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| 1 | +/* |
| 2 | + * EJERCICIO: |
| 3 | + * Explora el concepto de funciones de orden superior en tu lenguaje |
| 4 | + * creando ejemplos simples (a tu elección) que muestren su funcionamiento. |
| 5 | + * |
| 6 | + * DIFICULTAD EXTRA (opcional): |
| 7 | + * Dada una lista de estudiantes (con sus nombres, fecha de nacimiento y |
| 8 | + * lista de calificaciones), utiliza funciones de orden superior para |
| 9 | + * realizar las siguientes operaciones de procesamiento y análisis: |
| 10 | + * - Promedio calificaciones: Obtiene una lista de estudiantes por nombre |
| 11 | + * y promedio de sus calificaciones. |
| 12 | + * - Mejores estudiantes: Obtiene una lista con el nombre de los estudiantes |
| 13 | + * que tienen calificaciones con un 9 o más de promedio. |
| 14 | + * - Nacimiento: Obtiene una lista de estudiantes ordenada desde el más joven. |
| 15 | + * - Mayor calificación: Obtiene la calificación más alta de entre todas las |
| 16 | + * de los alumnos. |
| 17 | + * - Una calificación debe estar comprendida entre 0 y 10 (admite decimales). |
| 18 | + */ |
| 19 | + |
| 20 | +using System; |
| 21 | + |
| 22 | +namespace Roadmap22 |
| 23 | +{ |
| 24 | + class SuperFunctions |
| 25 | + { |
| 26 | + public static double Average(double[] numbers) |
| 27 | + { |
| 28 | + double sum = 0; |
| 29 | + foreach (double number in numbers) |
| 30 | + { |
| 31 | + sum += number; |
| 32 | + } |
| 33 | + return sum / numbers.Length; |
| 34 | + } |
| 35 | + |
| 36 | + public static double Max(double[] numbers) |
| 37 | + { |
| 38 | + double max = numbers[0]; |
| 39 | + foreach (double number in numbers) |
| 40 | + { |
| 41 | + if (number > max) |
| 42 | + { |
| 43 | + max = number; |
| 44 | + } |
| 45 | + } |
| 46 | + return max; |
| 47 | + } |
| 48 | + |
| 49 | + public static double Min(double[] numbers) |
| 50 | + { |
| 51 | + double min = numbers[0]; |
| 52 | + foreach (double number in numbers) |
| 53 | + { |
| 54 | + if (number < min) |
| 55 | + { |
| 56 | + min = number; |
| 57 | + } |
| 58 | + } |
| 59 | + return min; |
| 60 | + } |
| 61 | + |
| 62 | + public static double[] Filter(double[] numbers, Func<double, bool> condition) |
| 63 | + { |
| 64 | + int count = 0; |
| 65 | + foreach (double number in numbers) |
| 66 | + { |
| 67 | + if (condition(number)) |
| 68 | + { |
| 69 | + count++; |
| 70 | + } |
| 71 | + } |
| 72 | + |
| 73 | + double[] result = new double[count]; |
| 74 | + int index = 0; |
| 75 | + foreach (double number in numbers) |
| 76 | + { |
| 77 | + if (condition(number)) |
| 78 | + { |
| 79 | + result[index] = number; |
| 80 | + index++; |
| 81 | + } |
| 82 | + } |
| 83 | + |
| 84 | + return result; |
| 85 | + } |
| 86 | + |
| 87 | + public static double[] Map(double[] numbers, Func<double, double> operation) |
| 88 | + { |
| 89 | + double[] result = new double[numbers.Length]; |
| 90 | + for (int i = 0; i < numbers.Length; i++) |
| 91 | + { |
| 92 | + result[i] = operation(numbers[i]); |
| 93 | + } |
| 94 | + return result; |
| 95 | + } |
| 96 | + |
| 97 | + public static double[] Reduce(double[] numbers, Func<double, double, double> operation) |
| 98 | + { |
| 99 | + double result = numbers[0]; |
| 100 | + for (int i = 1; i < numbers.Length; i++) |
| 101 | + { |
| 102 | + result = operation(result, numbers[i]); |
| 103 | + } |
| 104 | + return new double[] { result }; |
| 105 | + } |
| 106 | + |
| 107 | + public static void Main(string[] args) |
| 108 | + { |
| 109 | + double[] numbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; |
| 110 | + |
| 111 | + Console.WriteLine("Average: " + Average(numbers)); |
| 112 | + Console.WriteLine("Max: " + Max(numbers)); |
| 113 | + Console.WriteLine("Min: " + Min(numbers)); |
| 114 | + |
| 115 | + double[] evenNumbers = Filter(numbers, number => number % 2 == 0); |
| 116 | + Console.WriteLine("Even numbers: " + string.Join(", ", evenNumbers)); |
| 117 | + |
| 118 | + double[] squaredNumbers = Map(numbers, number => number * number); |
| 119 | + Console.WriteLine("Squared numbers: " + string.Join(", ", squaredNumbers)); |
| 120 | + |
| 121 | + double[] sum = Reduce(numbers, (a, b) => a + b); |
| 122 | + Console.WriteLine("Sum: " + sum[0]); |
| 123 | + } |
| 124 | + } |
| 125 | +} |
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