For Loop in C++ - Hacker Rank Solution

Hello coders,

Today we will learn about For Loops in C++ and how to use them in our program to get the output in a loop.

After going through this post you will clearly understand the solution of For Loop in C++ Hacker Rank problem.

So, Without Further Ado let's dive into the question.

For Loop in C++ - Hacker Rank Solution | Sloth Coders

1 Problem
2 Input Format
3 Output Format
4 Solution - For Loop in C++
5 Conclusion

Problem

A for loop is a programming language statement which allows code to be repeatedly executed.

The syntax is

for ( <expression_1> ; <expression_2> ; <expression_3> )
<statement>

expression_1 is used for initializing variables which are generally used for controlling the terminating flag for the loop.
expression_2 is used to check for the terminating condition. If this evaluates to false, then the loop is terminated.
expression_3 is generally used to update the flags/variables.

A sample loop is

for ( int i = 0; i < 10; i++) {
    . . .
}

In this challenge, you will use a for loop to increment a variable through a range.

Input Format

You will be given two positive integers, a and b (a ≤ b), separated by a newline.

Output Format

For each integer n in the inclusive interval [a,b]:

If 1 ≤ n ≤ 9, then print the English representation of it in lowercase.That is "one" for 1, "two" for 2 and so on.

Else if n > 9 and it is even number, then print "even".

Else if n > 9 and it is odd number, then print "odd".

Note: [a,b] = { x ∈ Z | a ≤ x ≤ b } = { a, a+1, . . ., b}

Sample Input

8
11

Sample Output

eight
nine
even 
odd

Solution - For Loop in C++

#include <iostream>
#include <cstdio>
using namespace std;

int main() {
    // Complete the code.
    int a, b;
    cin >> a >> b;
    for (int i = a; i<=b; i++)
    {
        if ( i == 1){
            cout << "one" << endl;
        }
        else if ( i == 2) {
            cout << "two" << endl;
        }
        else if ( i == 3){
            cout << "three" << endl;
        }
        else if ( i == 4) {
            cout << "four" << endl;
        }
        else if ( i == 5) {
            cout << "five" << endl;
        }
        else if ( i == 6) {
            cout << "six" << endl;
        }
        else if ( i == 7) {
            cout << "seven" << endl;
        }
        else if ( i == 8) {
            cout << "eight" << endl;  
        }
        else if ( i == 9) {
            cout << "nine" << endl; 
        }
        else if ( i > 9) {
            if ( i % 2 == 0) {
            cout << "even" << endl;
            }
            else {
            cout << "odd" <<endl;
            }
        }         
    }
    
    return 0;
}

For Loop in C++ - Solution

For Loop in C++ - Hacker Rank Solution Results

For Loop in C++ - Result

Conclusion

So, coders today we have learnt about for loops and how to use them in our program. If you have any doubt regarding the problem ( For Loop in C++ ), feel free to contact in the Comment section.

Disclaimer: The above problem is generated by Hacker Rank but the solution is provided by Sloth Coders.

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For Loop in C++ - Hacker Rank Solution