first commit

listas4/Program.cs

@@ -0,0 +1,49 @@
+using System;
+using exercicios;
+using System.Reflection;
+using System.Linq;
+
+namespace listas4
+{
+    class Program
+    {
+        // Made by F. Raszeja
+		static bool ParseStr(string val)
+		{
+			if (!val.Any(x=> char.IsLetter(x))){
+				int tmp = int.Parse(val);
+				if (tmp != 0 && tmp <= 7) return true;
+			}
+			return false;
+		}
+		
+		static void Main(string[] args)
+        {
+            string sel = "";
+			do{
+				Console.Clear();
+				
+				Console.BackgroundColor = ConsoleColor.White;
+				Console.ForegroundColor = ConsoleColor.Black;
+				Console.WriteLine("Fourth Assignment List");
+				Console.ResetColor();
+				
+				Console.WriteLine("\n1-7\tExamples 1-7");
+				Console.WriteLine("\texit\tQuit to Desktop");
+				
+				Console.Write("--> ");
+				sel = Console.ReadLine();
+				
+				if(sel != "exit" && ParseStr(sel)){
+					Type typesPrograma = Type.GetType("exercicios.exercicio"+sel);
+					MethodInfo aInvocar = typesPrograma.GetMethod(
+						"Init", BindingFlags.Static | BindingFlags.Public);
+					aInvocar.Invoke(null, null);
+				}
+				Console.WriteLine("\nPress any key to continue...");
+				Console.ReadKey();
+			}
+			while(sel.ToLower() != "exit");
+        }
+    }
+}

listas4/listas4.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+</Project>

listas4/src/exercicios1-3.cs

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+using System;
+using System.Linq;
+
+namespace exercicios
+{
+	public class exercicio1
+	{
+		public static void Init()
+		{
+			int[] valores = new int[15];
+			
+			Console.WriteLine("Insert a value, press enter. Goes up to 15 values");
+			
+			for(int i = 0; i < valores.Length; i++)
+			{
+				valores[i] = int.Parse(Console.ReadLine());
+			}
+			for(int i = 0; i < valores.Length; i++)
+			{
+				if(i % 2 == 0)Console.WriteLine("{0} has an even index number in the array.",valores[i]);
+			}
+		}
+	}
+	public class exercicio2
+	{
+		public static void Init()
+		{
+			float[] notas = new float[15];
+			float media;
+			int QtdAbaixo = 0, QtdAcima = 0;
+			
+			Console.WriteLine("Insert the grade, press enter. Goes up to 15 values");
+			
+			for(int i = 0; i < notas.Length; i++)
+			{
+				notas[i] = float.Parse(Console.ReadLine());
+			}
+			
+			media = notas.Sum() / notas.Length;
+			
+			foreach(float i in notas)
+			{
+				if(i > media)QtdAcima++;
+				if(i < media)QtdAbaixo++;
+			}
+			Console.WriteLine("Avg. : {0:N2}, Students below: {1}, Students above: {2}",media,QtdAbaixo,QtdAcima);
+		}
+	}
+	public class exercicio3
+	{
+		public static void Init()
+		{
+			string[] nome = new string[10];
+			float[] preco = new float[10];
+			float srch;
+			int e = 0;
+			
+			Console.WriteLine("Insert a name, press enter. Goes up to 10 values.");
+			
+			for(int i = 0; i < nome.Length; i++)
+			{
+				nome[i] = Console.ReadLine();
+			}
+			
+			Console.WriteLine("Insert a price, press enter. Goes up to 10 values.");
+			
+			for(int i = 0; i < preco.Length; i++)
+			{
+				preco[i] = float.Parse(Console.ReadLine());
+			}
+			
+			Console.WriteLine("Insert the highest possible price to search with.");
+			
+			srch = float.Parse(Console.ReadLine());
+			
+			while(e < preco.Length)
+			{
+				if(preco[e] <= srch)
+				{
+					Console.WriteLine("{0}: $ {1:N2}",nome[e],preco[e]);
+				}
+				e++;
+			}
+		}
+	}
+}

