diff --git a/Basic_Functions/addcourse.cpp b/Basic_Functions/addcourse.cpp
new file mode 100644
index 0000000..9670a31
--- /dev/null
+++ b/Basic_Functions/addcourse.cpp
@@ -0,0 +1,32 @@
+#include<iostream>
+using namespace std;
+void AddCourse(string codelist[],int creditlist[],int semesterlist[],string namelist[],string code,int credit,int semester,string name)
+{
+  if(isValidCourseCode(code))
+    if(isValidCreditHours(credit))
+      if(isValidSemester(semester))
+        if(isValidCourseName(name))
+          {
+          	codelist[counter]=code;
+          	creditlist[counter]=credit;
+          	semesterlist[counter]=semester;
+          	namelist[counter]=name;
+          	counter++;
+		  }
+        else
+        cout<<"INVALID COURSENAME"<<endl;
+      else 
+      cout<<"INVAID SEMESTER "<<endl;
+    else
+    cout<<"INVALID CREDIT HOUR"<<endl;
+  else
+  cout<<"INVALID COURSE CODE"<<endl;
+
+
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/deletecourse.cpp b/Basic_Functions/deletecourse.cpp
new file mode 100644
index 0000000..2b0ebd9
--- /dev/null
+++ b/Basic_Functions/deletecourse.cpp
@@ -0,0 +1,27 @@
+#include<iostream>
+using namespace std;
+void DeleteCourse(string codelist[],int creditlist[],int semesterlist[],string namelist[],string code)
+{
+	int o;
+	for(int i=0;i<counter;i++)
+	{
+		if(code==codelist[i])
+		 o=i;
+	}
+   for(int a=o;a<counter;a++)
+   {
+   	codelist[a]=codelist[a+1];
+   	creditlist[a]=creditlist[a+1];
+   	semesterlist[a]=semesterlist[a+1];
+   	namelist[a]=namelist[a+1];
+   }
+  
+  counter--;
+
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/editcourse.cpp b/Basic_Functions/editcourse.cpp
new file mode 100644
index 0000000..30064f1
--- /dev/null
+++ b/Basic_Functions/editcourse.cpp
@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+void EditCourse(string codelist[],int creditlist[],int semesterlist[],string namelist[],string code,int credit,int semester,string name)
+{
+	
+  if(isValidCourseCode(code))
+    if(isValidCreditHours(credit))
+      if(isValidSemester(semester))
+        if(isValidCourseName(name))
+          {
+          	codelist[global]=code;
+          	creditlist[global]=credit;
+          	semesterlist[global]=semester;
+          	namelist[global]=name;
+		  }
+        else
+        cout<<"INVALID COURSENAME"<<endl;
+      else 
+      cout<<"INVAID SEMESTER "<<endl;
+    else
+    cout<<"INVALID CREDIT HOUR"<<endl;
+  else
+  cout<<"INVALID COURSE CODE"<<endl;
+
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/loadCourses.cpp b/Basic_Functions/loadCourses.cpp
new file mode 100644
index 0000000..98a7d7b
--- /dev/null
+++ b/Basic_Functions/loadCourses.cpp
@@ -0,0 +1,79 @@
+#include<iostream>
+#include<fstream>
+using namespace std;
+bool loadCourses(string codelist[],string namelist[],int semesterlist[],int creditlist[])
+{
+	string line;
+	int a;
+	ifstream file1;
+	file1.open("Courses.txt");
+	if(file1.is_open())
+	{
+		for(int i=0;!file1.eof();i++)
+		{
+			getline(file1,line,',');
+			if(isValidCourseCode(line))
+			{
+				codelist[i]=line;
+				getline(file1,line,',');
+				if(isValidCourseName(line))
+			    {
+				namelist[i]=line;
