Switch statement outputs wrong value for cost - c++

Question

When I try to run this code on Microsoft Visual Studio C++; It runs but the value of cost that is being outputted is wrong. Why is that? I do realize that I am not including a default statement, and that I am declaring cost twice, this is because I get the debug error that cost has no declared value, so what I assume is going on is the switch statement is not processing because it some how is not understanding the
cout << "Pizza";
How do I fix this?
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstdlib>
#include <time.h>
#include <Windows.h>
#include <string>
using namespace std;
int main()
{
int a, b, c, d, e, f, m, p, k, User_Input, Pizza , cost;
a = 0;
b = 0;
c = 0;
d = 0;
e = 0;
f = 0;
k = 0;
cost = 0;
cout << "What is your favorite vegetarian food from the list below?" << endl;
Sleep(1500);
cout << "Pizza\n";
Sleep(200);
cout << "IceCream\n";
cin >> User_Input;
switch (User_Input)
{
case 1:
cout << "Pizza";
cost = 5;
break;
case 2:
cout << "IceCream";
cost = 5;
break;
}
Sleep(2000);
cout << "The total cost will be: " << cost;
cout << "\n\n\n\t\t\t";
return 0;
}

Answer 1

User_Input is of type "int", you are going to get unexpected results if you try to read a string via cin to that variable. What you probably want to do is either:
read into a string and do a string comparison
read into a string, convert to an int, and do the switch statement
A simplified example:
#include <iostream>
#include <string>
int main()
{
std::string user_input;
int cost = 0;
std::cout << "What is your favorite vegetarian food from the list below?\nPizza\nIceCream\n";
std::cin >> user_input;
if(user_input == "Pizza") {
cost = 5;
} else if (user_input == "IceCream") {
cost = 10;
}
std::cout << "The total cost will be: " << cost << std::endl;
return 0;
}