Diamond-Patterns.cpp

// C++ program to print diamond shape 
// with 2n rows 
#include <bits/stdc++.h> 
using namespace std; 

// Prints diamond pattern with 2n rows 
void printDiamond(int n) 
{ 
	int space = n - 1; 

	// run loop (parent loop) 
	// till number of rows 
	for (int i = 0; i < n; i++) 
	{ 
		// loop for initially space, 
		// before star printing 
		for (int j = 0;j < space; j++) 
			cout << " "; 

		// Print i+1 stars 
		for (int j = 0; j <= i; j++) 
			cout << "* "; 

		cout << endl; 
		space--; 
	} 

	// Repeat again in reverse order 
	space = 0; 

	// run loop (parent loop) 
	// till number of rows 
	for (int i = n; i > 0; i--) 
	{ 
		// loop for initially space, 
		// before star printing 
		for (int j = 0; j < space; j++) 
			cout << " "; 

		// Print i stars 
		for (int j = 0;j < i;j++) 
			cout << "* "; 

		cout << endl; 
		space++; 
	} 
} 

// Driver code 
int main() 
{ 
	printDiamond(5); 
	return 0; 
}