
+	cout<<"enter no of process : ";
+	cin>>no_of_process;
+	int *arrival_time=new int(no_of_process);
+	int *compilation_time=new int(no_of_process);
+	cout<<"now enter arrival time of all process : ";
+	for(int i=0;i<no_of_process;i++)
+	{
+		cin>>arrival_time[i];
+	}
+	cout<<"now enter burst time of all process : ";
+	for(int i=0;i<no_of_process;i++)
+	{
+		cin>>temp;
+		sum=sum+temp;
+		// I directly compute compilation time.
+		compilation_time[i]=sum;
+	}
+	cout<<"Now T.A.time of each process is : ";
+	sum=0;
+	for(int i=0;i<no_of_process;i++)
+	{
+		cout<<(compilation_time[i]-arrival_time[i])<<" ";
+		sum=sum+compilation_time[i]-arrival_time[i];
+	}
+	cout<<"\nAverage T.A time time is : "<<sum/no_of_process<<endl;
+	cout<<"Now wating time of each process is : ";
+	sum=0;
+	for(int i=0;i<no_of_process;i++)
+	{
+		cout<<(compilation_time[i-1]-arrival_time[i])<<" ";
+		sum=sum+compilation_time[i-1]-arrival_time[i];
+	}
+	cout<<"\nNow average wating time of all process is : "<<sum/no_of_process<<endl;
+}
