#include <iostream> using namespace std; int main() { int ogorki[] = {13, 123,21, 5 ,1245, 242,1, 412}; for (int iterator : ogorki) { cout << iterator << endl; } return 0; }

#include <iostream> #include <vector> using namespace std; int main() { // Declaration of vector vector <int> num = {1, 2, 3, 4}; // Front element of vector cout << num.front() << endl; // Back element of vector cout << num.back() << endl; // Size of vector elements (size is how many elements that vector actually holds in the moment) cout << num.size() << endl; // Capacity of vector elements (capacity is how many elements vector can hold(reserved space)) cout << num.capacity() << endl; // Pushing to back of vector element num.push_back(5); for (int i = 0; i < num.size(); i++) { cout << num[i] << endl; } // Deleting element from back of vector num.pop_back(); for (int i = 0; i < num.size(); i++) { cout << num[i] << endl; } // Inserting element in vector at !!!BEGINNING!!!  num.insert(num.begin(), 30); cout << num.front() << endl; // Erasing element in !!!END!!! of vector num.erase(num.end()); cout << num.back() << endl; return 0; }

#include <iostream> using namespace std; int main() { int number; int x; cout << "How many elements in array: "; cin >> x; // Main structure of dynamic array int *arrayOne; arrayOne = new int [x]; for (int i = 0; i < x; i++) { cout << "Write number: "; cin >> arrayOne[i]; } // Writing on screen every value of dynamic array for (int i = 0; i < x; i++) { cout << arrayOne[i] << " "; } // Removing array from memory and giving it value NULL to prevent crashes delete [] arrayOne; arrayOne = NULL; return 0; } 

#include <bits/stdc++.h> #include <ctime> using namespace std; void bubbleSort(int arr[], int &n) { int temp; for(int i=0; i<n; i++) { for(int j=0; j<n; j++) { if(arr[j] > arr[j+1]) { swap(arr[j], arr[j+1]);	}	}	} } void array(int arr[], int &n) {	cout << endl;	cout << "Unsorted array: " << endl; for (int i = 0; i<n; i++) {	arr[i] = rand() % 100;	cout << arr[i] << " ";	} bubbleSort(arr, n); } int main() { srand(time(NULL)); setlocale(LC_CTYPE, "Polish"); system("title Bubble Sort"); system("color ce"); int n;	cout << "Enter number of elements: ";	cin >> n; int arr[n]; array(arr, n);	cout << endl;	cout << endl;	cout << "Sorted array: " << endl; for (int i = 0; i<n; i++) {	cout << arr[i] << " ";	} return(0); }

#include <bits/stdc++.h> #include <ctime> using namespace std; float add(float a, float b) { return a+b; } double substraction(double *a, double *b) { return *a-(*b); } int division(int a, int b) { return a/b; } int main() { srand(time(NULL)); setlocale(LC_CTYPE, "Polish"); system("title Switch"); system("color ce"); double a, b; char x;	cout << "Enter first number you want to calculate: ";	cin >> a;	cout << "Enter second number you want to calculate: ";	cin >> b;	cout << endl;	cout << "Avaible characters are: '+', '-', '/'." << endl;	cout << "Enter character that perform the calculation: ";	cin >> x; switch (x) { case '+':	cout << add(a, b) << endl; break; case '-':	cout << substraction(&a, &b) << endl; break; case '/':	cout << division(a, b) << endl; break;	} return(0); }