The provided code generates a random integer between 1 and...

August 27, 2025 at 07:38 PM

int numeroRandom = 1 + (rand() % 3);

The provided code generates a random integer between 1 and 3 (inclusive). Here's a breakdown of what each part does:

int numeroRandom = 1 + (rand() % 3);
  1. rand(): This function generates a pseudo-random integer, typically between 0 and RAND_MAX (a predefined constant that depends on the system, defined in <stdlib.h>).

  2. rand() % 3: The modulus operator (%) restricts the output of rand() to a range of values from 0 to 2. This is because taking rand() % 3 will give you the remainder when dividing rand() by 3, which is always in the range 0, 1, 2.

  3. 1 + ...: Adding 1 shifts the range from 0-2 to 1-3. This ensures the output is in the inclusive range [1, 3].

Final Behavior

The code assigns a random integer between 1 and 3 (inclusive) to the variable numeroRandom. Note that the randomness of rand() depends on whether srand() has been used to seed the random generator beforehand. If srand() is not called, you might get the same sequence of values each time the program runs.

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