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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- namespace _3.Problem_Trapetzoid
- {
- class Program
- {
- static void Main()
- {
- int N = int.Parse(Console.ReadLine());
- char[] line = new char[2 * N];
- for (int i = 0; i < 2*N; i++)
- {
- line[i] = '.';
- }
- for (int i = 0; i < N+1; i++)
- {
- if (i == 0)
- {
- for (int p = N; p < 2 * N; p++)
- {
- line[p] = '*';
- }
- }
- else if (i == 1)
- {
- for (int p = N; p < (2 * N)-1; p++)
- {
- line[p] = '.';
- }
- line[N - i] = '*';
- }
- else if (i == N)
- {
- for (int p = 0; p < 2 * N; p++)
- {
- line[p] = '*';
- }
- }
- else
- {
- line[N - i] = '*';
- line[N - i + 1] = '.';
- line[(2 * N) - 1] = '*';
- }
- for (int p = 0; p < 2*N; p++)
- {
- Console.Write(line[p]);
- }
- Console.WriteLine();
- }
- }
- }
- }
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