laborator 1

#include <iostream>
using namespace std;
int main() {
    //1
    cout << "     *     " << endl;
    cout << "    ***   " << endl;
    cout << "   *****  " << endl;
    cout << "  *******  " << endl;
    cout << "     *     " << endl;
    cout << "     *     " << endl;

    cout << " " << endl;

    //2
    cout << string(1, ' ') << endl;
    cout << string(4, ' ') << string(1, '*') << endl;
    cout << string(3, ' ') << string(3, '*') << endl;
    cout << string(2, ' ') << string(5, '*') << endl;
    cout << string(1, ' ') << string(7, '*') << endl;
    cout << string(4, ' ') << string(1, '*') << endl;
    cout << string(4, ' ') << string(1, '*') << endl;

    cout << " " << endl;

    //3
    int i;
    int n;
    n = 4;

    i = 1; cout << string(3, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;
    i = 2; cout << string(2, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;
    i = 3; cout << string(1, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;
    i = 4; cout << string(0, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;
    i = 1; cout << string(n-1, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;
    i = 1; cout << string(n-1, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;

    cout << " " << endl;

    //4

    n = 4;
    for (i = 1; i <= n; i++)

    {
        cout << string(n - i, ' '); cout << string((i - 1) * 2 + 1, '*') << endl;

    }
    cout << string(n - 1, ' '); cout << string(1, '*') << endl;
    cout << string(n - 1, ' '); cout << string(1, '*') << endl;

}