C++ program to print all Even and Odd numbers from 1 to N

Given a number N, the task is to print N even numbers and N odd numbers from 1.

Examples:

Input: N = 5
Output: 
Even: 2 4 6 8 10
Odd: 1 3 5 7 9

Input: N = 3
Output: 
Even: 2 4 6
Odd: 1 3 5

Approach:

1. For Even numbers:
   • Even number are numbers that are divisible by 2.
   • To print even numbers from 1 to N, traverse each number from 1.
   • Check if these numbers are divisible by 2.
   • If true, print that number.
2. For Odd numbers:
   • Odd number are numbers that are not divisible by 2.
   • To print Odd numbers from 1 to N, traverse each number from 1.
   • Check if these numbers are not divisible by 2.
   • If true, print that number.

Below is the implementation of the above approach:

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// C++ program to print all Even // and Odd numbers from 1 to N    #include <bits/stdc++.h> using namespace std;    // Function to print even numbers void printEvenNumbers(int N) {        cout << "Even: ";     for (int i = 1; i <= 2 * N; i++) {            // Numbers that are divisible by 2         if (i % 2 == 0)             cout << i << " ";     } }    // Function to print odd numbers void printOddNumbers(int N) {        cout << "\nOdd: ";     for (int i = 1; i <= 2 * N; i++) {            // Numbers that are not divisible by 2         if (i % 2 != 0)             cout << i << " ";     } }    // Driver code int main() {        int N = 5;        printEvenNumbers(N);     printOddNumbers(N);        return 0; }

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Output:

Even: 2 4 6 8 10 
Odd: 1 3 5 7 9

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