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⌛️ Vaqt asimtotikasi: in code
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Hayolingda hisoblashni bas qil...
Bugun sizlarga ustozimdan matematika darsida o'rgangan judayam bir ajoyib fikr haqida aytib bermoqchiman. Bugun matematika darsida doskaga chiqdim va matritsalar bilan ishlayotgan edik. Determinant topilishi kerak bo'lgan vaziyat kelib qoldi va 3x3 matrix(aslida kattaroq edi bir qismi uchun 3x3) ni determinantini hayolan hisoblamoqchi bo'ldim va sal o'ylanib qoldim. Ustozim shu vaziyatda judayam bir ta'sirli gap aytdi:
"Javahere don't think that much. Your brain is not for calculating such small calculations. Your brain should solve bigger and much bigger problems in the life. You shouldn't deal with such small things. Just write what you need. And solve it. This is faster and simpler. Don't calculate in your mind. You should care about more serious problems in the world..."
Tarjimasi:
"Javohir ko'p o'ylama. Bu bizga berilgan bosh bunaqa kichik hisob-kitoblarni hayolan bajarish uchun emas. Sen bu hayotda kattadan katta muammolarni yechishing kerak. Bunday kichik amallar bilan miyyangni qotirma. Shunchaki nimani hisoblash kerak bo'lsa shuni yoz va hisobla. Manashu ish tezroq va soddaroq. Miyyangda hisoblashni bas qil. Sen senga berilgan bosh bilan hayotda jiddiy boshqa muammolarni yechishing kerak..."
To'g'risi juda ta'sir qildi. Rostdan ham shu misollarni boshimizda yechamiz deb miyyani qiynaymiz. Aslida bundan katta naf ham yo'q. Shunchaki yozing va hisoblang tamom. Bu bosh sizga ancha qiyinroq va jiddiyroq muammolarni hal qilish uchun berilgan. Uni oddiy va arzimas narsalar bilan band qilmang.
Shu ishni bugundan boshlang!
Bugun sizlarga ustozimdan matematika darsida o'rgangan judayam bir ajoyib fikr haqida aytib bermoqchiman. Bugun matematika darsida doskaga chiqdim va matritsalar bilan ishlayotgan edik. Determinant topilishi kerak bo'lgan vaziyat kelib qoldi va 3x3 matrix(aslida kattaroq edi bir qismi uchun 3x3) ni determinantini hayolan hisoblamoqchi bo'ldim va sal o'ylanib qoldim. Ustozim shu vaziyatda judayam bir ta'sirli gap aytdi:
"Javahere don't think that much. Your brain is not for calculating such small calculations. Your brain should solve bigger and much bigger problems in the life. You shouldn't deal with such small things. Just write what you need. And solve it. This is faster and simpler. Don't calculate in your mind. You should care about more serious problems in the world..."
Tarjimasi:
"Javohir ko'p o'ylama. Bu bizga berilgan bosh bunaqa kichik hisob-kitoblarni hayolan bajarish uchun emas. Sen bu hayotda kattadan katta muammolarni yechishing kerak. Bunday kichik amallar bilan miyyangni qotirma. Shunchaki nimani hisoblash kerak bo'lsa shuni yoz va hisobla. Manashu ish tezroq va soddaroq. Miyyangda hisoblashni bas qil. Sen senga berilgan bosh bilan hayotda jiddiy boshqa muammolarni yechishing kerak..."
To'g'risi juda ta'sir qildi. Rostdan ham shu misollarni boshimizda yechamiz deb miyyani qiynaymiz. Aslida bundan katta naf ham yo'q. Shunchaki yozing va hisoblang tamom. Bu bosh sizga ancha qiyinroq va jiddiyroq muammolarni hal qilish uchun berilgan. Uni oddiy va arzimas narsalar bilan band qilmang.
Shu ishni bugundan boshlang!
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Kun masalasi: 319. Bulb Switcher
Qiyinlik darajasi: O'rta
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
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LeetCode
Bulb Switcher - LeetCode
Can you solve this real interview question? Bulb Switcher - There are n bulbs that are initially off. You first turn on all the bulbs, then you turn off every second bulb.
On the third round, you toggle every third bulb (turning on if it's off or turning…
On the third round, you toggle every third bulb (turning on if it's off or turning…
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⌛️ Vaqt asimtotikasi: O(Sqrt(N))
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Kun masalasi: 839. Similar String Groups
Qiyinlik darajasi: Qiyin
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
😎😎😎
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Similar String Groups - LeetCode
Can you solve this real interview question? Similar String Groups - Two strings, X and Y, are considered similar if either they are identical or we can make them equivalent by swapping at most two letters (in distinct positions) within the string X.
For…
For…
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⌛️ Vaqt asimtotikasi: O(N² · M)
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E’tibor bergan bo’lsangiz kerak. Ohirgi masalalarni yechimlari Kotlin dasturlash tilida ishlanmoqda. Bu esa 2 ta dars ya’ni:
1. Qoldiqlar bilan ishlash
2. DSU
dan keyin Kotlin dasturlash tilini o’rganishni boshlab, android sohasiga ham qadam qo’ymoqchi ekanligimizni anglatadi.
Qilinishi kerak bo’lgan ishlar shunchalar vodiy bo’lib ketgandek. Bularni qanday “manage efficiently” qilinarkan deb hayron qolaman. Kimdur shu borada biror kitob yoki maqola o’qigan bo’lsa commentda ulashsa ko’pchilikka foydali bo’lar edi deb o’ylayman.
