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Given the number of rows of the right triangle, the task is to print Mirrored Right Triangle Star Pattern in C, C++, and Python.
Examples:
Example1:
Input:
given number of rows of the right triangle =6
Output:
*
* *
* * *
* * * *
* * * * *
* * * * * *
Example2:
Input:
given number of rows of the right triangle = Given character to print ='$'
Output:
$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
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Program to Print Mirrored Right Triangle Star Pattern in C, C++, and Python
Below are the ways to print Mirrored Right Triangle Star Pattern in C, C++, and Python.
Method #1: Using For loop (Star Character)
Approach:
- Give the number of rows of the right triangle pattern as static input and store it in a variable.
- Iterate from 1 to given rows using the First For loop.
- Iterate from 1 to given rows using another for loop(Nested For loop)
- Check if the iterator value of the inner for loop is less than or equal to given rows – first iterator value using If statement.
- If the statement is true then print space.
- Else print the star character with space.
- Print the newline character after the exit of the inner for loop.
- The Exit of the Program.
1) Python Implementation:
Below is the implementation:
# Give the number of rows of the right triangle pattern as static input and store it in a variable.
triNumRows = 6
# Iterate from 1 to given rows using the First for loop.
for m in range(1, triNumRows+1):
# Iterate from 1 to given rows using another for loop(Nested For loop)
for n in range(1, triNumRows+1):
# Check if the iterator value of the inner for loop is less than or equal to given rows - first iterator value using If statement.
if(n <= triNumRows - m):
# If the statement is true then print space.
print(' ', end=' ')
else:
# Else print star character with space.
print('*', end=' ')
#Print the newline character after the exit of the inner for loop.
print()
Output:
*
* *
* * *
* * * *
* * * * *
* * * * * *
2) C++ Implementation
Below is the implementation:
#include <iostream>
using namespace std;
int main()
{
// Give the number of rows of the right triangle pattern
// as static input and store it in a variable.
int triNumRows = 6;
// Iterate from 1 to given rows using First for loop.
for (int m = 1; m <= triNumRows; m++) {
// Iterate from 1 to given rows using another for
// loop(Nested For loop)
for (int n = 1; n <= triNumRows; n++) {
// Check if the iterator value of the inner
// for loop is less
// than
// or equal to given rows
// first iterator value using If statement.
if (n <= triNumRows - m) {
// If the statement is true then print
// space.
cout << " ";
}
else {
// Else print star character with space.
cout << "* ";
}
}
// Print the newline character after the exit of the
// inner for loop.
cout << endl;
}
return 0;
}
Output:
*
* *
* * *
* * * *
* * * * *
* * * * * *
3) C Implementation
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows of the right triangle pattern
// as static input and store it in a variable.
int triNumRows = 6;
// Iterate from 1 to given rows using First for loop.
for (int m = 1; m <= triNumRows; m++) {
// Iterate from 1 to given rows using another for
// loop(Nested For loop)
for (int n = 1; n <= triNumRows; n++) {
// Check if the iterator value of the inner
// for loop is less
// than
// or equal to given rows
// first iterator value using If statement.
if (n <= triNumRows - m) {
// If the statement is true then print
// space.
printf(" ");
}
else {
// Else print star character with space.
printf("* ");
}
}
// Print the newline character after the exit of the
// inner for loop.
printf("\n");
}
return 0;
}
Output:
*
* *
* * *
* * * *
* * * * *
* * * * * *
Method #2: Using For Loop(User Character)
Approach:
- Give the number of rows of the right triangle pattern as user input and store it in a variable.
- Give the character to print as user input and store it in a variable.
- Iterate from 1 to given rows using the First For loop.
- Iterate from 1 to given rows using another for loop(Nested For loop)
- Check if the iterator value of the inner for loop is less than or equal to given rows – first iterator value using If statement.
- If the statement is true then print space.
- Else print the star character with space.
- Print the newline character after the exit of the inner for loop.
- The Exit of the Program.
1) Python Implementation:
- Give the number of rows of the Right Triangle 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 rows of the Right Triangle as user input using int(input()) and store it in a variable.
triNumRows = int(input(
'Enter some random number of rows of the Right Triangle Pattern = '))
# Give the Character as user input using input() and store it in another variable.
givencharacter = input('Enter some random character = ')
# Iterate from 1 to given rows using First for loop.
for m in range(1, triNumRows+1):
# Iterate from 1 to given rows using another for loop(Nested For loop)
for n in range(1, triNumRows+1):
# Check if the iterator value of the inner for loop is less than or equal to given rows - first iterator value using If statement.
if(n <= triNumRows - m):
# If the statement is true then print space.
print(' ', end=' ')
else:
# Else print star character with space.
print(givencharacter, end=' ')
print()
Output:
Enter some random number of rows of the Right Triangle Pattern = 6 Enter some random character = $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
2) C++ Implementation
- Give the number of rows of the Right Triangle as user input using cin and store it in a 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()
{
// Give the number of rows of the Right
// Triangle as user input using cin and store it in a
// variable.
int triNumRows;
char givencharacter;
cout << "Enter some random number of rows of the "
"Inverted Right Triangle Pattern = "
<< endl;
cin >> triNumRows;
// Give the Character as user input using cin and store
// it in another variable.
cout << "Enter some random character = " << endl;
cin >> givencharacter;
cout << endl;
// Iterate from 1 to given rows using First for loop.
for (int m = 1; m <= triNumRows; m++) {
// Iterate from 1 to given rows using another for
// loop(Nested For loop)
for (int n = 1; n <= triNumRows; n++) {
// Check if the iterator value of the inner
// for loop is less
// than
// or equal to given rows
// first iterator value using If statement.
if (n <= triNumRows - m) {
// If the statement is true then print
// space.
cout << " ";
}
else {
// Else print star character with space.
cout <<givencharacter<<" ";
}
}
// Print the newline character after the exit of the
// inner for loop.
cout << endl;
}
return 0;
}
Output:
Enter some random number of rows of the Right Triangle Pattern = 6 Enter some random character = $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
3) C Implementation
- Give the number of rows of the Right Triangle as user input using scanf and store it in a variable.
- Give the Character as user input using scanf and store it in another variable.
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows of the Right
// Triangle as user input using scanf and store it in a
// variable.
int triNumRows;
char givencharacter;
// Give the Character as user input using scanf and
// store it in another variable.
scanf("%d", &triNumRows);
scanf("%c", &givencharacter);
printf("\n");
// Iterate from 1 to given rows using First for loop.
for (int m = 1; m <= triNumRows; m++) {
// Iterate from 1 to given rows using another for
// loop(Nested For loop)
for (int n = 1; n <= triNumRows; n++) {
// Check if the iterator value of the inner
// for loop is less
// than
// or equal to given rows
// first iterator value using If statement.
if (n <= triNumRows - m) {
// If the statement is true then print
// space.
printf(" ");
}
else {
// Else print star character with space.
printf("%c ", givencharacter);
}
}
// Print the newline character after the exit of the
// inner for loop.
printf("\n");
}
return 0;
}
Output:
6$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
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