line 19: cin>>input is a buffer overflow vuln, as well as lines 21 and 23.

To fix it, do:

char str[10];
cin.width(10);
cin >> str;

You missed case 5.

@apw5020: Use this as a basis.

(I know I'm a bit late from OP)
Went through this code and found a solution to case five.

Put in:
# include <cmath>
...
...
...
case 5:
answer = pow(num0,num1);
break;

Hey guys,

Just thought that we can use the while loop too here before. Also I think that you need to include the math lib to use the pow function.

#include <iostream.h>
#include <math.h>


int main()
{

float num0, num1, answer;
int input;
cout << "\\n\\n\\nOptions:\\n";
cout << "1 [Multiplication]\\n";
cout << "2 [Addition]\\n";
cout << "3 [Subtraction]\\n";
cout << "4 [Division]\\n";
cout << "5 [Exponents]\\n";
cout << "\\nFirst number: ";
cin >> num0;
cout << "\\nSecond number: ";
cin >> num1;
cout << "\\n\\n Which option: ";
cin >> input;
while (input>5 || input <1)
{
cout << "\\n\\nNot an option! \n\n Enter again";
cin >> input;
}

switch(input)
{
case 1: answer = num0 * num1;
break;
case 2: answer = num0 + num1;
break;
case 3: answer = num0 - num1;
break;
case 4: answer = num0 / num1;
break;
case 5: answer = pow(num0, num1);
break;
}
}