If u love science and PHY check this utube channel it's makes science and phy easy and interesting https://youtube.com/@mahesh_shenoy?si=3kd_uV6fyvcMKi9T

📢 Deadline Extended!

Due to the overwhelming number of requests, we’ve officially extended the A2SV G7 Education Application deadline to November 21.

This is your moment to learn, grow, and master world-class software engineering skills through one of Africa’s most rigorous and impactful education programs.

Join a program that builds a solid foundation for your tech career and opens doors to global opportunities at companies like Google, Bloomberg, Amazon, and Databricks. Don’t miss it! 🌍

👉 Apply now: https://form.typeform.com/to/xIK0MwKn
👉Spread the word! Share to a friend and help us reach more aspiring engineers.

የኮሪደር ሳር" በልተው የተያዙት አህዮች ጉዳይ!

እነዚህ ሁለት አህዮች ከአጥሩ ወጥተው፣ ብዙ ውዝግብ በሚያስነሳ ተግባር ላይ ተሰማርተው መገኘታቸው ተዘግቧል።

የክሱ ዝርዝር:
* ተከሳሾች: ሁለት አህያዎች ።
* የወንጀል ድርጊት:"የኮሪደር ሳር" (Corridor Grass) መብላት።

* የእስር ጊዜ: ከተያዙ በኋላ ለ30 ሰዓታት ያህል ታስረው እንደቆዩ ተሰምቷል።

የአካባቢው ነዋሪዎች እና ምስክሮች የአህዮቹ ታስሮ መቆየት ከመጠን በላይ እንደሆነ ቢገልጹም፣ አህዮቹ ግን በዝምታቸው እና በንፁህ ዓይናቸው የሚገባቸውን ፍርድ እየጠበቁ ነው።


ተጨማሪ ዝርዝር መረጃውን በዜና ቻናላችን ያግኙ - 433 World News

@Bisrat_Sport_433et @Bisrat_Sport_433et

በግ መስለዉ ወደ Spain ለመግባት ሲሞክሩ ድንበር ላይ የተያዙ ስደተኞች ናቸዉ

From LinkedIn

— UTTA 🍯

Join Ethiopia's premier competitive programming hackathon.

A full-day, on-site event dedicated to advanced problem-solving, data structures and algorithms.

Form a team of three and compete in divisions open to both advanced (Elite) and intermediate (Open) coders for national recognition and exciting prizes! 🏆

🗓 ቅዳሜ, ኅዳር 27 2018 (December 6, 2025)
⏰ 3፡00 - 11፡00 ሰአት (9:00 AM – 5:00 PM)
📍 CapStone ALX Tech Hub, Lideta
🔗 Register now: https://luma.com/9pobz8sd

#ALXEthiopia #CodeLeagueEthiopia #CompetitiveProgramming #DSA #dohardthings #ALXAfrica #lifeatALX

If your team is not yet full (less than 3 members), feel free to message me. @zprogramming_bot
I will help by connecting you with others who are also looking for teammates so you can form a complete team of 3.

Woow

All are last year A2sv interview questions for November intakes for G6

sorry for the minor error on the test cases , here is the updated

Question: Count Substrings with Same Start and End Character
Given a string s consisting only of lowercase English letters, your task is to find the number of substrings that start and end with the same character.

Examples:
Input: "abcba"
Output: 7
Explanation: The substrings are: "a", "b", "c", "b", "a", "bcb", and "aba".

Input: "abacada"
Output: 13
Explanation: The substrings are: "a", "b", "a", "c", "a", "d", "a", "aba", "aca", "ada", "abaca", "abada", and "abacad".

Input: "a"
Output: 1
Explanation: The only substring is "a".

Input: "zzzz"
Output: 10
Explanation: The substrings are: "z", "z", "z", "z", "zz", "zz", "zz", "zzz", "zzz", and "zzzz".


Challenge:
Write a function that takes a string as input and returns the total count of substrings that start and end with the same character.

Another Interview Question
▎Problem Statement

You are given a string s consisting only of the letters 'a' and 'b', and an integer k. You need to find the minimum number of character changes needed to obtain a substring of length ≥ k where all characters are the same.
Test Cases

Here are some test cases to illustrate the problem:

▎Test Case 1

• Input: s = "aabbaa", k = 3

• Output: 1

• Explanation: The substring "aaa" can be formed by changing one 'b' to 'a'.

▎Test Case 2

• Input: s = "ababab", k = 4

• Output: 2

• Explanation: To form "aaaa" or "bbbb", you need to change two characters (e.g., "aaab" or "bbba").

▎Test Case 3

• Input: s = "aaaaaa", k = 2

• Output: 0

Report on my Interview

Literally when I started my PC stacked🤯 and he was a peace guy he literally gave me 20 min after that I changed my PC with my friend and shared that.
1. After I shared my PC he introduced himself to me and also told me to share my screen asked me to go from tab desktop to check whether I shared my screen.
Also he asked me to show my ID in front of the screen.

2. He dropped the question it was

leetcode 1198 Premium question (https://github.com/doocs/leetcode/blob/main/solution/1100-1199/1198.Find%20Smallest%20Common%20Element%20in%20All%20Rows/README_EN.md)

3. I asked him to give me some time to understand the problem. When I saw the word strictly increasing I thought the question was Monotonic Stack but it wasn't.
4. After few silent minutes I think my adrelanine hormone just increased and the optimal one came to me but not the brute.
5. So I thought of a way to just sort the dictionary and make explain it as brute force. And literally it worked and asked me to Optimize it after I explained the time complexity. He also guided me on some other optimal related things like he told me to finish it inside the nested loop since it is strictly increasing matrix so I literally did that and explained as Optimal form and after I explained I implemented it quickly I started implementing while I was explaining the Brute one.
6. The technical was like that we finished it in 30min after that he gave 3 min and copy the code run and submit. He didn't told me whether it was accepted but I personally tested it on sharepad and it was correct for th given testcases.
7. After 5 min we started the Behavioural Interview he asked me 7 questions and agree on the policy the questions was literally same as the

G4 Interview Template

so I highly recommend to prepare on it.
8. After the interview I asked him about A2SV and other tech staff since he was Graduate student. And the interview entirely ended in 1:10 hr.