Chapter 1, Problem 21R

Explanation of Solution

Program code:

//include the required header files

#include <iostream>

//declare sumOdd()

int sumOdd(int);

//define main() function

int main()

{

    //declare required variables

    int n,s;

    //prompt the user to enter the number

    std::cout<<"Enter the number:";

    //scan for the values

    std::cin>>n;

    //call the method sumOdd()

    s=sumOdd(n);

    //prompt the sum of odd numbers

    std::cout<<"Sum of odd numbers:"<<s;

}

//define sumOdd()

int sumOdd(int n)

{

//declare the variable sum

int sum = 0;

//iterate a for loop

for (int i = 1; i < n; i+=2)

//find the sum of odd numbers

sum += i;

//return the sum

return sum;

}

Explanation:

The above snippet of code is used to sum of odd integers...