+				  file1>>a;
+			      if(isValidCreditHours(a))
+			      {
+			      creditlist[i]=a;
+			         file1.ignore(1,',');
+			         file1>>a;
+			         if(isValidSemester(a))
+			         {
+				     semesterlist[i]=a;
+				     
+				     counter++;
+				     file1.ignore(1,'\0');
+		             }
+			         else
+			         {
+				     cout<<i+1<<" SEMESTER INVALID "<<endl;
+				     break;
+			         }
+			         
+			      }
+			      else
+			      {
+				  cout<<i+1<<" CREDIT HOUR INVALID "<<endl;
+				  break;
+			      }
+			    }
+			    else
+			    {
+				cout<<i+1<<" COURSE NAME IS INVALID "<<endl;
+				break;
+			    }
+			}
+			else
+			{
+				cout<<i+1<<" COURSE CODE IS INVALID "<<endl;
+				break;
+			}
+			
+			
+			
+			
+			
+			
+		}
+		cout<<"COURSES LOADED SUCCESSFULLY "<<endl<<endl;
+	}
+	else
+	{
+		cout<<"ERROR OPENING FILE OR FILE DOES NOT EXIST";
+	}
+	file1.close();
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/loadUsers.cpp b/Basic_Functions/loadUsers.cpp
new file mode 100644
index 0000000..d01fd09
--- /dev/null
+++ b/Basic_Functions/loadUsers.cpp
@@ -0,0 +1,52 @@
+#include<iostream>
+#include<fstream>
+#include<string>
+using namespace std;
+int counter1=0;
+bool loadUsers(string userslist[],string passwordslist[])
+{
+	string line;
+	ifstream user;
+	user.open("Users.txt");
+	if(user.is_open())
+	{
+		for(int i=0;!user.eof();i++)
+		{
+			getline(user,line,',');
+			userslist[i]=line;
+			cout<<userslist[i]<<endl;
+			getline(user,line);
+			passwordslist[i]=line;
+		
+			cout<<passwordslist[i]<<endl;
+			cout<<endl;
+			counter1++;
+		}
+	}
+	else
+	{
+		cout<<"Sorry, we are unable to run the program, as user data does not exist."<<endl<<endl;
+	}
+}
+int main()
+{
+	string username;
+    string password;
+    string userslist[100];
+    string passwordslist[100];
+    loadUsers(userslist,passwordslist);
+    cout<<"Username :  ";
+    cin>>username;
+    cout<<endl<<"Password :  ";
+    cin>>password;
+    cout<<endl;
+   if((username==userslist[0]&&password==passwordslist[0])||(username==userslist[1]&&password==passwordslist[1]))
+   {
+   	cout<<"OK DI WAZSH LAO ";
+   }
+   else
+   {
+   	cout<<"wargaye vai";
+   }
+    return 0;
+}
diff --git a/Basic_Functions/saveCourses.cpp b/Basic_Functions/saveCourses.cpp
new file mode 100644
index 0000000..c10b125
--- /dev/null
+++ b/Basic_Functions/saveCourses.cpp
@@ -0,0 +1,27 @@
+#include<iostream>
+#include<fstream>
+using namespace std;
+void saveCourses(string codelist[],string namelist[],int semesterlist[],int creditlist[],)
+{
+	ofstream file;
+	file.open("Courses.txt");
+	if(file.is_open())
+	{
+		for(int i=0;i<counter;i++)
+		{
+			file<<codelist[i]<<","<<namelist[i]<<","<<creditlist[i]<<","<<semesterlist<<endl;
+
+		}
+		cout<<"courses has been added successfully";
+	}
+	else
+	{
+		cout<<"ERROR OPENING FILE Courses.txt";
+	}
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/searchcourse.cpp b/Basic_Functions/searchcourse.cpp
new file mode 100644
index 0000000..d8bd565
--- /dev/null
+++ b/Basic_Functions/searchcourse.cpp
@@ -0,0 +1,22 @@
+#include<iostream>
+using namespace std;
+int searchcode(string code)
+{
