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ericntunctu

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    黎曼猜想 What is Riemann hypothesis (15) Zeta function 在0點的微分，無限大階乘
    10:40

    黎曼猜想 What is Riemann hypothesis (15) Zeta function 在0點的微分，無限大階乘

     3  views
    Leetcode 213 House Robber II
    5:42

    Leetcode 213 House Robber II

     3  views
    Leetcode solving 5 Longest Palindromic Substring
    3:14

    Leetcode solving 5 Longest Palindromic Substring

    Leetcode 96 Unique Binary Search Trees
    3:20

    Leetcode 96 Unique Binary Search Trees

     2  views
    Cardano’s formula: Cubic equation
    17:45

    Cardano’s formula: Cubic equation

     3  views
    leetcode 2042 Check if Numbers Are Ascending in a Sentence
    2:20

    leetcode 2042 Check if Numbers Are Ascending in a Sentence

     1  view
    136 Single Number
    3:00

    136 Single Number

     2  views
    Leetcode 198 House Robber
    7:40

    Leetcode 198 House Robber

     1  view
    Leetcode solving 28 Implement strStr
    1:46

    Leetcode solving 28 Implement strStr

     2  views
    Leetcode solving 1305 All Elements in Two Binary Search Trees
    3:23

    Leetcode solving 1305 All Elements in Two Binary Search Trees

     2  views
    2047 Number of Valid Words in a Sentence
    5:01

    2047 Number of Valid Words in a Sentence

     5  views
    Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b
    9:16

    Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b

    Simple proof that equilateral triangles have maximum area
    6:33

    Simple proof that equilateral triangles have maximum area

     2  views
    finite abelian group2, isomorphic iff same invariance
    17:23

    finite abelian group2, isomorphic iff same invariance

     13  views
    Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3
    7:50

    Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3

     27  views
    Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988
    11:17

    Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988

     1  view
    Leetcode 2079 Watering Plants
    3:18

    Leetcode 2079 Watering Plants

     6  views
    classification of finite abelian group is a direct product of cyclic groups
    28:54

    classification of finite abelian group is a direct product of cyclic groups

     5  views
    Leetcode 2080 Range Frequency Queries both 100%
    4:18

    Leetcode 2080 Range Frequency Queries both 100%

     1  view
    Leetcode 2078 Two Furthest Houses With Different Colors
    2:33

    Leetcode 2078 Two Furthest Houses With Different Colors

     1  view
    Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2
    5:21

    Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2

     4  views
    Prove Method of infinite Descent : square k is irrational if k is not square free
    10:10

    Prove Method of infinite Descent : square k is irrational if k is not square free

     4  views
    Leetcode 290 Word Pattern
    5:31

    Leetcode 290 Word Pattern

     2  views
    Inner direct product and external direct product and there are isomorphism
    16:57

    Inner direct product and external direct product and there are isomorphism

     2  views
    Prove Method of infinite Descent : square 2 is irrational
    4:51

    Prove Method of infinite Descent : square 2 is irrational

     4  views
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