41 lines
977 B
C++
41 lines
977 B
C++
//Patriche Robert Cosmin
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#include <iostream>
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#include <cstdlib>
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#include <ctime>
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using namespace std;
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double calcolaMediaMultipli3(int arr[], int size);
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int main() {
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const int DIM = 15;
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int numeri[DIM];
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srand(time(0));
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cout << "Array: ";
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for (int i = 0; i < DIM; i++) {
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numeri[i] = rand() % 100 + 1;
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cout << numeri[i] << " ";
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}
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cout << endl;
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double media = calcolaMediaMultipli3(numeri, DIM);
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if (media == -1)
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cout << "Non ci sono multipli di 3." << endl;
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else
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cout << "Media dei multipli di 3: " << media << endl;
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return 0;
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}
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double calcolaMediaMultipli3(int arr[], int size) {
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int somma = 0, count = 0;
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for (int i = 0; i < size; i++) {
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if (arr[i] % 3 == 0) {
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somma += arr[i];
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count++;
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}
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}
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if (count == 0) return -1; // Nessun multiplo di 3
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return static_cast<double>(somma) / count;
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}
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