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Simple If statement problem

omurad (38)
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// Geometry Chapter 9 Project.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "iostream"
#include "stdio.h"
#include <cstdlib>
#include <conio.h>
#include <time.h>
#include <ctime>
using namespace std;


void QuestionOne ()
{
	cout << "Question 1:" << endl << endl;
	int q1x, q1y, q1vx, q1vy, q1ax, q1ay;
	q1x = rand() % 10 + 1;
	q1y = rand() % 10 + 1;
	q1vx = rand() % 10 + 1;
	q1vy = rand() % 10 + 1;

	cout << "Point " << q1x << ", " << q1y << " is being translated with vector <" << q1vx << ", " << q1vy << ">." << endl << "What are the coordinated of the new image formed?" << endl;
	cout << "x = ";
	cin >> q1ax;
	cout << endl << "y = ";
	cin >> q1ay;
	cout << endl;

	if (q1ax == (q1x + q1vx) && q1ay == ( q1y + q1vy)) {

		 cout << "Correct! Next Question..." << endl << endl;

	QuestionTwo ();
	}

	else {
    cout << "Incorrect! Please try again" << endl << endl;
    QuestionOne ();
}
	
}

void QuestionTwo ()
{
	int q2x, q2y, q2ax, q2ay;
	q2x = rand() % 10 + 1;
	q2y = rand() % 10 + 1;
	q2ax = q2y;
	q2ay = q2x;
	
	cout << "Point " << q2x << ", " << q2y << "is being rotated 90 degrees clockwise." << endl << "What are the coordinates after the rotation?" << endl << endl;
	cout << "x = ";
	cin >> q2ax;
	cout << endl << "y = ";
	cin >> q2ay;
	cout << endl;

	if (q2ax == q2y && q2ay == q2x) {

		cout << "Correct!" << endl << endl;
	}

	else {

		cout << "Incorrect! Try again..." << endl << endl;

		QuestionTwo();
	}
}

int main()
{
	srand(time(0));
	cout << "Geometry Chapter 9" << endl << endl;

	QuestionOne ();

	system ("pause");
	return 0;
}


I am not getting a "Correct!" or "Incorrect!" whether I get it right or wrong. What's the problem? Plus I am receiving build errors but I don't know from where.
Last edited on
MiiNiPaa (8886)
A) remove all unneccesary includes, leave only
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#include <iostream>
#include <ctime>

B) Forward declare QuestionTwo():
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void QuestionTwo(); //Forward declaration

void QuestionOne()
{
//...
}

void QuestionTwo() //Definition
{
//...

C) How do you know if you have some runtime error if your project doesn't compile?
omurad (38)
To answer C when I build without compiling it says 0 succeeded 1 failed

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// Geometry Chapter 9 Project.cpp : Defines the entry point for the console application.
//

#include "iostream"
#include <ctime>
using namespace std;

void QuestionTwo();

void QuestionOne ()
{
	cout << "Question 1:" << endl << endl;
	int q1x, q1y, q1vx, q1vy, q1ax, q1ay;
	q1x = rand() % 10 + 1;
	q1y = rand() % 10 + 1;
	q1vx = rand() % 10 + 1;
	q1vy = rand() % 10 + 1;

	cout << "Point " << q1x << ", " << q1y << " is being translated with vector <" << q1vx << ", " << q1vy << ">." << endl << "What are the coordinated of the new image formed?" << endl;
	cout << "x = ";
	cin >> q1ax;
	cout << endl << "y = ";
	cin >> q1ay;
	cout << endl;

	if (q1ax == (q1x + q1vx) && q1ay == ( q1y + q1vy)) {

		 cout << "Correct! Next Question..." << endl << endl;

	QuestionTwo ();
	}

	else {
    cout << "Incorrect! Please try again" << endl << endl;
    QuestionOne ();
}
	
}

void QuestionTwo ()
{
	int q2x, q2y, q2ax, q2ay;
	q2x = rand() % 10 + 1;
	q2y = rand() % 10 + 1;
	q2ax = q2y;
	q2ay = q2x;
	
	cout << "Point " << q2x << ", " << q2y << "is being rotated 90 degrees clockwise." << endl << "What are the coordinates after the rotation?" << endl << endl;
	cout << "x = ";
	cin >> q2ax;
	cout << endl << "y = ";
	cin >> q2ay;
	cout << endl;

	if (q2ax == q2y && q2ay == q2x) {

		cout << "Correct!" << endl << endl;
	}

	else {

		cout << "Incorrect! Try again..." << endl << endl;

		QuestionTwo();
	}
}

int main()
{
	srand(time(0));
	cout << "Geometry Chapter 9" << endl << endl;

	QuestionOne ();

	system ("pause");
	return 0;
}


Is this what you mean by forward declaring? Because this didn't work but I might have done it wrong. Thanks for the help
MiiNiPaa (8886)
It is <iostream> and your code works fine for me (aside from wrong answer calculation in QuestionTwo). Might be something in your project settings. Try to create a new project and copy code there.
Last edited on
omurad (38)
Hmm..still getting "1 failed" even with a new project I'm using Visual Express C++ 2010. What settings should I have? And I thought that when you rotate a point with positive coordinates the x and y values switch?
omurad (38)
IT WORKED! My problem was that I checked the "Use precompiled header". Thank you so much MiiNiPaa!
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