the answer is A Because the first function called is using call by value The second function is called using call by reference.
On Sun, Aug 21, 2011 at 5:21 PM, mandy <[email protected]> wrote: > #include > using namespace std; > > int main() { > int Boys = 3, Girls = 5; > void F1(int males, int females); > void F2(int &m, int &f); > > F1(Boys, Girls); > cout << "\nAfter calling F1, within main()"; > cout << "\n\tBoys = " << Boys; // #2 > cout << "\n\tGirls = " << Girls; > > F2(Boys, Girls); > cout << "\nAfter calling F2, within main()"; > cout << "\n\tBoys = " << Boys; // #4 > cout << "\n\tGirls = " << Girls; > } > > void F1(int b, int g) { > b += 3, g += 4; > cout << "\nF1"; > cout << "\n\tBoys = " << b; // #1 > cout << "\n\tGirls = " << g; > } > > void F2(int &b, int &g) { > b = b + 8, g = g + 5; > cout << "\nF2"; > cout << "\n\tBoys = " << b; // #3 > cout << "\n\tGirls = " << g; > } > > Question 1: What is the output of the Boys variable on the marked lines? > A) #1: 6 > #2: 3 > #3: 11 > #4: 11 > B) #1: 6 > #2: 3 > #3: 11 > #4: 3 > C) #1: 6 > #2: 6 > #3: 11 > #4: 11 > D) It outputs nothing because it does not compile or run. > pls tell me during declaration and definition variable must be same,but > here is something different.And ans is (A). Thanks...... > > -- > You received this message because you are subscribed to the Google Groups > "google-codejam" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-code/-/e4EUV44QQzIJ. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-code?hl=en. > -- You received this message because you are subscribed to the Google Groups "google-codejam" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-code?hl=en.
