From b8ba9851c7c8c0440754e9a7e40aedaa7531fb77 Mon Sep 17 00:00:00 2001
From: Jesus David Bermudez Sanchez <jdbermudezs@unal.edu.co>
Date: Fri, 5 Feb 2021 17:00:49 -0500
Subject: [PATCH] estoy tratando de diferenciar si la entrada del ususario es
entero, pero no funciona lo que he hecho hasta el momento
---
ejercicio2.ipynb | 105 +++++++++++++++++++++++++++++++----------------
1 file changed, 70 insertions(+), 35 deletions(-)
diff --git a/ejercicio2.ipynb b/ejercicio2.ipynb
index b879272..74f539a 100644
--- a/ejercicio2.ipynb
+++ b/ejercicio2.ipynb
@@ -30,30 +30,16 @@
"metadata": {},
"source": [
"La funcion ``corazon_pascal`` es una funcion que usa recursión para retornar la fila ``n`` del triangulo de Pascal.\n",
- "\n"
+ "\n",
+ "El resultado fundamental\n"
]
},
{
"cell_type": "code",
- "execution_count": 4,
+ "execution_count": 21,
"metadata": {},
"outputs": [],
"source": [
- "#def corazon_pascal(n):\n",
- "# \"\"\"\n",
- "# Esta función recibe un argumento de tipo entero\n",
- "# \n",
- "# Retorna una lista con los numeros de la fila n del triangulo de Pascal\n",
- "# \"\"\"\n",
- "# lista=[]\n",
- "# if n==1:\n",
- "# lista=lista+[1]\n",
- "# elif n==2:\n",
- "# lista=lista+[1,1]\n",
- "# else:\n",
- "# lista_antes=corazon_pascal(n-1)\n",
- "# lista=[1]+[lista_antes[i]+lista_antes[i+1] for i,_ in enumerate(lista_antes) if i<len(lista_antes)-1]+[1]\n",
- "# return lista \n",
"def corazon_pascal(n):\n",
" \"\"\"\n",
" Esta función recibe un argumento de tipo entero\n",
@@ -73,30 +59,79 @@
},
{
"cell_type": "code",
- "execution_count": 6,
+ "execution_count": 27,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def triangulo_pascal(n):\n",
+ " \"\"\"\n",
+ " Esta funcion recibe un string n\n",
+ " \n",
+ " En caso de que la variable n NO sea un numero entero\n",
+ " imprime un mensaje en pantalla solicitando un entero\n",
+ " \"\"\"\n",
+ " \n",
+ " for x in n:\n",
+ " if x==\".\":\n",
+ " print(\"El numero ingresado no es entero\")\n",
+ " break\n",
+ " elif x==\",\":\n",
+ " print(\"El numero ingresado no es entero\")\n",
+ " break\n",
+ " elif x==\"j\":\n",
+ " print(\"El numero ingresado no es entero\")\n",
+ " break\n",
+ " else:\n",
+ " n=int(n)\n",
+ " return corazon_pascal(n)\n",
+ " \n",
+ " "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 28,
"metadata": {},
"outputs": [
{
- "data": {
- "text/plain": [
- "[1, 1]"
- ]
- },
- "execution_count": 6,
- "metadata": {},
- "output_type": "execute_result"
+ "name": "stdin",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ "Introduzca un numero entero mayor que cero,\n",
+ "se retornará la fila n del triangulo de Pascal\n",
+ "\n",
+ " 3.\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n"
+ ]
+ },
+ {
+ "ename": "ValueError",
+ "evalue": "invalid literal for int() with base 10: '3.'",
+ "output_type": "error",
+ "traceback": [
+ "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+ "\u001b[0;31mValueError\u001b[0m Traceback (most recent call last)",
+ "\u001b[0;32m<ipython-input-28-e4e9f4a68874>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m 5\u001b[0m \"\"\")\n\u001b[1;32m 6\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 7\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mtriangulo_pascal\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mnumero_usuario\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+ "\u001b[0;32m<ipython-input-27-24d483c36d8d>\u001b[0m in \u001b[0;36mtriangulo_pascal\u001b[0;34m(n)\u001b[0m\n\u001b[1;32m 18\u001b[0m \u001b[0;32mbreak\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 19\u001b[0m \u001b[0;32melse\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 20\u001b[0;31m \u001b[0mn\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mn\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 21\u001b[0m \u001b[0;32mreturn\u001b[0m \u001b[0mcorazon_pascal\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mn\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 22\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
+ "\u001b[0;31mValueError\u001b[0m: invalid literal for int() with base 10: '3.'"
+ ]
}
],
"source": [
- "def triangulo_pascal(n):\n",
- " if type(n)is not int:\n",
- " print(\"El numero ingresado no es un numero entero\")\n",
- " else:\n",
- " return corazon_pascal(n)\n",
- " \n",
- " \n",
- " \n",
- "triangulo_pascal(2)"
+ "numero_usuario=input(\"\"\"\n",
+ "Introduzca un numero entero mayor que cero,\n",
+ "se retornará la fila n del triangulo de Pascal\n",
+ "\n",
+ "\"\"\")\n",
+ "print(\"\")\n",
+ "print(triangulo_pascal(numero_usuario))\n"
]
},
{
--
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