Display Hollow Inverted Pyramid pattern in C++ language

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Display Hollow Inverted Pyramid pattern in C++ language

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

In this post, we will learn how to create hollow Pyramid pattern using for, while and do-wile loop

C++ inverted pyramid 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 Hollow pyramid star pattern with the given symbol using for loop in C++ language

Program 1

#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
    int i,j,rows;//declared variables
    char ch;
    cout<<"Enter number of rows\n";
    cin>>rows;
    //Takes number of rows from user
    cout<<"Enter the symbol\n";
    cin>>ch;
    //input symbol for pattern
    for(i=1; i<=rows; i++){//to iterates each row
for(j=1; j<=i; j++){//Print space for Pyramid shape
cout<<" "; //print space
}
for(j=1; j<=(rows*2-(2*i-1)); j++){//to print *
if(i==1 || j==1|| j==(rows*2-(2*i-1))){

 cout<<ch; //print star
  }
 else {
cout<<" "; //print space
 }

}
cout<<"\n";
}
getch();
    return 0;
}

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

Output

C++ inverted pyramid 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 Hollow pyramid star pattern with the given symbol using while loop in C++ language

#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
    int i,j,rows;//declared variables
    char ch;
    cout<<"Enter number of rows\n";
    cin>>rows;
    //Takes number of rows from user
    cout<<"Enter the symbol\n";
    cin>>ch;
    //input symbol for pattern
    i=1;
    while(i<=rows){//to iterates each row
            j=1;
while(j<=i){//Print space for Pyramid shape
cout<<" "; //print space
j++;
}
j=1;
while( j<=(rows*2-(2*i-1))){//to print *
if(i==1 || j==1|| j==(rows*2-(2*i-1))){

 cout<<ch; //print star
  }
 else {
cout<<" "; //print space
 }
 j++;
}
cout<<"\n";
 i++;
}
getch();
    return 0;
}

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

Ouyput

C++ inverted pyramid pattern – using do-while loop

Program 3

This program allows the user to enter the number of rows and the symbol then the program displays a Hollow 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 i,j,rows;//declared variables
    char ch;
    cout<<"Enter number of rows\n";
    cin>>rows;
    //Takes number of rows from user
    cout<<"Enter the symbol\n";
    cin>>ch;
    //input symbol for pattern
    i=1;
    do{//to iterates each row
            j=1;
do{//Print space for Pyramid shape
cout<<" "; //print space
j++;
}while(j<=i);
j=1;
do{//to print *
if(i==1 || j==1|| j==(rows*2-(2*i-1))){

 cout<<ch; //print star
  }
 else {
cout<<" "; //print space
 }
 j++;
}while( j<=(rows*2-(2*i-1)));
cout<<"\n";
 i++;
}while(i<=rows);
getch();
    return 0;
}

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

Output

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