Random number in array

Projects Programming
6

Hello
Take this sketch. Try and check it out for your project.

constexpr int SizeOfArray {10};
int randomNumbers[SizeOfArray];
void setup() {
  Serial.begin(9600);
  randomSeed(analogRead(0));
  for (auto &randomNumber : randomNumbers) randomNumber = -1;
  int write_ = 0;
  do {
    int random_ = random(0, SizeOfArray);
    bool douple = false;
    for (int read_ = 0; read_ < write_ + 1; read_++) if (random_ == randomNumbers[read_]) douple = true;
    if (!douple) randomNumbers[write_++] = random_;
  } while (!(write_ == SizeOfArray));
  for (auto randomNumber : randomNumbers) Serial.print(randomNumber),  Serial.print(F(" "));
  Serial.println(F(" "));
}
void loop() {

}

Have nice day and enjoy coding in C++.