School-Coding-Cpp/array/elimina_pari_vettori_memmov...

47 lines
1.1 KiB
C++

/*
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;
}