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jmportillajmportilla
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Merge pull request #5 from iShiBin/master
correct the description of the solution
2 parents f280f4b + 0182723 commit 69f950d

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‎.ipynb_checkpoints/Practice-checkpoint.ipynb

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 5,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'HELLO'"
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]
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},
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"execution_count": 5,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"s = 'hello'\n",
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"s.upper()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 8,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"hi\n"
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]
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}
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],
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"source": [
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"set1 = set()\n",
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"print('hi')"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"('hello',)"
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]
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},
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"execution_count": 6,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"import timeit\n",
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"timeit\n",
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"singleton = 'hello',\n",
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"singleton"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 8,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"<class 'set'>\n",
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"{'banana', 'apple', 'orange', 'pear'}\n"
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]
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}
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],
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"source": [
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"basket = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}\n",
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"print(type(basket))\n",
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"print(basket)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 15,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{' ', 't', 's', 'i', 'h', 'o', 'e', 'n', 'm', 'g'}\n"
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]
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}
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],
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"source": [
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"chars = {c for c in 'this is something'}\n",
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"print(chars)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 57,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 57,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"s = 'A man, a plan, a canal: Panama'\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 66,
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"metadata": {},
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"outputs": [
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{
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"ename": "SyntaxError",
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"evalue": "'return' outside function (<ipython-input-66-1b6f9701ea18>, line 7)",
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"output_type": "error",
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"traceback": [
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"\u001b[0;36m File \u001b[0;32m\"<ipython-input-66-1b6f9701ea18>\"\u001b[0;36m, line \u001b[0;32m7\u001b[0m\n\u001b[0;31m return False\u001b[0m\n\u001b[0m ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m 'return' outside function\n"
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]
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}
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],
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"source": [
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"s='ab'\n",
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"s=s.casefold()\n",
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"chars = list(filter(lambda c:c.isalpha(), s))\n",
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"low, high=0, len(chars)-1\n",
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"while(low<high):\n",
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" if chars[low] != chars[high]:\n",
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" return False\n",
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"return True"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 82,
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"metadata": {},
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"outputs": [],
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"source": [
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"s='ab'\n",
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"s = ''.join(filter(lambda c: c.isalnum(), s)).lower()\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.6.2"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎.ipynb_checkpoints/Reflect Notes-checkpoint.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Array\n",
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"- Python use reference when slide or extend an array. (Because python uses immutable value for integers and strings)\n",
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"## Dynamic Array Implementation\n",
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"- The array has an initial size and will expand twice when extending.\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"\" \".join()\n",
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"reversed()\n",
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"s.split()\n",
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"len(set(s))"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.6.2"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎.project

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Python-for-Algorithm-and-Interviews</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.python.pydev.PyDevBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.python.pydev.pythonNature</nature>
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</natures>
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</projectDescription>

‎.pydevproject

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<?eclipse-pydev version="1.0"?><pydev_project>
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<pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
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<pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python interpreter</pydev_property>
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</pydev_project>

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