Question

C++

Write a recursive function named sumSquares that returns the sum of the squares of the numbers from  to num, in which num is a nonnegative int variable. Do not use global variables; use the appropriate parameters. Also write a program to test your function.

Answer 1

#include <iostream>

using namespace std;

int sumSquares(int i, int num) {
    if(i > num) {
        return 0;
    } else {
        return (i*i) + sumSquares(i+1, num);
    }
}

int main() {
    int num;
    cout << "Enter a value for num: ";
    cin >> num;
    cout << "Sum of squares of all numbers from 1 to " << num << " is " << sumSquares(1, num) << endl;
    return 0;
}