Create a method that uses a loop to calculate the summation. Should have the same signature as the recursive method below but use a loop instead

int sum(int n)

{

if (n < 1)

{

return 0;

}

return sum(n-1) + n;

}

I need help getting the declarations to work, rather can someone help me declare the int sum (int n) I dont know how to declare that function so everytime I run the program it just crashes because of the invalid syntax

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int main() { int n; cout << "Enter your 'n' Value "; //allows user to input the value they want cin >> n;

int sum(int n); // This calls the function sum(int), and then ";" ends the function { // This doesnt do anything, invalid syntax int returnsum = 0; for (int i = 1; i <= n; i++) { returnsum += i; } return returnsum; }

system("pause"); }