Inverted Pyramid star pattern in C++ language

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Inverted Pyramid star pattern in C++ language

In this article, we will discuss the Inverted Pyramid star pattern in C++ language – using loops

In this post, we will learn how to create inverted Pyramid pattern using for, while and do-wile loop in C++ language

Pyramid star pattern using for loop

Program 1

This program allows the user to enter the number of rows and the symbol then the program displays a full pyramid star pattern with the given symbol using for loop in C++ language

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows;
    char ch;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
    cout << "Enter the symbol as you wish" << endl;
    cin>>ch;
    for(int i=rows; i>=1;  i--){//outer for loop
            for(int j=i; j<=rows; j++){
                cout<<" ";//print space fot pyramid
            }
            for(int j=1; j<=(2*i-1); j++){//inner for loop
                cout<<ch;  //create left half
            }
 cout<<"\n";//move to next line
    }
     getch();
    return 0;
}

When the above code is executed, it produces the following result

Pyramid star pattern using the while loop

Program 2

This program allows the user to enter the number of rows and the symbol then the program displays a full inverted pyramid star pattern with the given symbol using the while loop in C++ language

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows;
    char ch;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
    cout << "Enter the symbol as you wish" << endl;
    cin>>ch;
    int i=rows;
    while(i>=1){//outer while loop
            int j=i;
            while(j<=rows){//inner while 1
                cout<<" ";//print space for pyramid
    j++;
            }
            j=1;
            while(j<=(2*i-1)){//inner while 2
                cout<<ch;//print symbol for pyramid
                j++;
            }
 cout<<"\n";//move to next line
 i--;
    }
     getch();
    return 0;
}

When the above code is executed, it produces the following result

Pyramid star pattern using the do-while loop

Program 3

This program allows the user to enter the number of rows and the symbol then the program displays a full inverted pyramid star pattern with the given symbol using do-while loop in C++ language

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int rows;
    char ch;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
    cout << "Enter the symbol as you wish" << endl;
    cin>>ch;
    int i=rows;
    do{//outer while loop
            int j=i;
            do{//inner while 1
                cout<<" ";//print space for pyramid
    j++;
            }while(j<=rows);
            j=1;
            do{//inner while 2
                cout<<ch;//print symbol for pyramid
                j++;
            }while(j<=(2*i-1));
 cout<<"\n";//move to next line
 i--;
    }while(i>=1);
     getch();
    return 0;
}

When the above code is executed, it produces the following result