TheAlgorithms-C-Plus-Plus/List Array.cpp

#include<iostream>
using namespace std;

struct list
{
	int data[50];
	int top=0;
	bool isSorted=false;
	
	int BinarySearch(int *array, int first, int last, int x)
	{
		if(last<first)
		{
			return -1;
		}
		int mid=(first+last)/2;
		if(array[mid]==x)
			return mid;
		else if(x<array[mid])
			return (BinarySearch(array, first, mid-1, x));
		else if(x>array[mid])
			return (BinarySearch(array, mid+1, last, x));
	}

	int LinarSearch(int *array, int x)
	{
		for (int i = 0; i < top; i++)
		{
			if (array[i]==x)
			{
				return i;
			}
		}

		return -1;
	}

	int Search(int x)
	{
		int pos=-1;

		if (isSorted)
		{
			pos=BinarySearch(data, 0, top-1, x);
		}

		else
		{
			pos=LinarSearch(data, x);
		}

		if (pos!=-1)
		{
			cout<<"\nElement found at position : "<<pos;
		}
		else
		{
			cout<<"\nElement not found";
		}
		return pos;
	}
	
	void Sort()
	{
		int i, j, pos;
		for(i=0; i<top; i++)
		{
			int min=data[i];
			for(j=i+1; j<top; j++)
			{
				if(data[j]<min)
				{
						pos=j;
						min=data[pos];
				}
			}
			
			int temp=data[i];
			data[i]=data[pos];
			data[pos]=temp;
		}
		isSorted=true;
	}
	
	void insert(int x)
	{
		if(!isSorted)
		{

			if(top==49)
			{
				cout<<"\nOverflow";
			}
			else
			{
				data[top]=x;
				top++;
			}
		}

		else
		{
			int pos=0;
			
			for (int i = 0; i < top-1; i++)
			{
				if(data[i]<=x && x<=data[i+1])
				{
					pos=i+1;
					break;
				}
			}
			if (pos==0)
			{
				pos=top-1;
			}
			
			
			
			for (int i = top; i > pos; i--)
			{
				data[i]=data[i-1];
			}
			top++;
			data[pos]=x;
		}
	}

	void Remove(int x)
	{
		int pos=Search(x);
		cout<<"\n"<<data[pos]<<" deleted";
		for (int i = pos; i < top; i++)
		{
			data[i]=data[i+1];
		}
		top--;
	}

	void Show()
	{
		for (int i = 0; i < top; i++)
		{
			cout<<data[i]<<"\t";
		}
	}
};

int main()
{
	list L;
	int choice;
	int x;
	do
	{	
		cout<<"\n1.Insert";
		cout<<"\n2.Delete";
		cout<<"\n3.Search";
		cout<<"\n4.Sort";
		cout<<"\n5.Print";
		cout<<"\n\nEnter Your Choice : ";
		cin>>choice;
		switch (choice)
		{
			case 1: cout<<"\nEnter the element to be inserted : ";
					cin>>x;
					L.insert(x);
					break;
			case 2: cout<<"\nEnter the element to be removed : ";
					cin>>x;
					L.Remove(x);
					break;
			case 3: cout<<"\nEnter the element to be searched : ";
					cin>>x;
					L.Search(x);
					break;
			case 4: L.Sort();
					break;
			case 5:	L.Show();
					break;
		}
	}
	while(choice!=0);
	return 0;
}