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.

```#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];
}```

Enter number of elements you want to insert in first array 5
Enter element in descending order
Enter element 1: 45
Enter element 2: 34
Enter element 3: 30
Enter element 4: 26
Enter element 5: 10

Enter number of elements you want to insert in second array 3
Enter element in descending order
Enter element 1: 44
Enter element 2: 40
Enter element 3: 26

The Merged Array in Descending Order
45 44 40 34 30 26 10