Can someone tell me if this code is right?

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hello everyone
i wanted to ask you if you can give me the solution to this example?
because i have tried these codes and i don't think it is right.
the example is this : Write a complete C program that reads 3 variables.
The first variable is an integer named x. The second variable is a float named y and the third variable is a character named z.
Then, print variable x multiplied by 10. variable y divided by 2 and the next character after z (z+1).

What I have tried:

C++

// K.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <stdio.h>	
using namespace std;

int main()
{
	int x = 2;
	cout << "2*10=" << 2 * 10 << endl;
	float y = 1.5;
	cout << "1.5/2=" << 1.5 / 2 << endl;
	char z =5 ;
	cout << "z*(z+1)=" << z*(z+1)<< endl;
    return 0;
}

Posted 1-Sep-16 11:05am

Member 12715808

Updated 2-Sep-16 11:16am

Patrice T

v3

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Philippe Mori 2-Sep-16 18:18pm

Maybe you have slept too much during your course!

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Patrice T · Answer 1 · 2016-09-01T11:46:00

C++

int x = 2;
cout << "2*10=" << 2 * 10 << endl;

Bug 1: you are requested to print variable x multiplied by 10. What if suddenly x= 5 ?

C++

float y = 1.5;
cout << "1.5/2=" << 1.5 / 2 << endl;

Bug 2: you are requested to print variable y divided by 2. What if suddenly y= 3.5 ?

C++

char z =5 ;
cout << "z*(z+1)=" << z*(z+1)<< endl;

Bug 3: you are requested to print the next character after z (aka z+1). You are not requested to print z*(z+1).
Advice: z being a char, z='a' would be more likely.

[Update]

C++

int x  ;
float y  ;
char z = 'a';

You should give values to x and y
To know if program is ok, just rub it many times and change the values to see if results are ok.

Matt T Heffron · Answer 2 · 2016-09-02T11:16:00

You're missing an important requirement:

Write a complete C program that reads 3 variables.

You should use cin to get the values for the 3 variables, not just assign constant values. Like:

C++

int main()
{
  int x;
  float y;
  char z;
  cout << "Enter x (int):";
  cin >> x;
  cout << "Enter y (float):";
  cin >> y;
  cout << "Enter z (char):";
  cin >> z;
  // etc...

Can someone tell me if this code is right?

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