Two questions

[Blue22]

#1. I have to Write a program that reads the contents of both files to two separate vectors. Prompt the user to enter a boy’s name, a girl’s name or both (a boy’s and a girl’s name). The code should then display a message indicating whether the entered name was among the most popular list of names.

What I have so far from following the algorithm my teacher gave me, the text book, and any online source I could find:

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
using namespace std;

const int RANK = 200;
int n;

int main()
{
	ifstream names;
	string target, boyname, girlname;
	bool findBoy, findGirl;
	int rank, i;
	int rankArray[RANK];
	string boyArray[RANK];
	string girlArray[RANK];
	vector<string> searchHistory;
	names.open("BoyNames.txt");
	names.open("GirlNames.txt");

	cout << "This program will determine whether a name is a popular baby name for a boy or a girl." << endl;
	cout << "(Btw, if you're expecting, congratulations!)" << endl << endl;

	for (i = 0; i<RANK; i++){
		names >> rank >> boyname >> girlname;
		rankArray[i] = rank;
		boyArray[i] = boyname;
		girlArray[i] = girlname;
	}

	while (true) {
		cout << "Type a boy's name, a girl's name, or both." << endl;
		cin >> target;
		cout << endl;

		for (n = 0; n<RANK; n++)
		{
			if (target == boyArray[n]){
				cout << target << " is ranked " << (n + 1) << " in popularity among boys." << endl;
				findBoy = true;
			}
			if (target == girlArray[n]){
				cout << target << " is ranked " << (n + 1) << " in popularity among girls." << endl;
				findGirl = true;
			}
		}

		if (findBoy != false) cout << target << " is not a popular boy names." << endl;
		if (findGirl != false) cout << target << " is not a popular girl name." << endl;
	}
	return 0;
}

The problem: Even if I type a name that's on both lists, the program will tell me that "[blank] is not a popular boy/girl name"


#2. I'm given this code:

int doSomething(int &x, int &y) 
{ int temp = x; 
x = y * 10; 
y = temp * 10; 
return x + y; }

I'm supposed to rewrite the function so that it uses pointers instead of reference variables. Demonstrate that the function works by using it in a complete program.

The closest I could get to before I started completely drawing a blank is this:

#include <iostream>
using namespace std;

void dosomething(int *);

int main()
{
	int x, y;
	int output;

	dosomething(&x, &y);

	cout << "Enter a Value for X: ";
	cin >> x;
	cout << "Enter a Value for Y: ";
	cin >> y;
	
}

void dosomething(int *temp)
{

	*temp *= 10;
	
}

The output is supposed to be something along these lines:

"Please enter values for x and y (separated by a space): 2 3
I will now call the original (given) function ...
The value returned from the original function is 50"

I've tried about every different combination I could think of but nothing seems to be working. Help would be greatly appreciated :)

[keskiverto]

names.open("BoyNames.txt");
names.open("GirlNames.txt");

Who do you think you will be reading after the above code?

a program that reads the contents of both files to two separate vectors

Start simple: read one file to one vector. To vector, not array.


You have been given a function that takes two parameters. You have written a program that takes one parameter and does not do the same calculation as the given function.

Take the given function, change the references to pointers and correct the dereferencing. Do that, and only that. No main() yet.

[Blue22]

I'm...still not getting it...

(Sorry if I sound dumb. I'm not good at this stuff and we didn't get to cover a lot of Vector stuff in class because the teacher's been sick)

[Blue22]

Nevermind. Just went submitted the assignment with what I could do.