Number Pattern

Part of the Fundamentals section of Coddy's C++ journey — lesson 72 of 74.

When creating patterns like pyramids, we often need to create strings with repeated characters. Here's a useful technique to create such strings:

std::string str(10, 'a');

In this example, str will hold 10 occurrences of a: "aaaaaaaaaa"

Let's break down how this works:

std::string str declares a string variable named str
(10, 'a') the constructor of string that creates a string with 10 times the char 'a'

Challenge

Easy

Each test case has one input - an odd whole number.
Your task is to print n - pyramid using *, here are some examples:

*
***
*****

*
***
*****
*******

n represents the number of * in the bottom row

Cheat sheet

To create strings with repeated characters in C++:

std::string str(10, 'a');

This creates a string with 10 occurrences of the character 'a': "aaaaaaaaaa"

The constructor takes two parameters:

Try it yourself

#include <iostream>

int main() {
    int n;
    std::cin >> n;
    // Write your code below
    
    return 0;
}

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

1Introduction

4Operators Part 1

7Input/Output Basics

10Functions

13Final Challenges