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Given the number of rows, the task is to Print pattern with a combination of Numbers and Stars in C, C++, and Python.
Examples:
Example1:
Input:
Given number of rows = 8
Output:
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
Example2:
Input:
Given number of rows = 13
Output:
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
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Program to Print Pattern with a Combination of Numbers and Stars in C, C++, and Python
Below are the ways to print Print patterns with a combination of Numbers and Stars in C, C++, and Python.
Method #1: Using For Loop (Static Input)
Approach:
- Give the number of rows as static input and store it in a variable.
- Loop from 0 to the number of rows using For loop.
- Inside the For, loop Take a variable(say Tempo) and initialize its value with 1.
- Print the value of the Tempo variable with space.
- Loop from the number of rows -m-1 to 0 in decreasing order using another for loop(Nested For loop) where m is the iterator value of the parent For loop.
- Print the Star Character with space.
- Increment the value of Tempo by 1.
- Print the value of the Tempo variable with space.
- Print the Newline character after the end of the inner loop.
- The Exit of the Program.
1) Python Implementation
Below is the implementation:
# Give the number of rows as static input and store it in a variable.
numberOfRows = 8
# Loop from 0 to the number of rows using For loop.
for m in range(0, numberOfRows):
# Inside the For, loop Take a variable(say Tempo) and initialize its value with 1.
Tempo = 1
# Print the value of the Tempo variable with space.
print(Tempo, end=' ')
# Loop from the number of rows -m-1 to 0 in decreasing order using another for loop(Nested For loop)
# where m is the iterator value of the parent For loop.
for n in range(numberOfRows-m-1, 0, -1):
# Print the Star Character with space.
print('*', end=' ')
# Increment the value of Tempo by 1.
Tempo = Tempo + 1
# Print the value of the Tempo variable with space.
print(Tempo, end=' ')
# Print the Newline character after the end of the inner loop.
print()
Output:
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
2) C++ Implementation
Below is the implementation:
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
// Give the number of rows as static input and store it
// in a variable.
int numberOfRows = 8;
// Loop from 0 to the number of rows using For loop.
for (int m = 0; m < numberOfRows; m++) {
// Inside the For, loop Take a variable(say Tempo)
// and initialize its value with 1.
int Tempo = 1;
// Print the value of the Tempo variable with space.
cout << Tempo << " ";
// Loop from the number of rows -m-1 to 0 in
// decreasing order using another
// for loop(Nested For loop)
// where m is the iterator value of the parent For
// loop.
for (int n = numberOfRows - m - 1; n > 0; n--) {
// Print the Star Character with space.
cout << "* ";
// Increment the value of Tempo by 1.
Tempo = Tempo + 1;
// Print the value of the Tempo variable with
///space.
cout << Tempo << " ";
}
// Print the Newline character after the end of the
// inner loop.
cout << endl;
}
return 0;
}
Output:
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
3) C Implementation
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows as static input and store it
// in a variable.
int numberOfRows = 13;
// Loop from 0 to the number of rows using For loop.
for (int m = 0; m < numberOfRows; m++) {
// Inside the For, loop Take a variable(say Tempo)
// and initialize its value with 1.
int Tempo = 1;
// Print the value of the Tempo variable with space.
printf("%d ", Tempo);
// Loop from the number of rows -m-1 to 0 in
// decreasing order using another
// for loop(Nested For loop)
// where m is the iterator value of the parent For
// loop.
for (int n = numberOfRows - m - 1; n > 0; n--) {
// Print the Star Character with space.
printf("* ");
// Increment the value of Tempo by 1.
Tempo = Tempo + 1;
// Print the value of the Tempo variable with
/// space.
printf("%d ", Tempo);
}
// Print the Newline character after the end of the
// inner loop.
printf("\n");
}
return 0;
}
Output:
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
Method #2: Using For Loop (User Input)
Approach:
- Give the number of rows as user input and store it in a variable.
