Assignments » Single Dimension Array  »  Set1  » Solution 9

Suppose X. Y, Z are arrays of integers of size M, N, and M + N respectively. The numbers in array X and Y appear in descending order. Write a user-defined function in C++ to produce third array Z by merging arrays X and Y in descending order.

Source Code

#include<iostream>
using namespace std;

void Merge(int A[], int B[], int C[], int N, int M, int &K);

int main()
{
	int A[100], B[100], C[200],i,n,m,k;

	cout<<"\nEnter number of elements you want to insert in first array ";
	cin>>n;

	cout<<"Enter element in descending order\n";

	for(i=0;i<n;i++)
	{
		cout<<"Enter element "<<i+1<<":";
		cin>>A[i];
	}

	cout<<"\nEnter number of elements you want to insert in second array ";
	cin>>m;

	cout<<"Enter element in descending order\n";

	for(i=0;i<m;i++)
	{
		cout<<"Enter element "<<i+1<<":";
		cin>>B[i];
	}

	Merge(A,B,C,n,m,k);

	cout<<"\nThe Merged Array in Descending Order"<<endl;

	for(i=0;i<k;i++)
	{
		cout<<C[i]<<" ";
	}

	return 0;
}

void Merge(int A[], int B[], int C[], int N, int M, int &K)
{
	int I=0, J=0;
	K=0;
	
	while (I<N && J<M)
	{
		if (A[I]>B[J])
			C[K++]=A[I++];
		else if (A[I]<B[J])
			C[K++]=B[J++];
		else
		{
			C[K++]=A[I++];
			J++;
		}
	}

	for (int T=I;T<N;T++)
		C[K++]=A[T];

	for (int T=J;T<M;T++)
		C[K++]=B[T];
}

Output