Upload files to "array"

array/array_tutti_pari.cpp

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+/*
+AUTORE: Vichingo455
+Function returning if all values stored in an array of values are peer numbers or not
+*/
+#include <iostream>
+#include <array>
+#include <vector>
+#include <cstdlib>
+using namespace std;
+bool isPeerArray(int array[], size_t size) {
+	int numberOfPeers = 0;
+	for (int i = 0; i < size; i++) {
+		if (array[i] % 2 == 0) {
+			numberOfPeers++;
+		}
+	}
+	return numberOfPeers == size;
+}
+int main() {
+	size_t numberOfValues;
+	cout << "Insert the number of values to store on an array: ";
+	cin >> numberOfValues;
+	cout << endl;
+	int array[numberOfValues];
+	for (int i = 0; i < numberOfValues; i++) {
+		cout << "Insert the value: ";
+		cin >> array[i];
+	}
+	if (isPeerArray(array, numberOfValues)) {
+		cout << "All numbers are peers." << endl;
+	}
+	else {
+		cout << "Not all numbers are peers." << endl;
+	}
+    return 0;
+}

array/elimina_pari_vettori.cpp

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+/*
+AUTORE: Vichingo455
+The program deletes peer numbers from a vector without using memmove
+*/
+#include <iostream>
+#include <array>
+#include <vector>
+#include <cstdlib>
+using namespace std;
+void printVector(const vector<int> & vett) {
+	for (int i = 0; i < vett.size(); i++)
+		cout << vett.at(i) << " ";
+	cout << endl;
+}
+void deletePeers(vector<int> & vett) {
+	for (int i = 0; i < vett.size(); i++) {
+		if (vett.at(i) % 2 == 0) {
+			vett.erase(vett.begin() + i);
+		}
+	}
+}
+int main() {
+	vector<int> vett;
+	int vectorSize;
+	cout << "Insert the size of the vector: ";
+	cin >> vectorSize;
+	cout << endl;
+	for (int i = 0,value; i < vectorSize; i++) {
+		cout << "Insert a value: ";
+		cin >> value;
+		vett.push_back(value);
+		cout << endl;
+	}
+	printVector(vett);
+	deletePeers(vett);
+	printVector(vett);
+    return 0;
+}

array/elimina_pari_vettori_memmove.cpp

@@ -0,0 +1,46 @@
+/*
+AUTORE: Vichingo455
+The program deletes peer numbers from a vector using memmove
+*/
+#include <iostream>
+#include <array>
+#include <vector>
+#include <cstdlib>
+#include <cstring>
+using namespace std;
+void printVector(const vector<int> & vett) {
+	for (int i = 0; i < vett.size(); i++)
+		cout << vett.at(i) << " ";
+	cout << endl;
+}
+void deletePeers(vector<int>& vec) {
+    int* data = vec.data();
+    size_t size = vec.size();
+    size_t newSize = 0;
+    for (size_t i = 0; i < size; ++i) {
+        if (data[i] % 2 != 0) {
+            if (newSize != i) {
+                std::memmove(&data[newSize], &data[i], sizeof(int));
+            }
+            ++newSize;
+        }
+    }
+    vec.resize(newSize);
+}
+int main() {
+	vector<int> vett;
+	int vectorSize;
+	cout << "Insert the size of the vector: ";
+	cin >> vectorSize;
+	cout << endl;
+	for (int i = 0,value; i < vectorSize; i++) {
+		cout << "Insert a value: ";
+		cin >> value;
+		vett.push_back(value);
+		cout << endl;
+	}
+	printVector(vett);
+	deletePeers(vett);
+	printVector(vett);
+    return 0;
+}