listas4/src/exercicios4-5.cs

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+using System;
+using System.Linq;
+
+namespace exercicios
+{
+	public class exercicio4
+	{
+		public static void Init()
+		{
+			int[,] valores = new int[5,5];
+			int somaTot = 0, somaLin = 0;
+			
+			Console.WriteLine("Insert a value, press enter. End goal is to fill a 5x5 matrix.");
+			
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				for(int l = 0; l < valores.GetLength(1); l++)
+				{
+					valores[k,l] = int.Parse(Console.ReadLine());
+				}
+			} 
+			
+			foreach(int i in valores)
+			{
+				somaTot += i;
+			}
+			Console.WriteLine("Total sum:{0}",somaTot);
+			
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				somaLin = 0;
+				for(int l = 0; l < valores.GetLength(1); l++)
+				{
+					somaLin += valores[k,l];
+				}
+				Console.WriteLine("Line: {0}, Sum: {1}",k,somaLin);
+			}
+		}
+	}
+	public class exercicio5
+	{
+		public static void Init()
+		{
+			int[,] valores = new int[4,5];
+			int ParMed, ImparMed, QtdPar, QtdImpar;
+			ParMed = ImparMed = QtdImpar = QtdPar = 0;
+			
+			Console.WriteLine("Insert a value, press enter. End goal is to fill a 4x5 matrix.");
+			
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				for(int l = 0; l < valores.GetLength(1); l++)
+				{
+					valores[k,l] = int.Parse(Console.ReadLine());
+				}
+			}
+			
+			foreach(int i in valores)
+			{
+				if(i % 2 == 0)
+				{
+					QtdPar++;
+					ParMed += i;
+				}
+				else
+				{
+					QtdImpar++;
+					ImparMed += i;
+				}
+			}
+			
+			Console.WriteLine("Odd: {0}, Even: {1}, Sum Odd: {2}, Sum Even: {3}, Avg. Odd: {4:N2}, Avg. Even: {5:N2}",
+			QtdImpar,QtdPar,ParMed,ImparMed,(double)ImparMed/QtdImpar,(double)ParMed/QtdPar);
+		}
+	}
+}

listas4/src/exercicios6.cs

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+using System;
+using System.Linq;
+
+namespace exercicios
+{
+	public class exercicio6
+	{
+		public static void Init(){
+			int[,] valores = new int[5,5];
+			int sumP = 0, sumS = 0;
+			Random random = new Random();
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				for(int l = 0; l < valores.GetLength(1); l++)
+				{
+					valores[k,l] = random.Next(1,25);
+				}
+			} 
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				for(int l = 0; l < valores.GetLength(1); l++)
+				{
+					valores[k,l] = random.Next(1,25);
+				}
+			}
+			
+			Console.WriteLine("\nPrimary diagonal");
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				sumP += valores[k,k];
+				Console.Write("{0}\t\n",valores[k,k]);
+				
+			}
+			
+			Console.WriteLine("\nSecondary diagonal");
+			for(int k = 0; k < valores.GetLength(0); k++)
+			{
+				sumS += valores[k,valores.GetLength(0)-k-1];
+				Console.Write("{0}\t\n",valores[k,valores.GetLength(0)-k-1]);
+			}
+			Console.WriteLine("\n{0} - Sum Primary, {1} - Sum Secondary", sumP, sumS);
+		}
+	}
+}

listas4/src/exercicios7.cs

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+using System;
+using System.Linq;
+
+namespace exercicios
+{
+	public class exercicio7
+	{
+		public static void Init()
+		{
+			Console.WriteLine("Insert a name, then 3 grades.\nYou'll have to do this 10 times.");
+			string[] nome = new string[10];
+			float[,] nota = new float[10,3];
+			float sum = 0;
+			
+			for(int k = 0; k < nota.GetLength(0); k++)
+			{
+				Console.WriteLine("\nInsert a name.");
+				nome[k] = Console.ReadLine();
+				for(int l = 0; l < nota.GetLength(1); l++)
+				{
+					// Original portuguese code had a {0}ª, representing what exam/assignment you're grading. Can't be arsed to localise this.
+					Console.WriteLine("Insert the grade.");
+					nota[k,l] = float.Parse(Console.ReadLine());
+				}
+			}
+			
+			for(int k = 0; k < nota.GetLength(0); k++)
+			{
+				for(int i = 0; i < nota.GetLength(1); i++)
+				{
+					sum += nota[k,i];
+				}
+
+				if((sum/3) >= 7)
+				{
+					Console.ForegroundColor = ConsoleColor.Blue;
+				}
+				else
+				{
+					Console.ForegroundColor = ConsoleColor.Red;
+				}
+				
+				Console.Write("\nStudent: {0}:\t", nome[k]);
+				for(int l = 0; l < nota.GetLength(1); l++)
+				{
+					Console.Write("{0:N2}\t",nota[k,l]);
+				}
+				Console.Write("{0:N2}",sum/3);
+				sum = 0;
+				Console.ForegroundColor = ConsoleColor.White;
+			}
+		}
+	}
+}