- Loop from 0 to the number of rows using For loop.
- Inside the For, loop Take a variable(say Tempo) and initialize its value with 1.
- Print the value of the Tempo variable with space.
- Loop from the number of rows -m-1 to 0 in decreasing order using another for loop(Nested For loop) where m is the iterator value of the parent For loop.
- Print the Star Character with space.
- Increment the value of Tempo by 1.
- Print the value of the Tempo variable with space.
- Print the Newline character after the end of the inner loop.
- The Exit of the Program.
1) Python Implementation
Give the number of rows as user input using int(input()) and store it in a variable.
Below is the implementation:
# Give the number of rows as user input using int(input()) and store it in a variable.
numberOfRows = int(input('Enter some random number of rows = '))
# Loop from 0 to the number of rows using For loop.
for m in range(0, numberOfRows):
# Inside the For, loop Take a variable(say Tempo) and initialize its value with 1.
Tempo = 1
# Print the value of the Tempo variable with space.
print(Tempo, end=' ')
# Loop from the number of rows -m-1 to 0 in decreasing order using another for loop(Nested For loop)
# where m is the iterator value of the parent For loop.
for n in range(numberOfRows-m-1, 0, -1):
# Print the Star Character with space.
print('*', end=' ')
# Increment the value of Tempo by 1.
Tempo = Tempo + 1
# Print the value of the Tempo variable with space.
print(Tempo, end=' ')
# Print the Newline character after the end of the inner loop.
print()
Output:
Enter some random number of rows = 11 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 1 * 2 * 3 * 4 * 5 * 6 * 7 1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
2) C++ Implementation
Give the number of rows as user input using cin and store it in a variable.
Below is the implementation:
#include <iostream>
using namespace std;
int main()
{
// Give the number of rows as user input using
// int(input()) and store it in a variable.
int numberOfRows;
cin >> numberOfRows;
// Loop from 0 to the number of rows using For loop.
for (int m = 0; m < numberOfRows; m++) {
// Inside the For, loop Take a variable(say Tempo)
// and initialize its value with 1.
int Tempo = 1;
// Print the value of the Tempo variable with space.
cout << Tempo << " ";
// Loop from the number of rows -m-1 to 0 in
// decreasing order using another
// for loop(Nested For loop)
// where m is the iterator value of the parent For
// loop.
for (int n = numberOfRows - m - 1; n > 0; n--) {
// Print the Star Character with space.
cout << "* ";
// Increment the value of Tempo by 1.
Tempo = Tempo + 1;
// Print the value of the Tempo variable with
/// space.
cout << Tempo << " ";
}
// Print the Newline character after the end of the
// inner loop.
cout << endl;
}
return 0;
}
Output:
5 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
3) C Implementation
Give the number of rows as user input using scanf and store it in a variable.
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows as user input using scanf and
// store it in a variable.
int numberOfRows;
scanf("%d", &numberOfRows);
// Loop from 0 to the number of rows using For loop.
for (int m = 0; m < numberOfRows; m++) {
// Inside the For, loop Take a variable(say Tempo)
// and initialize its value with 1.
int Tempo = 1;
// Print the value of the Tempo variable with space.
printf("%d ", Tempo);
// Loop from the number of rows -m-1 to 0 in
// decreasing order using another
// for loop(Nested For loop)
// where m is the iterator value of the parent For
// loop.
for (int n = numberOfRows - m - 1; n > 0; n--) {
// Print the Star Character with space.
printf("* ");
// Increment the value of Tempo by 1.
Tempo = Tempo + 1;
// Print the value of the Tempo variable with
/// space.
printf("%d ", Tempo);
}
// Print the Newline character after the end of the
// inner loop.
printf("\n");
}
return 0;
}
Output:
1 * 2 * 3 * 4 * 5 * 6 1 * 2 * 3 * 4 * 5 1 * 2 * 3 * 4 1 * 2 * 3 1 * 2 1
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