int imam1[30];

Mod(imam1,30);

void Mod (int b[],int ArrsySize)

#include <iostream>
#include <iomanip>
using namespace std;
void modi(int [],int);
void modiElment(int );
int main()
{
const int ArraySize=5;
int a[ArraySize]={0,1,2,3,4};
cout<<"The Values of the original array are:"<<endl;
for (int i=0;i<ArraySize;i++)
cout<<setw(3)<<a[i];
cout<<endl;
modi(a,ArraySize);//array a passed call-by-reference
cout<<"The Values of the modi array are:"<<endl;
for (int i=0;i<ArraySize;i++)
cout<<setw(3)<<a[i];
cout<<endl<<endl;
cout<<"the value of a[3] is "<<a[3]<<endl<<endl;
modiElment(a[3]);
cout<<"the value of a[3] is "<<a[3]<<endl<<endl;
system("pause");
return 0;
}
void modi (int b[],int Size)
{
for (int j=0;j<Size;j++)
b[j]*=2;
}
void modiElment(int e)
{
cout<<"Value in ModiElment is "<<(e*=2)<<endl<<endl;
}

a[3]

#include <iostream>
#include <iomanip>
using namespace std;
void TryToModi(const int []);
int  main()
{
int a[]={10,20,30};
cout<<a[0]<<"  "<<a[1]<<"   "<<a[2]<<endl;
TryToModi(a);
system("pause");
return 0;
}
void TryToModi(const int b [])
{
b[0] *=2;
b[1] *=2;
b[2] *=2;
}