Pascal's_triangle.cpp

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

class Solution {
public:
    vector<vector<int>> generate(int numRows) {
        vector<vector<int>> result(numRows);
        for (int i = 0; i < numRows; i++) {
            result[i] = vector<int>(i + 1, 1); // initialize each row with 1s
            for (int j = 1; j < i; j++) {
                result[i][j] = result[i - 1][j - 1] + result[i - 1][j];
            }
        }
        return result;
    }
};

int main() {
    Solution s;
    int numRows;
    cout << "Enter number of rows for Pascal's Triangle: ";
    cin >> numRows;

    vector<vector<int>> triangle = s.generate(numRows);

    cout << "\nPascal's Triangle:\n";
    for (const auto& row : triangle) {
        for (int val : row) {
            cout << val << " ";
        }
        cout << endl;
    }

    return 0;
}