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Given the number of rows of the rhombus, the task is to print the hollow rhombus Star Pattern in C, C++, and Python.
Examples:
Example1:
Input:
given number of rows of rhombus =11
Output:
* * * * * * * * * * *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* * * * * * * * * * *
Example2:
Input:
given number of rows of rhombus =6 given character to print =<
Output:
< < < < < <
< <
< <
< <
< <
< < < < < <
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Program to Print Hollow Rhombus Star Pattern in C, C++, and Python
Below are the ways to print Hollow Rhombus star patterns in C, C++, and Python.
Method #1: Using For Loop (Star Character)
Approach:
- Give the number of rows of the rhombus as static input and store it in a variable.
- Using Nested For loops print the rhombus star pattern.
- We use the If Else statement to check If the side length of the rhombus(rows) is 0 or maximum – 1.
- If it is true then print * else print space.
- The Exit of the Program.
1) Python Implementation
Below is the implementation:
# Give the number of rows of the rhombus as static input and store it in a variable.
rhombusrows = 11
# Using Nested For loops print the rhombus star pattern.
for m in range(rhombusrows, 0, -1):
for n in range(1, m):
print(' ', end='')
for k in range(0, rhombusrows):
# We use the If Else statement to check If the side length of the rhombus(rows) is 0 or maximum – 1.
# If it is true then print * else print space.
if(m == 1 or m == rhombusrows or k == 0 or k == rhombusrows - 1):
print('*', end=' ')
else:
print(' ', end=' ')
print()
Output:
* * * * * * * * * * *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* * * * * * * * * * *
2) C++Implementation
Below is the implementation:
#include <iostream>
using namespace std;
int main(void)
{
// Give the number of rows of the rhombus as static
// input and store it in a variable.
int rhombusrows = 6;
// Using Nested For loops print the rhombus star
// pattern.
for (int m = rhombusrows; m > 0; m--) {
for (int n = 1; n < m; n++) {
cout << " ";
}
for (int k = 0; k < rhombusrows; k++) {
// We use the If Else statement to check If the
// side length of the rhombus(rows) is 0 or
// maximum – 1. If it is true then print * else
// print space.
if (m == 1 || m == rhombusrows || k == 0
|| k == rhombusrows - 1)
cout << "* ";
else
cout << " ";
}
cout << endl;
}
return 0;
}
Output:
* * * * * *
* *
* *
* *
* *
* * * * * *
3) C Implementation
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows of the rhombus as static
// input and store it in a variable.
int rhombusrows = 9;
// Using Nested For loops print the rhombus star
// pattern.
for (int m = rhombusrows; m > 0; m--) {
for (int n = 1; n < m; n++) {
printf(" ");
}
for (int k = 0; k < rhombusrows; k++) {
// We use the If Else statement to check If the
// side length of the rhombus(rows) is 0 or
// maximum – 1. If it is true then print * else
// print space.
if (m == 1 || m == rhombusrows || k == 0
|| k == rhombusrows - 1)
printf("* ");
else
printf(" ");
}
printf("\n");
}
}
Output:
* * * * * * * * *
* *
* *
* *
* *
* *
* *
* *
* * * * * * * * *
Method #2: Using For Loop (User Character)
Approach:
- Give the number of rows of the rhombus as static input and store it in a variable.
- Scan the character to print as user input and store it in a variable.
- Using Nested For loops print the rhombus star pattern.
- We use the If Else statement to check If the side length of the rhombus(rows) is 0 or maximum – 1.
- If it is true then print * else print space.
- The Exit of the Program.
1) Python Implementation
- Give the number of sides of the rhombus as user input using int(input()) and store it in a variable.
- Give the Character as user input using input() and store it in another variable.
Below is the implementation:
# Give the number of sides of the rhombus as user input using int(input()) and store it in a variable.
# Give the Element as user input using int(input()) and store it in another variable.
rhombusrows = int(input('Enter some random number of rows of the rhombus= '))
characte = input('Enter some random character to print = ')
# Using Nested For loops print the rhombus star pattern.
for m in range(rhombusrows, 0, -1):
for n in range(1, m):
print(' ', end='')
for k in range(0, rhombusrows):
# We use the If Else statement to check If the side length of the rhombus(rows) is 0 or maximum – 1.
# If it is true then print * else print space.
if(m == 1 or m == rhombusrows or k == 0 or k == rhombusrows - 1):
print(characte, end=' ')
else:
print(' ', end=' ')
print()
Output:
Enter some random number of rows of the rhombus= 6
Enter some random character to print = <
< < < < < <
< <
< <
< <
< <
< < < < < <
2) C++Implementation
- Give the number of sides of the rhombus as user input using cin and store it in a variable.
- Create a character variable.
- Give the character as user input using cin and store it in another variable.
Below is the implementation:
#include <iostream>
using namespace std;
int main(void)
{
int rhombusrows;
char characte;
// Give the number of rows of the rhombus as user input
// using cin and
// store it in a variable.
cout << "Enter some random number of rows of the "
"rhombus = "
<< endl;
cin >> rhombusrows;
// Create a character variable.
// Give the character as user input using cin and store
// it in another variable.
cout << "Enter some random character to print = "
<< endl;
cin >> characte;
cout << endl;
for (int m = rhombusrows; m > 0; m--) {
for (int n = 1; n < m; n++) {
cout << " ";
}
for (int k = 0; k < rhombusrows; k++) {
// We use the If Else statement to check If the
// side length of the rhombus(rows) is 0 or
// maximum – 1. If it is true then print * else
// print space.
if (m == 1 || m == rhombusrows || k == 0
|| k == rhombusrows - 1)
cout << characte << " ";
else
cout << " ";
}
cout << endl;
}
return 0;
}
Output:
Enter some random number of rows of the rhombus =
5
Enter some random character to print =
?
? ? ? ? ?
? ?
? ?
? ?
? ? ? ? ?
3) C Implementation
- Give the number of sides of the rhombus as user input using scanf and store it in a variable.
- Create a character variable.
- Give the character as user input using scanf and store it in another variable.
Below is the implementation:
#include <stdio.h>
int main()
{
int rhombusrows;
char characte;
// Give the number of rows of the rhombus as user input
// using scanf and
// store it in a variable.
// Create a character variable.
// Give the character as user input using scanf and
// store it in another variable.
// Using Nested For loops print the rhombus pattern.
scanf("%d%c", &rhombusrows, &characte);
printf("\n");
// Using Nested For loops print the rhombus star
// pattern.
for (int m = rhombusrows; m > 0; m--) {
for (int n = 1; n < m; n++) {
printf(" ");
}
for (int k = 0; k < rhombusrows; k++) {
// We use the If Else statement to check If the
// side length of the rhombus(rows) is 0 or
// maximum – 1. If it is true then print * else
// print space.
if (m == 1 || m == rhombusrows || k == 0
|| k == rhombusrows - 1)
printf("%c ", characte);
else
printf(" ");
}
printf("\n");
}
}
Output:
5 :
: : : : :
: :
: :
: :
: : : : :
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