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http://cprogrammingcodes.blogspot.in/p/pyramid.htmlQn 1 @@@@@@@@@@@@@@@@@@@@@@@@@

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;

namespace ConsoleApplication6{ class Program { static void Main(string[] args) { int i, j, n; Console.WriteLine("\nEnter number of rows: \n"); n = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nPattern is: \n"); for (i = 0; i < n; i++) { for (j = 0; j < n; j++) Console.Write("@"); Console.Write("\n"); } Console.ReadLine(); } }}

Qn 2 ##### #### ### ## #using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;

namespace ConsoleApplication6{ class Program { static void Main(string[] args) { int i,j,k,n; Console.WriteLine("\nEnter number of rows: \n"); n = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nPattern is: \n"); for (i = 0; i < n; i++) { for (j = 0; j < i; j++) Console.Write(" "); for (k = n; k >= i; k--) Console.Write("#"); Console.Write("\n"); } Console.ReadLine(); } }}

Qn 3@@@@@@@@@@@@@@@using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;

namespace ConsoleApplication6{ class Program { static void Main(string[] args) { int i, j, n; Console.WriteLine("\nEnter number of rows: \n"); n = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nPattern is: \n"); for (i = n; i >= 1 ; i--) { for (j = 0; j < i; j++) Console.Write("@"); Console.Write("\n"); } Console.ReadLine(); } }}

Qn 4 ###############using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;

namespace ConsoleApplication6{ class Program { static void Main(string[] args) { int i, j, n; Console.WriteLine("\nEnter number of rows: \n"); n = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nPattern is: \n"); for (i = 0; i < n; i++) { for (j = 0; j