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Solved lab #99

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16e638b
Solved lab
jonathansada May 11, 2025
fe10914
Fix Error in ex1
jonathansada May 11, 2025
3a423f7
Fix Error in ex1
jonathansada May 11, 2025
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125 changes: 103 additions & 22 deletions lab-python-lambda-map-reduce-filter.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 1,
"id": "08463071-9351-4d49-8d29-4fcb817fb177",
"metadata": {},
"outputs": [],
Expand Down Expand Up @@ -94,12 +94,23 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 63,
"id": "0781335d-39cf-403d-b86a-ca908a09fe55",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"[(2500, 'credit'), (850, 'credit'), (1500, 'credit'), (5000, 'credit'), (1000, 'credit')] [(-1200, 'debit'), (-100, 'debit'), (-250, 'debit'), (-300, 'debit'), (-850, 'debit')]\n"
]
}
],
"source": [
"# your code goes here"
"# your code goes here\n",
"credits = list(filter(lambda x: x[1] == 'credit', transactions))\n",
"debits = list(filter(lambda x: x[1] == 'debit', transactions))\n",
"print(credits, debits)"
]
},
{
Expand All @@ -124,12 +135,32 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 64,
"id": "25073469-7258-4fc6-b0a0-ef8ea57688fe",
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"[(-100, 'debit'),\n",
" (-250, 'debit'),\n",
" (-300, 'debit'),\n",
" (-850, 'debit'),\n",
" (-1200, 'debit')]"
]
},
"execution_count": 64,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# your code goes here"
"# your code goes here\n",
"sort_descending = lambda x, y: True if x[0] > y[0] else False \n",
"# I defined sort_descending as requested but it can't be used with sorted (as is defined) given that sorted only send 1 argument (the current elemet) to function 'key' and not two as expected in sort_descending.\n",
"debits_ex2 = sorted(debits, key=lambda x: x[0], reverse=True) \n",
"\n",
"debits_ex2"
]
},
{
Expand Down Expand Up @@ -158,7 +189,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 45,
"id": "e1de9d03-f029-4e2e-9733-ae92e3de7527",
"metadata": {},
"outputs": [],
Expand All @@ -169,12 +200,25 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 53,
"id": "2f253b7e-5300-4819-b38f-9fc090554f51",
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"[105.0, 52.5, -26.25, 1050.0, -10.5]"
]
},
"execution_count": 53,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# your code goes here"
"# your code goes here\n",
"balance_1y_ex1 = list(map(lambda x: x * 1.05, balances))\n",
"balance_1y_ex1"
]
},
{
Expand All @@ -195,7 +239,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 49,
"id": "69e24c3b-385e-44d6-a8ed-705a3f58e696",
"metadata": {},
"outputs": [],
Expand All @@ -209,12 +253,25 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 51,
"id": "0906a9b0-d567-4786-96f2-5755611b885e",
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"[1020.0, 2020.0, 515.0]"
]
},
"execution_count": 51,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# your code goes here\n"
"# your code goes here\n",
"balance_1y_ex2 = list(map(lambda x: x[\"balance\"] * (1+x[\"interest_rate\"]), accounts))\n",
"balance_1y_ex2"
]
},
{
Expand Down Expand Up @@ -246,11 +303,21 @@
"execution_count": null,
"id": "6284dbd3-e117-411e-8087-352be6deaed4",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"-36.75\n"
]
}
],
"source": [
"from functools import reduce\n",
"\n",
"# your code goes here"
"# your code goes here\n",
"negative_balances = list(filter(lambda x: x<0, balance_1y_ex1))\n",
"print(reduce(lambda x, y: x + y, negative_balances))\n"
]
},
{
Expand All @@ -273,24 +340,38 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 59,
"id": "da2264b5-298e-4b45-99df-852b94e90d15",
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"[650, 1600, 275]"
]
},
"execution_count": 59,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"accounts = [\n",
" {'balance': 1000, 'withdrawals': [100, 50, 200]},\n",
" {'balance': 2000, 'withdrawals': [300, 100]},\n",
" {'balance': 500, 'withdrawals': [50, 100, 75]},\n",
"]\n",
"\n",
"# your code goes here\n"
"# your code goes here\n",
"calculate_balance = lambda x: x[\"balance\"] - sum(x[\"withdrawals\"])\n",
"remaining_balance = list(map(calculate_balance, accounts))\n",
"remaining_balance"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -304,7 +385,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.11.12"
}
},
"nbformat": 4,
Expand Down