Dog age calculator won't calculate (if...else if)

[Saibachick]

Here is my code.

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

int main()

{
int actualage = 0, dogweight = 0;

cout << "Welcome to Sari's dog age calculator!" << endl;
cout << endl;

cout << "Please enter the actual age of your dog (1-16): " << endl;
cin >> actualage;

if (actualage<1) {
cout << "Invalid age. Please enter a number between 1 and 16. " << endl;
cin >> actualage;
}
else if (actualage>16){
cout << "Invalid age. Please enter a number between 1 and 16. " << endl;
cin >> actualage;

}
if ((actualage >= 1) && (actualage <= 16)) {
cout << "Please enter your dog's weight in pounds: " << endl;
cin >> dogweight;
}
if ((dogweight >= 20) && (dogweight <= 50) && (dogweight < 20) && (dogweight > 50)
&& (actualage >= 2) && (actualage <= 16)) {
cout << "Your dogs age is in human years is: " << 4 * actualage + 16 << endl;
}

else if (actualage == 1) {
cout << "Your dog's age in human years is: " << actualage + 14 << endl;
}
else if ((dogweight >= 20) && (dogweight <= 50) && (actualage >= 6) && (actualage <= 16)) {
cout << "Your dog's age in human years is: " << 4.5 * actualage + 16 << endl;
}
else if ((dogweight >= 50) && (actualage >= 6) && (actualage <= 16)) {
cout << "Your dog's age in human years is: " << 7.5 * actualage << endl;
}

system("PAUSE");
return 0;

}

I seem to have quite a few things right but there is one thing that happens that confuses me and that's that whenever I type in a dog's weight that is between 20 and 50 it doesn't calculate to get the age in human years.

Works fine for below 20 and over 50 but not in between.

What exactly am I doing wrong?

Any help is appreciated :)

[Too Explosive]

Because both cases can never be true at the same.

if ((dogweight >= 20) && (dogweight <= 50) && (dogweight < 20) && (dogweight > 50)

. How can it be greater than or equal to 20 and at the same time be less than 20?

P. S. Please use code tags for future posts.

[Saibachick]

Oh, crap. Can't believe I missed that. Thank you very much honestly :D

I'll remember the code tags, too.