C++ program to print star pattern

In this chapter of C++ program tutorial our task is:

• Write a C++ program to print star pattern given below

* * * *

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C++ star pattern printing program

Given below is a c++ program to print star pattern as shown above:

//program author : Sayantan Bose
#include<iostream>
using namespace std;
//This the function to print the given pattern
void pattern(int noOfLines)
{
    int i,j,k,cnt=1;
    for(i=noOfLines;i>=1;i--){
        for(j=1;j<=i-1;j++){
            cout<<" ";
        }
        for(k=1;k<=cnt;k++){
            cout<<"* ";
        }
        cout<<endl;
        cnt++;
    }
}
//This is the main function
int main()
{
    int n;
    cout<<"Enter the number of lines you want enter"<<endl;
    cin>>n;
    cout<<"The following is the required pattern"<<endl;
    pattern(n);
    return 0;
}

• From the main function the user is taking the required number of lines that needs to be printed
• Then a function "pattern" is called to print the required pattern
• There are two variables name "i" and "j"
• "i" keep a track of number of rows
• "j" keep a track of number of spaces to be inserted
• "k" keep a track of the columns
• "cnt" increases the star count