Top Tweets for #ModularArithmetic
https://t.co/Gk1xvsbeXn
📅 Χωρίς ημερολόγιο:
Ποια ημέρα ήταν η 28η Σεπτεμβρίου 2020;
Ο Lewis Carroll είχε βρει ήδη από το 1887 έναν τρόπο να το υπολογίζει νοερά σε περίπου 20 δευτερόλεπτα.
Το μυστικό;
Αριθμητική modulo 7.
#math #modulararithmetic #LewisCarroll
#eisatopon-->
Consecutive averages of sequence always integer squares
#Quadratics #USAJMO #USAMO #Induction #ModularArithmetic #NumberTheoryProposed #QuadraticResidues
(2^n + 1)/n^2 is an integer (IMO 1990 Problem 3)
#ModularArithmetic #NumberTheory #Divisibility #IMO1990 #OrdersAndLTE #P3
Problem of the Day!
A little 2026 number theory and modular arithmetic today.
#POTD #Math #NumberTheory #ModularArithmetic
🚀 #Day 214/100 – Count Subsequences Divisible by n(@GeeksforGeeks)
💡 Key: DP over remainders. New remainder = (r × 10 + d) % n. No need to store huge numbers!
✅ O(|s| × n) | O(n)
#100DaysOfCode #DSA #DP #ModularArithmetic #Strings #DAY214
Why Do These Random Lines Suddenly Become Perfect Geometry? 🔢✨
#modulararithmetic #geometry #mathart
Problem of the Day!
Here's a modular arithmetic problem for y'all.
#POTD #Math #ModularArithmetic #NumberTheory #CRT
Problem of the Day!
Here's a modular arithmetic problem for y'all.
#POTD #Math #ModularArithmetic #NumberTheory #CRT
#ModularArithmetic For everyone—🤓
🚀 #Day 163/100 (Count Pairs with Sum Divisible by K @GeeksforGeeks – #Daily)!
Key: Remainder frequencies: count += freq[(k - rem) % k].
✓ O(n) | O(k)
✓ Accepted
@CoderArmy #100DaysOfCode #DSA #ModularArithmetic #DSA26 #DAY163
![PankajB42550's tweet photo. 🚀 #Day 163/100 (Count Pairs with Sum Divisible by K @GeeksforGeeks – #Daily)!
Key: Remainder frequencies: count += freq[(k - rem) % k].
✓ O(n) | O(k)
✓ Accepted
@CoderArmy #100DaysOfCode #DSA #ModularArithmetic #DSA26 #DAY163 https://t.co/vGzT4nYFl3](https://pbs.twimg.com/media/HMw_zmHakAAMN77.jpg)
![PankajB42550's tweet photo. 🚀 #Day 163/100 (Count Pairs with Sum Divisible by K @GeeksforGeeks – #Daily)!
Key: Remainder frequencies: count += freq[(k - rem) % k].
✓ O(n) | O(k)
✓ Accepted
@CoderArmy #100DaysOfCode #DSA #ModularArithmetic #DSA26 #DAY163 https://t.co/vGzT4nYFl3](https://pbs.twimg.com/media/HMw_zl5bkAA05Ip.jpg)
![PankajB42550's tweet photo. 🚀 #Day 163/100 (Count Pairs with Sum Divisible by K @GeeksforGeeks – #Daily)!
Key: Remainder frequencies: count += freq[(k - rem) % k].
✓ O(n) | O(k)
✓ Accepted
@CoderArmy #100DaysOfCode #DSA #ModularArithmetic #DSA26 #DAY163 https://t.co/vGzT4nYFl3](https://pbs.twimg.com/media/HMw_zl1aAAAUlYj.jpg)
f(x) = ax^2 + bx + c is a perfect square for 2p - 1 integers
#ModularArithmetic #NumberTheory #Quadratics #PerfectSquare #Discriminant #IMOShortlist
Permutation of 1,2,...,n and complete residue system
#ModularArithmetic #NumberTheoryProposed #NumberTheory
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