[Времена года](https://acmp.ru/index.asp?main=task&id_task=892)

```
Console.WriteLine("Введите номер месяца: ");
string c = Console.ReadLine();
int a = Convert.ToInt32(c);
if (a == 12 || a == 1 || a == 2)
{
    Console.WriteLine("Winter");
}
if (a >= 3 & a <= 5)
{
Console.WriteLine("Spring");
}
if (a >= 6 & a <= 8)
{ 
Console.WriteLine("Summer");
}
if (a >= 9 & a <= 11)
{ 
Console.WriteLine("Autumn");
}
if (a > 12)
{
    Console.WriteLine("Error");
}
```

[Будильник](https://acmp.ru/index.asp?main=task&id_task=777)

```
Console.WriteLine("Введите час, когда исследователь лег, и час,на который установил будильник:");
var grx = Console.ReadLine();
int a, b;
a = int.Parse(grx.Split()[0]);
b = int.Parse(grx.Split()[1]);
if (1 <= a & a<=12 & b <= 12 & a != b)
{
    if (a < b)
    { 
    Console.WriteLine(b-a);
    }
    if (a > b )
    { 
    Console.WriteLine((a-b)+2);
    }
    
}
else
{
    Console.WriteLine("error");
}
```

[арбузы](https://acmp.ru/index.asp?main=task&id_task=81)

```
string[] inputLines = File.ReadAllLines("INPUT.TXT");
int N = int.Parse(inputLines[0]);    
int[] weights = Array.ConvertAll(inputLines[1].Split(), int.Parse);
int lightest = weights.Min();   
int heaviest = weights.Max();
using (StreamWriter writer = new StreamWriter("OUTPUT.TXT"))      
  {
    writer.WriteLine(lightest + " " + heaviest);      
  }
```

[художник](https://acmp.ru/index.asp?main=task&id_task=27)

```
int w, h, n; 
int[,] canvas; 
  
using (StreamReader reader = new StreamReader("INPUT.TXT")) 
{ 
    string[] wh = reader.ReadLine().Split(); 
    w = int.Parse(wh[0]);  
    h = int.Parse(wh[1]); 
    n = int.Parse(reader.ReadLine()); 
    canvas = new int[w, h]; 
  
    for (int i = 0; i < w; i++) 
    { 
        for (int j = 0; j < h; j++) 
        { 
            canvas[i, j] = 0; 
        } 
    } 
 
    for (int i = 0; i < n; i++) 
    { 
        string[] rectangle = reader.ReadLine().Split(); 
        int x1 = int.Parse(rectangle[0]); 
        int y1 = int.Parse(rectangle[1]); 
        int x2 = int.Parse(rectangle[2]); 
        int y2 = int.Parse(rectangle[3]); 
        for (int x = x1; x < x2; x++) 
        { 
            for (int y = y1; y < y2; y++) 
            { 
                canvas[x, y] = 1;  
            } 
        } 
    } 
} 
int unpaintedArea = 0; 
for (int i = 0; i < w; i++) 
{ 
    for (int j = 0; j < h; j++) 
    { 
        if (canvas[i, j] == 0) 
        { 
            unpaintedArea++;
        } 
    } 
} 
using (StreamWriter writer = new StreamWriter("OUTPUT.TXT")) 
{ 
    writer.WriteLine(unpaintedArea); 
}
```

[цветочки](https://acmp.ru/index.asp?main=task&id_task=504)
```
using System;
using System.IO;

class Program
{
    static void Main()
    {
        string inputPath = "INPUT.TXT";
        string outputPath = "OUTPUT.TXT";
        int K = 0;
        using (StreamReader reader = new StreamReader(inputPath))
        {
            K = int.Parse(reader.ReadLine());
        }

        char[] flowers = { 'G', 'C', 'V' };

        for (int i = 0; i < K; i++)
        {
            char temp = flowers[2];
            flowers[2] = flowers[1];
            flowers[1] = flowers[0];
            flowers[0] = temp;
        }

        using (StreamWriter writer = new StreamWriter(outputPath))
        {
            foreach (char flower in flowers)
            {
                writer.Write(flower);
                writer.Write(' ');
            }
        }
    }
}
```

[торт](https://acmp.ru/index.asp?main=task&id_task=539)

```
string input = File.ReadAllText("INPUT.TXT"); 
int N = int.Parse(input);
int minCuts = N;

if (N == 1) minCuts = 0;
else if (N == 2)
    minCuts = 1;
else
{
    for (int i = 2; i <= N / 2; i++)
    {
        if (N % i == 0)
        {
            minCuts = Math.Min(minCuts, N / i);
        }
    }
}
File.WriteAllText("OUTPUT.TXT", minCuts.ToString());

```