From f35ac737d5ef767ea690cf0ba18cecbb62253a0f Mon Sep 17 00:00:00 2001
From: Wunkifi <santiago.semprun@outlook.com>
Date: Fri, 9 May 2025 17:16:25 +0200
Subject: [PATCH] Lab solved by Santi Semprun

---
 lab-python-lambda-map-reduce-filter.ipynb | 108 +++++++++++++++++-----
 1 file changed, 85 insertions(+), 23 deletions(-)

diff --git a/lab-python-lambda-map-reduce-filter.ipynb b/lab-python-lambda-map-reduce-filter.ipynb
index 96c9781..cb40a08 100644
--- a/lab-python-lambda-map-reduce-filter.ipynb
+++ b/lab-python-lambda-map-reduce-filter.ipynb
@@ -66,7 +66,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "08463071-9351-4d49-8d29-4fcb817fb177",
    "metadata": {},
    "outputs": [],
@@ -94,12 +94,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "id": "0781335d-39cf-403d-b86a-ca908a09fe55",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[(-1200, 'debit'), (-100, 'debit'), (-250, 'debit'), (-300, 'debit'), (-850, 'debit')]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "credits = list(filter(lambda item: item[1] == 'debit', transactions))\n",
+    "print(credits)"
    ]
   },
   {
@@ -124,12 +133,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "id": "25073469-7258-4fc6-b0a0-ef8ea57688fe",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[(-1200, 'debit'), (-850, 'debit'), (-300, 'debit'), (-250, 'debit'), (-100, 'debit')]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "\n",
+    "\n",
+    "sorted_list = sorted(credits, key = lambda item:item[0])\n",
+    "print(sorted_list)\n"
    ]
   },
   {
@@ -158,7 +178,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 33,
    "id": "e1de9d03-f029-4e2e-9733-ae92e3de7527",
    "metadata": {},
    "outputs": [],
@@ -169,12 +189,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 34,
    "id": "2f253b7e-5300-4819-b38f-9fc090554f51",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[95.0, 47.5, -23.75, 950.0, -9.5]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "balances_after_rates = list(map(lambda x: x - x*0.05, balances))\n",
+    "print(balances_after_rates)"
    ]
   },
   {
@@ -195,7 +224,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 22,
    "id": "69e24c3b-385e-44d6-a8ed-705a3f58e696",
    "metadata": {},
    "outputs": [],
@@ -209,12 +238,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 26,
    "id": "0906a9b0-d567-4786-96f2-5755611b885e",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[980.0, 1980.0, 485.0]\n"
+     ]
+    }
+   ],
    "source": [
-    "# your code goes here\n"
+    "updated_accounts = list(map(lambda x: x['balance'] - x['balance']*x['interest_rate'], accounts ))\n",
+    "print(updated_accounts)"
    ]
   },
   {
@@ -243,14 +281,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 37,
    "id": "6284dbd3-e117-411e-8087-352be6deaed4",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "-33.25\n"
+     ]
+    }
+   ],
    "source": [
     "from functools import reduce\n",
     "\n",
-    "# your code goes here"
+    "negative_balances = list(filter(lambda x:x < 0, balances_after_rates))\n",
+    "sum_negative_balances = reduce(lambda x,y:x+y, negative_balances)\n",
+    "print(sum_negative_balances)"
    ]
   },
   {
@@ -273,10 +321,18 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 46,
    "id": "da2264b5-298e-4b45-99df-852b94e90d15",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[650, 1600, 275]\n"
+     ]
+    }
+   ],
    "source": [
     "accounts = [\n",
     "    {'balance': 1000, 'withdrawals': [100, 50, 200]},\n",
@@ -284,13 +340,19 @@
     "    {'balance': 500, 'withdrawals': [50, 100, 75]},\n",
     "]\n",
     "\n",
-    "# your code goes here\n"
+    "# your code goes here\n",
+    "def calculate_balance(accounts_list):\n",
+    "    for account in accounts_list:\n",
+    "        account['balance'] = sum(account['withdrawals'])\n",
+    "        print(account)\n",
+    "new_accounts = list(map(lambda account:account['balance']-sum(account['withdrawals']),accounts))\n",
+    "print(new_accounts)"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -304,7 +366,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,