Guessing Game in C++

///Guessing Game in C++
#include <iostream>
using namespace std;
main(){
     
    int secretNumber = 0, userNumber = 0;
    int lowerNumber=0;
    int upperNumber=0;
 

    cout<<"My Student ID is BC123456789 "<<endl;
    cout<<"Please enter the lower Number: ";
    cin>>lowerNumber;
                 cout<<"Please enter the upper Number: ";
    cin>>upperNumber;

    cout<<"Computer is calculating a random secret number...";
 
    srand(time(NULL));
    secretNumber = rand()%upperNumber+lowerNumber;
    cout<<"Done!"<<endl<<endl;
 
    cout<<"Please guesss the secret number in the range  "<<"["<<lowerNumber<<" - "<<upperNumber<<"]:";
    cin>>userNumber;
 
    if(userNumber > secretNumber){
        cout<<"Oooppssss...your entered number is too high...Computer won"<<endl;
    }  
    else if(userNumber < secretNumber){
        cout<<"Oooppssss...your entered number is too low...Computer won"<<endl;
    }      
    else if(userNumber == secretNumber) {
        cout<<"Wawoooo...Congratulations!...You won"<<endl;
    }  
    else{
        cout<<"Invalid Input"<<endl;      
    }  
    cout<<"\n\nSecret Number was: "<<secretNumber<<endl<<endl;
 
    system("pause");
 
}  
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By Hafiz Muhammad Umar Hayat