Here is a C++ program to merge two arrays
SOURCE CODE OUTPUT
#include<iostream>
using namespace std;
int main()
{
int i=0,j=0,k=0,a1[20],a2[20],a3[40],num;
cout<<"How many elements to be stored (max 20) : ";
cin>>num;
cout<<"Enter elements of array a1 : ";
for(int i=0;i<num;i++)
cin>>a1[i];
cout<<"Enter elements of array a2 : ";
for(int i=0;i<num;i++)
cin>>a2[i];
while(k<2*num)
{
if(a1[i]<a2[j])
{
a3[k]=a1[i];
i++,k++;
}
if(i>=num)
while(j<num)
{
a3[k]=a2[j];
j++,k++;
}
if(a1[i]>a2[j])
{
a3[k]=a2[j];
j++,k++;
}
if(j>=num)
while(i<num)
{
a3[k]=a1[i];
i++,k++;
}
}
cout<<"After merging of two arrays : ";
for(int i=0;i<2*num;i++)
cout<<a3[i]<<" ";
return 0;
}
using namespace std;
int main()
{
int i=0,j=0,k=0,a1[20],a2[20],a3[40],num;
cout<<"How many elements to be stored (max 20) : ";
cin>>num;
cout<<"Enter elements of array a1 : ";
for(int i=0;i<num;i++)
cin>>a1[i];
cout<<"Enter elements of array a2 : ";
for(int i=0;i<num;i++)
cin>>a2[i];
while(k<2*num)
{
if(a1[i]<a2[j])
{
a3[k]=a1[i];
i++,k++;
}
if(i>=num)
while(j<num)
{
a3[k]=a2[j];
j++,k++;
}
if(a1[i]>a2[j])
{
a3[k]=a2[j];
j++,k++;
}
if(j>=num)
while(i<num)
{
a3[k]=a1[i];
i++,k++;
}
}
cout<<"After merging of two arrays : ";
for(int i=0;i<2*num;i++)
cout<<a3[i]<<" ";
return 0;
}
Any questions regarding to program please write in comments.
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