c++ random
To generate random numbers in C++, you can make use of the <random>
library. Here are the steps to generate random numbers in C++:
- Include the
<random>
library:
#include <random>
- Create a random number generator engine:
std::random_device rd;
std::mt19937 gen(rd());
In this step, we use std::random_device
to obtain a random seed for the generator engine. Then, we use std::mt19937
as the generator engine, which is a widely used and well-tested random number generator.
- Define the distribution range:
std::uniform_int_distribution<> dis(min, max);
Here, min
and max
represent the minimum and maximum values for the desired range of random numbers. The std::uniform_int_distribution
is used to define a uniform distribution of integers within the specified range.
- Generate random numbers:
int randomNum = dis(gen);
This line generates a random number within the defined range using the generator engine gen
and the distribution dis
. The generated random number is then assigned to the variable randomNum
.
You can repeat step 4 to generate multiple random numbers as needed.
Remember to include the necessary headers and use the appropriate namespaces in your code.