+	bool flag=0;
+	for(int i=0;i<counter;i++)
+	{
+		if(code==codelist[i])
+		{
+			return i;
+			bool flag=1;
+		}
+	}
+   if(flag!=1)
+    return  -1;
+
+}
+int main()
+{
+
+return 0;
+}
diff --git a/Basic_Functions/validcoursecode.cpp b/Basic_Functions/validcoursecode.cpp
new file mode 100644
index 0000000..bf44930
--- /dev/null
+++ b/Basic_Functions/validcoursecode.cpp
@@ -0,0 +1,10 @@
+#include<iostream>
+using namespace std;
+
+int main()
+{
+	string code;
+	cin>>code;
+	cout<<isValidCourseCode(code)<<endl;
+	return 0;
+}
diff --git a/Basic_Functions/validcoursename.cpp b/Basic_Functions/validcoursename.cpp
new file mode 100644
index 0000000..c2a1a23
--- /dev/null
+++ b/Basic_Functions/validcoursename.cpp
@@ -0,0 +1,24 @@
+#include<iostream>
+#include<iomanip>
+using namespace std;
+bool isValidCourseName(string coursename)
+{
+	bool flag=0;
+	int length=coursename.size();
+	for(int i=0;i<length;i++)
+	{
+		if((coursename[i]>='A'&&coursename[i]<='Z')||(coursename[i]>='a'&&coursename[i]<='z')||coursename[i] == ' ')
+		flag=1;
+		else
+		return 0;
+	}
+	return 1;
+}
+int main()
+{
+	int a;
+	string name;
+	getline(cin,name);
+	cout<<isValidCourseName(name)<<endl;
+	return 0;
+}
diff --git a/Basic_Functions/validcredithours.cpp b/Basic_Functions/validcredithours.cpp
new file mode 100644
index 0000000..7068612
--- /dev/null
+++ b/Basic_Functions/validcredithours.cpp
@@ -0,0 +1,21 @@
+#include<iostream>
+#include<iomanip>
+using namespace std;
+bool isValidCreditHours(int credit)
+{
+	if(credit>0&&credit<4)
+	
+		return 1;
+	
+	else
+	 
+		return 0;
+	
+}
+int main()
+{
+	int a;
+	cin>>a;
+	cout<<isValidCreditHours(a)<<endl;
+	return 0;
+}
diff --git a/Basic_Functions/validsemester.cpp b/Basic_Functions/validsemester.cpp
new file mode 100644
index 0000000..b2ac105
--- /dev/null
+++ b/Basic_Functions/validsemester.cpp
@@ -0,0 +1,21 @@
+#include<iostream>
+#include<iomanip>
+using namespace std;
+bool isValidSemester(int s)
+{
+   if(s>0&&s<9)
+   {
+   	  return 1;
+   }
+   else
+   {
+   	return 0;
+   }
+}
+int main()
+{
+	int a;
+	cin>>a;
+	cout<<isValidSemester(a)<<endl;
+	return 0;
+}
diff --git a/Basic_Functions/viewcourses.cpp b/Basic_Functions/viewcourses.cpp
new file mode 100644
index 0000000..1b49a52
--- /dev/null
+++ b/Basic_Functions/viewcourses.cpp
@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+void ViewCourses(string codelist[],int creditlist[],int semesterlist[],string namelist[])
+{
+for(int i=0;i<counter,i++)
+ cout<<codelist[i]<<"      "<<string namelist[i]<<"     "<<creditlist[i]<<"     "<<semesterlist[i]<<endl;
+
+}
+int main()
+{
+
+
+    return 0;
+}
diff --git a/Basic_Functions/viewcoursesbysemester.cpp b/Basic_Functions/viewcoursesbysemester.cpp
new file mode 100644
index 0000000..974efe3
--- /dev/null
+++ b/Basic_Functions/viewcoursesbysemester.cpp
@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+void ViewSemesterCourses(string codelist[],int creditlist[],int semesterlist[],string namelist[],int semester)
+
+{
+for(int i=0;i<counter,i++)
+  if(semester==semesterlist[i])
+    cout<<codelist[i]<<"      "<<string namelist[i]<<"     "<<creditlist[i]<<endl;
+
+}
+int main()
+{
+
+
+    return 0;
+}