test

Problem_1.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Task: Add all the natural numbers below one thousand that are multiples of 3 or 5."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "source": [
    "int Problem1_ForLoop(int size) {\n",
    "    int sum = 0;\n",
    "    for (int i = 0; i < size; i++)\n",
    "    {\n",
    "        if (i % 3 == 0 || i % 5 == 0)\n",
    "        {\n",
    "            sum += i;\n",
    "        }\n",
    "    }\n",
    "    return sum;\n",
    "}\n",
    "Problem1_ForLoop(1000)"
   ],
   "outputs": [
    {
     "output_type": "execute_result",
     "data": {
      "text/html": "<div class=\"dni-plaintext\">233168</div>"
     },
     "execution_count": 1,
     "metadata": {}
    }
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "source": [
    "int Problem1_LinqSum(int size) => Enumerable.Range(1, size).Where(o => o % 3 == 0 || o % 5 == 0).Sum();\n",
    "Problem1_LinqSum(1000)"
   ],
   "outputs": [
    {
     "output_type": "execute_result",
     "data": {
      "text/html": "<div class=\"dni-plaintext\">234168</div>"
     },
     "execution_count": 1,
     "metadata": {}
    }
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "source": [
    "int Problem1_LinqAccumulator(int size) => Enumerable.Range(1, size)\n",
    "    .Aggregate(0, (total, nr) => nr % 3 == 0 || nr % 5 == 0 ? total + nr : total);\n",
    "Problem1_LinqAccumulator(1000)"
   ],
   "outputs": [
    {
     "output_type": "execute_result",
     "data": {
      "text/html": "<div class=\"dni-plaintext\">234168</div>"
     },
     "execution_count": 1,
     "metadata": {}
    }
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "source": [
    "int ArithmeticProgression(int nr) => nr * (nr + 1) / 2;\n",
    "int ArithmeticProgressionMultiple(int nr, int multiple) => \n",
    "    multiple * nr * (nr + 1) / 2;\n",
    "int Problem1_ArithmeticProgression(int size) =>  \n",
    "    ArithmeticProgressionMultiple(size/3, 3) \n",
    "    + ArithmeticProgressionMultiple(size/5, 5)  \n",
    "    - ArithmeticProgressionMultiple(size/15, 15);\n",
    "Problem1_ArithmeticProgression(1000)"
   ],
   "outputs": [
    {
     "output_type": "execute_result",
     "data": {
      "text/html": "<div class=\"dni-plaintext\">234168</div>"
     },
     "execution_count": 1,
     "metadata": {}
    }
   ]
  }
 ],
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