IT |
気になる、記になる… |
AndMesh、2点以上同時購入で10%オフになる新生活応援キャンペーンを開催中(3月24日まで) |
https://taisy0.com/2022/03/19/154922.html
|
andmesh |
2022-03-19 01:29:24 |
IT |
気になる、記になる… |
Microsoft、「Windows 11 Insider Preview Build 22579」のISOファイルを公開 |
https://taisy0.com/2022/03/19/154920.html
|
insiderpreviewbuild |
2022-03-19 01:21:15 |
IT |
気になる、記になる… |
「Windows 11 Insider Preview Build 22579」がDevチャネル向けにリリース |
https://taisy0.com/2022/03/19/154918.html
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build |
2022-03-19 01:18:33 |
TECH |
Engadget Japanese |
没入型の屋内サイクリング体験。ブラシレスモーターで坂道もシミュレートするスマートサイクルトレーナー「T2」 |
https://japanese.engadget.com/smart-bicycle-trainer-012521872.html
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|
2022-03-19 01:25:21 |
python |
Pythonタグが付けられた新着投稿 - Qiita |
NamedTemporaryFileにおけるアップロード時のclosed file関連のバグ |
https://qiita.com/yuta3984/items/230365cb241b56b60b70
|
NamedTemporaryFileにおけるアップロード時のclosedfile関連のバグ本記事で扱っている内容はNamedTemporaryFileのバグです。 |
2022-03-19 10:09:04 |
js |
JavaScriptタグが付けられた新着投稿 - Qiita |
firebase firestoreに日付データを登録する方法 |
https://qiita.com/app_js/items/81acefd209657d206edd
|
firebasefirestoreに日付データを登録する方法constnowDateDatenowこれだとミリ秒で表示されてしまうため、フォーマットを変更しますライブラリをインストールしますnpminstalldatefnsltscriptgtimportformatfromdatefnsmethodssubmitPostasyncfunctionconstdbgetFirestoreconstnowDateDatenowconstmyShapedformatnowDateyyyyMMddHHmmssconstdocRefawaitaddDoccollectiondbsamplecommentTimemyShapedconsolelogdocrefiddocRefidltscriptgtもし日付で並べ替えたい時はnowDateも設定しておきます。 |
2022-03-19 10:58:36 |
golang |
Goタグが付けられた新着投稿 - Qiita |
compile: version "go *.**" does not match go tool version "go *.**"エラーの解決 |
https://qiita.com/yanagida-dev/items/7e0c06a58f6b76a5fb71
|
compileversionquotgoquotdoesnotmatchgotoolversionquotgoquotエラーの解決compileversiongodoesnotmatchgotoolversiongoエラーgoの環境構築していてhelloworldさせるために、はりきってgorunhellogoをしたら上記のエラーがでた。 |
2022-03-19 10:10:28 |
海外TECH |
DEV Community |
Day 31 of Studying LeetCode until I Can Solve One on My Own: #1481. Least Number of Unique Integers after K Removals(M/JS) |
https://dev.to/killingleetcode/day-31-of-studying-leetcode-until-i-can-solve-one-on-my-own-1481-least-number-of-unique-integers-after-k-removalsmjs-ae6
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Day of Studying LeetCode until I Can Solve One on My Own Least Number of Unique Integers after K Removals M JS Intro I am a former accountant turned software engineer graduated from coding bootcamp Algorithms and Data Structure is an unavoidable part of interviews for most of the tech companies now And one of my friends told me that you need to solve a medium leetcode problem under seconds in order to get into the top tech companies So I thought I d start learning how to do it while job searching Since I have no clue on how to solve any of the problems even the easy ones I thought there is no point for me to waste hours and can t get it figured out Here is my approach Pick a leetcode problem randomly or Online Assessment from targeted companies Study solutions from Youtube or LeetCode discussion section One brute force solution another one more optimal Write a blog post with detailed explanation and do a verbal walk through to help understand the solutions better Code out the solution in LeetCode without looking at the solutionsCombat the forgetting curve Re do the question for the next three days And come back regularly to revisit the problem Least Number of Unique Integers after K RemovalsDifficulty Medium Language JavaScript Given an array of integers arr and an integer k Find the least number of unique integers after removing exactly k elements Example Input arr k Output Explanation Remove the single only is left Example Input arr k Output Explanation Remove and either one of the two s or three s and will be left Constraints lt arr length lt lt arr i lt lt k lt arr lengthSolution Use a map to count the frequencies of the numbers in the array Remove the numbers with the smallest count first var findLeastNumOfUniqueInts function arr k let frequency uiqueInt Initial a map to count the frequencies of the numbers in the array Also initial uniqueInt to keep count of unique integers for let i i lt arr length i Loop note through each interger in the array if frequency arr i If the ith element in the array does NOT exsit in the map frequency arr i initial the count for the ith