rand() examples in c++

C++ Syntax (Toggle Plain Text)

#include  


#include 


 


using namespace std;


 


int main() 


{ 


    int random_integer = rand(); 


    cout << random_integer << endl; 


}

 

 


 

C++ Syntax (Toggle Plain Text)




#include  


#include 


 


using namespace std;


 


int main() 


{ 


    cout << "The value of RAND_MAX is " <<  RAND_MAX << endl; 


}

 

 

 


 

C++ Syntax (Toggle Plain Text)




#include  


#include  


#include 


 


using namespace std;


 


int main() 


{ 


    srand((unsigned)time(0)); 


    int random_integer = rand(); 


    cout << random_integer << endl; 


}

 

 

 

 


 

C++ Syntax (Toggle Plain Text)




#include  


#include  


#include 


 


using namespace std;


 


int main() 


{ 


    srand((unsigned)time(0)); 


    int random_integer; 


    for(int index=0; index<20; index++){ 


        random_integer = (rand()%10)+1; 


        cout << random_integer << endl; 


    } 


}

 

 

 


 

C++ Syntax (Toggle Plain Text)




#include  


#include  


#include 


 


using namespace std;


 


int main() 


{ 


    srand((unsigned)time(0)); 


    int random_integer; 


    int lowest=1, highest=10; 


    int range=(highest-lowest)+1; 


    for(int index=0; index<20; index++){ 


        random_integer = lowest+int(range*rand()/(RAND_MAX + 1.0)); 


        cout << random_integer << endl; 


    } 


}