Program to print parallelogram pattern in c++ language using while
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Program to print parallelogram pattern in c++ language using while
Program to print parallelogram pattern in c++ language
In this article, we will discuss the concept of Program to print parallelogram pattern in c++ language using while loop
In this post, we are going to learn how to write a program to print parallelogram and Hollow parallelogram pattern using while loop in C++ language.
Display parallelogram star patterns Using while loop
Code to print Parallelogram star pattern

Program 1
This program allows the user to enter the number of rows , columns and any symbol then it will display the parallelogram star pattern using while loop in C++ programming language
#include <iostream>
#include <conio.h>
using namespace std;
using namespace std;
int main() {
int i,j,rows,columns;
//integer variable declaration
char ch;
//char variable declaration
cout<<"Enter the number of rows\n";
//Ask input from the user to rows
cin>>rows;
//Store the row in the rows variable entered by user
cout<<"Enter the number of columns\n";
//Ask input from the user to columns
cin>>columns;
//Store the column in the columns variable entered by user
cout<<"Enter the character for pattern\n";
//Ask input from the user to character
cin>>ch;
//Store the char in the character variable entered by user
cout<<"\n";
i=1;
while(i<=rows){//outer for loop
j=1;
while(j<=rows-i){//inner for loop
cout<<" ";//print space
j++;
}
j=1;
while(j<=columns){//inner for loop
cout<<ch;//print symbol after space
j++;
}
cout<<"\n";//move to next line
i++;
}
getch();
return 0;
}
When the above code is executed, it produces the following result
Code to print Hollow Parallelogram star pattern
Program 2
This program allows the user to enter the number of rows , columns and any symbol then it will display the Hollow parallelogram pattern using while loop in C++ programming language
#include <iostream>
#include <conio.h>
using namespace std;
int main() {
int i,j,rows,columns;
char ch;
cout<<"Enter the number of rows\n";
cin>>rows; //store the user input- rows
cout<<"Enter the number of columns\n";
cin>>columns; //store the user input- columns
cout<<"Enter the character for pattern\n";
cin>>ch;
cout<<"\n";
i=1;
while(i<=rows){//outer while loop
j=1;
while(j<=rows-i){//inner while loop
cout<<" ";//print space
j++;
}
j=1;
while(j<=columns){//inner for loop
if(i==1 || i==rows || j==1 || j==columns){
cout<<ch;//print symbol after space
}
else{
cout<<" ";//print space
}
j++;
}
cout<<"\n";//move to next line
i++;
}
getch();
return 0;
}
When the above code is executed, it produces the following result
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