#include <iostream>

using namespace std;

​

int main() {

    // Design Patterns

    cout << "Design patterns are reusable solutions to commonly occurring problems in software development. They provide a way to solve problems that many developers have encountered before, and offer an established way of thinking and designing software." << endl;

    // Importance in Problem Solving

    cout << "Design patterns are important in problem solving as they help avoid reinventing the wheel. Instead of starting from scratch, developers can use known patterns to solve similar problems, saving time and effort." << endl;

    return 0;

}