Random Numbers Assignment with error found

[kg98]

Hello, so I was assigned to write a program that allows a person to input two numbers and find the sum of the two.
My teacher gave us the beginning of the code to start, which is

#include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
using namespace std;

int main() {
 unsigned seed = time(0);
 unsigned short FirstRandom, SecondRandom;

 srand(seed);
 FirstRandom = (rand() % 901) + 100;

and I added this to it...

  #include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <iomanip>
using namespace std;

int main() {
    unsigned seed = time(0);
    unsigned long FirstRandom, SecondRandom, total;
    
    srand(seed);
    FirstRandom = (rand() % 901) + 100;
    SecondRandom = (rand() % 901) + 100;
    total = FirstRandom + SecondRandom;

    //Welcome Message
    cout<<"Hello and welcome to the tutoring center.\n\nIn order to get started with your first addition problem please enter the first number: "<<endl;
    cin>>FirstRandom;
    
    cout<<"\nNow please enter the second number: "<<endl;
    cin>>SecondRandom;

   //Waits for student to press Enter in order to proceed
    cout<<"\nNow once you are done solving the problem yourself, please press the enter button to receive the answer."<<endl;
    cin.get();
    
    //The Answer
    
    cout<<"The sum of "<< setw(5) << FirstRandom << "and";
    cout<< setw(5) << SecondRandom << "is " << setw(5) << total <<endl;
    
    return 0;
]

but on xCode it gives me this error (implicit conversion loses integer precision: "time_t" (aka 'long') to 'unsigned int') on the statement

unsigned seed = time(0);

Please help,
thanks!

[Golden Lizard]

Either do this:

unsigned seed = unsigned(time(0));

Or ditch the variable altogether

srand(time(0));

Or use a C++ random engine, since you use C++:
http://www.cplusplus.com/reference/random/

std::mt19937 rng;
rng.seed(std::chrono::steady_clock::now());