1. Qoldiqlar bilan ishlash
2. DSU
dan keyin Kotlin dasturlash tilini o’rganishni boshlab, android sohasiga ham qadam qo’ymoqchi ekanligimizni anglatadi.
Qilinishi kerak bo’lgan ishlar shunchalar vodiy bo’lib ketgandek. Bularni qanday “manage efficiently” qilinarkan deb hayron qolaman. Kimdur shu borada biror kitob yoki maqola o’qigan bo’lsa commentda ulashsa ko’pchilikka foydali bo’lar edi deb o’ylayman.
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Kun masalasi: 1697. Checking Existence of Edge Length Limited Paths
Qiyinlik darajasi: Qiyin
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
😎😎😎
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LeetCode
Checking Existence of Edge Length Limited Paths - LeetCode
Can you solve this real interview question? Checking Existence of Edge Length Limited Paths - An undirected graph of n nodes is defined by edgeList, where edgeList[i] = [ui, vi, disi] denotes an edge between nodes ui and vi with distance disi. Note that there…
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⌛️ Vaqt asimtotikasi:
N -> node sizeO(M · Log(M) + K · Log(K))
M -> edgeList size
K -> queries size
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Kun masalasi: 1579. Remove Max Number of Edges to Keep Graph Fully Traversable
Qiyinlik darajasi: Qiyin
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
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Remove Max Number of Edges to Keep Graph Fully Traversable - LeetCode
Can you solve this real interview question? Remove Max Number of Edges to Keep Graph Fully Traversable - Alice and Bob have an undirected graph of n nodes and three types of edges:
* Type 1: Can be traversed by Alice only.
* Type 2: Can be traversed by…
* Type 1: Can be traversed by Alice only.
* Type 2: Can be traversed by…
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⌛️ Vaqt asimtotikasi: O(N)
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Shu masalani yechish uchun yozgan birinchi kodim 😮💨
Keyin optimizatsiya qildim
Keyin optimizatsiya qildim
Bir necha kunlardan beri leetcode.com masalalari DSU haqida bo'layotgani uchun qoldiqlar darsidan oldin shu DSU haqida gaplashish kerak degan qarorga keldim va sizlar uchun DSU darsligini chiqardim. Umid qilamanki barchaga tushunarli bo'ladi. Hammangizga bu bilimlarni o'zbek tilida o'rganishingizda omad.
Demak bugungi mavzu: DSU
Shiorimiz: Ertaga, Dushanbadan, Yanagi yildan, 18 kirsangiz emas, Bugundan boshlang.
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Demak bugungi mavzu: DSU
Shiorimiz: Ertaga, Dushanbadan, Yanagi yildan, 18 kirsangiz emas, Bugundan boshlang.
Bizni kuzatishda davom eting
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YouTube
DSU | Disjoint Set Union | Union find
Bugun "Union find" mavzusi haqida o'rganamiz
Shiorimiz: Ertaga, Dushanbadan, Yanagi yildan, 18 kirsangiz emas, Bugundan boshlang.
Dastur kodini quyidagi linkdan olishingiz mumkin:
https://github.com/javokhirakramjonov/Algorithm-Codes/blob/main/DSU.java…
Shiorimiz: Ertaga, Dushanbadan, Yanagi yildan, 18 kirsangiz emas, Bugundan boshlang.
Dastur kodini quyidagi linkdan olishingiz mumkin:
https://github.com/javokhirakramjonov/Algorithm-Codes/blob/main/DSU.java…
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JavaHere's Blogs 🚀 pinned «Bir necha kunlardan beri leetcode.com masalalari DSU haqida bo'layotgani uchun qoldiqlar darsidan oldin shu DSU haqida gaplashish kerak degan qarorga keldim va sizlar uchun DSU darsligini chiqardim. Umid qilamanki barchaga tushunarli bo'ladi. Hammangizga bu…»
Kun masalasi: 1491. Average Salary Excluding the Minimum and Maximum Salary
Qiyinlik darajasi: Oson
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
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Average Salary Excluding the Minimum and Maximum Salary - LeetCode
Can you solve this real interview question? Average Salary Excluding the Minimum and Maximum Salary - You are given an array of unique integers salary where salary[i] is the salary of the ith employee.
Return the average salary of employees excluding the…
Return the average salary of employees excluding the…
Kun masalasi: 649. Dota2 Senate
Qiyinlik darajasi: O'rta
Sizda bu masalani yechish uchun qanday fikr bor? Agar biror idea bo'lsa kommentda qoldiring. Masala yechim topishi uchun sizning ideangiz yordam berishi mumkin...
😎😎😎
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LeetCode
Dota2 Senate - LeetCode
Can you solve this real interview question? Dota2 Senate - In the world of Dota2, there are two parties: the Radiant and the Dire.
The Dota2 senate consists of senators coming from two parties. Now the Senate wants to decide on a change in the Dota2 game.…
The Dota2 senate consists of senators coming from two parties. Now the Senate wants to decide on a change in the Dota2 game.…
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Anchadan beri bunchalik asabim buzilmagan edi lekin. Rosa vaqtni oladigan masala bo'ldi. Menimcha Dota2 degan o'yinni qanday qilib boshlashni ham bilmaganim uchun bo'ldi 😆. Ohiri chiqdi. Yechib ko'rishni maslahat beraman. Yechimni esa 2 soatdan keyin yuboraman
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