element in the map uiqueInt When new element is added in the map increate the count of the unique element frequency arr i If the ith element exists in the map increase the frequency of that element let sortedFreq Object entries frequency sort a b gt return a b sort the frequency map created from steps above in ascending order for let i i lt sortedFreq length i Loop through the sorted frequency map if k gt sortedFreq i If k is greater or equal to the frequency of the element k k sortedFreq i Subtract the frequency of that element from k That means we made k moves to remove all of that element entirely uiqueInt Once removed reduce the count for unique interger else break if update k is less than frequency than any of the remainding element break out of the loop That means the element will still exist in the array even if we make k moves return uiqueInt Return the number of unique interger s Time Complexity O nlogn Space Complexity O n References LeetCode Problem LinkLeetCode Discussion SuyashNote for loopBlog Cover Image Credit |
2022-03-19 01:43:11 |
海外科学 |
NYT > Science |
Russian Astronauts Board ISS in Colors Similar to Ukraine Flag |
https://www.nytimes.com/2022/03/18/science/russian-astronauts-yellow-blue-flight-suits-ukraine.html
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ukrainian |
2022-03-19 01:24:13 |
海外科学 |
BBC News - Science & Environment |
Drinking water 'forever chemical' level set too high, say scientists |
https://www.bbc.co.uk/news/science-environment-60761972?at_medium=RSS&at_campaign=KARANGA
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chemical |
2022-03-19 01:00:38 |
ニュース |
@日本経済新聞 電子版 |
目薬や頭痛薬「プレミアム」増殖 価格は定番品の2倍も
https://t.co/LT7ecyzmry |
https://twitter.com/nikkei/statuses/1504987952472289280
|
頭痛薬 |
2022-03-19 01:07:43 |
ニュース |
@日本経済新聞 電子版 |
昼間は75秒・夜は45秒…青信号の長さ、昼夜で違うの?
https://t.co/INS3PslA5b |
https://twitter.com/nikkei/statuses/1504987951444672514
|
青信号 |
2022-03-19 01:07:43 |
ニュース |
@日本経済新聞 電子版 |
春を感じるチューリップの名所へ 富山に長崎、北海道…
https://t.co/YufQtFYMCN |
https://twitter.com/nikkei/statuses/1504986666217635840
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長崎 |
2022-03-19 01:02:37 |
海外ニュース |
Japan Times latest articles |
A ‘killing stone’ broke in Japan. Is a demon on the loose? |
https://www.japantimes.co.jp/news/2022/03/19/national/japan-killing-stone/
|
famous |
2022-03-19 10:32:31 |
海外ニュース |
Japan Times latest articles |
Kishida to attend G7 summit in Brussels as world powers discuss Ukraine crisis |
https://www.japantimes.co.jp/news/2022/03/19/national/politics-diplomacy/kishida-g7-japan-ukraine/
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Kishida to attend G summit in Brussels as world powers discuss Ukraine crisisG leaders are expected to discuss additional sanctions and other measures against Russia and Belarus while exchanging views on how to stabilize the energy market |
2022-03-19 10:19:35 |
海外ニュース |
Japan Times latest articles |
Kishida heads to India for talks with Modi focusing on Ukraine |
https://www.japantimes.co.jp/news/2022/03/19/national/politics-diplomacy/kishida-india-narendra-modi/
|
Kishida heads to India for talks with Modi focusing on UkrainePrime Minister Fumio Kishida will be eyeing a stronger response from his Indian counterpart Narendra Modi to Moscow s invasion of Ukraine |
2022-03-19 10:13:05 |
ビジネス |
ダイヤモンド・オンライン - 新着記事 |
中国が「ゼロコロナ」調整に着手、習氏自ら音頭 - WSJ発 |
https://diamond.jp/articles/-/299672
|
音頭 |
2022-03-19 10:14:00 |
北海道 |
北海道新聞 |
三笘、後半開始から出場 ベルギー1部リーグ |
https://www.hokkaido-np.co.jp/article/658843/
|
町田浩樹 |
2022-03-19 10:15:46 |
北海道 |
北海道新聞 |
道内太平洋側で荒天 新千歳21便欠航 日高に暴風雪警報 |
https://www.hokkaido-np.co.jp/article/658874/
|
太平洋側 |
2022-03-19 10:24:00 |
北海道 |
北海道新聞 |
ニースミスが首位浮上 米男子ゴルフ第2日 |
https://www.hokkaido-np.co.jp/article/658875/
|
男子ゴルフ |
2022-03-19 10:25:00 |
北海道 |
北海道新聞 |
<フォーカス>観光需要回復に期待 長期休暇へてこ入れ まん延防止解除 |
https://www.hokkaido-np.co.jp/article/658852/
|
新型コロナウイルス |
2022-03-19 10:24:08 |
北海道 |
北海道新聞 |
【道スポ】宇佐見 マルチ&盗塁2度阻止 日本ハム |
https://www.hokkaido-np.co.jp/article/658872/
|
日本ハム |
2022-03-19 10:15:00 |
北海道 |
北海道新聞 |
核禁止会議、6月に開催 危機回避、廃絶目指す |
https://www.hokkaido-np.co.jp/article/658867/
|
感染拡大 |
2022-03-19 10:09:00 |
北海道 |
北海道新聞 |
札幌感染750人前後 新型コロナ |
https://www.hokkaido-np.co.jp/article/658849/
|
新型コロナウイルス |
2022-03-19 10:02:05 |
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