example1.cpp
-----------------------------------------------
#include <iostream>
using namespace std;

void printHi(){
        int i, n=6;	
        for(i=0;i<n;i++)
                cout << "Hi! ";
        cout << endl;
}

int main(){
        int n, i; 
        cout << "Enter n: ";
        cin >> n;
        for(i=0;i<n;i++)
                printHi();
        return 0;
}


example2.cpp
----------------------------------------------
#include <iostream>
using namespace std;
int length=10;				// global variable
void printRow(){
        int i;				// local variable
        for(i=0;i<length;i++)
            cout << "*";
        cout << endl;
}
void printRectangle(int n){		// n is passed by value
        int i;				// local variable
        for(i=0;i<n;i++)
                printRow();
}
int main(){	// main function
        int n;
        cout << "Enter n: ";
        cin >> n;
        printRectangle(n);
        return 0;
}


example3.txt
-------------------------------------------------------
#include <iostream>
using namespace std;

int findMin(int a, int b){
        if(a<b)
                return a;
        else
                return b;
}

int main(){

        int a, b, min;

        cout << "a=";
        cin >> a;
        cout << "b=";
        cin >> b; 

        min=findMin(a,b);
        cout << "min=" << min << endl;

        return 0;
}