Random

In the future steps, we will work with multiple arrays simultaneously. It can be a bit painful to fill them manually. Let’s write the program, which will fill the array with random values. To generate a random number, you can use the function rand():


              12
            
int a = rand();
cout << a;

Too large, isn’t it? To set restrictions on the range in which you want to get a number, use the symbol %. For instance, the following code will print a random number less than 10:


python

You can also set the start of the required range. Just add +. The following program will write the random number in the range of 10 to 20:


python

Now we know how to get the random value. Let’s fill the array with random numbers from 1 to 20!


              1234
            
for (int i = 0; i < 5; i++){
&nbsp;&nbsp;&nbsp;&nbsp;numbers[i] = rand() % 20 + 1;
&nbsp;&nbsp;&nbsp;&nbsp;cout << numbers[i] << " ";
}

Random is often used in game development. Let’s play!

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 1. Kapitel 4

Fråga AI

Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal

Kursinnehåll

C++ Intermediate | Mobile-Friendly