Program for n-th odd number
Given a number n, print the nth odd number. The 1st odd number is 1, 2nd is 3, and so on.
Examples:
Input : 3 Output : 5 First three odd numbers are 1, 3, 5, .. Input : 5 Output : 9 First 5 odd numbers are 1, 3, 5, 7, 9, ..
The nth odd number is given by the formula 2*n-1.
C++
// CPP program to find the nth odd number #include <bits/stdc++.h> using namespace std; // Function to find the nth odd number int nthOdd( int n) { return (2 * n - 1); } // Driver code int main() { int n = 10; cout << nthOdd(n); return 0; } |
Java
// JAVA program to find the nth odd number class GFG { // Function to find the nth odd number static int nthOdd( int n) { return ( 2 * n - 1 ); } // Driver code public static void main(String [] args) { int n = 10 ; System.out.println(nthOdd(n)); } } // This code is contributed // by ihritik |
Python3
# Python 3 program to find the # nth odd number # Function to find the nth odd number def nthOdd(n): return ( 2 * n - 1 ) # Driver code if __name__ = = '__main__' : n = 10 print (nthOdd(n)) # This code is contributed # by ihritik |
C#
// C# program to find the nth odd number using System; class GFG { // Function to find the nth odd number static int nthOdd( int n) { return (2 * n - 1); } // Driver code public static void Main() { int n = 10; Console.WriteLine(nthOdd(n)); } } // This code is contributed // by inder_verma |
PHP
<?php // PHP program to find the // Nth odd number // Function to find the // Nth odd number function nthOdd( $n ) { return (2 * $n - 1); } // Driver code $n = 10; echo nthOdd( $n ); // This code is contributed // by inder_verma ?> |
Javascript
<script> // Javascript program to find the nth odd number // Function to find the nth odd number function nthOdd(n) { return (2 * n - 1); } // Driver code var n = 10; document.write( nthOdd(n)); </script> |
Output:
19
Time Complexity: O(1)
Auxiliary Space: O(1)
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