cpp/Q37.cpp at main · Priyasha-Yadav/cpp · GitHub

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// 36. Print a pyramid pattern with n rows.

#include <iostream>
using namespace std;

int main() {
    int n;
    cout << "Enter number of rows: ";
    cin >> n;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n - i - 1; j++) {
            cout << " ";
        }

        for (int j = 0; j < 2 * i + 1; j++) {
            cout << "*";
        }

        cout << endl;
    }

    return 0;
}

//

#include <iostream>
#include <string>
using namespace std;

int main() {
    int n;
    cout << "Enter number of rows: ";
    cin >> n;

    for (int i = 0; i < n; i++) {
        string row = "";

        row += string(n - i - 1, ' ');

        row += string(2 * i + 1, '*');

        cout << row << endl;
    }

    return 0;
}

//

#include <iostream>
using namespace std;

void printPyramid(int n, int i) {
    if (i == n) return;

    for (int j = 0; j < n - i - 1; j++) {
        cout << " ";
    }

    for (int j = 0; j < 2 * i + 1; j++) {
        cout << "*";
    }

    cout << endl;

    printPyramid(n, i + 1);
}

int main() {
    int n;
    cout << "Enter number of rows: ";
    cin >> n;

    printPyramid(n, 0);

    return 0;
}