Coding Interview Resources
This channel contains the free resources and solution of coding problems which are usually asked in the interviews. Managed by: @love_data
Show more📈 Analytical overview of Telegram channel Coding Interview Resources
Channel Coding Interview Resources (@crackingthecodinginterview) in the English language segment is an active participant. Currently, the community unites 52 236 subscribers, ranking 2 494 in the Technologies & Applications category and 6 880 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 52 236 subscribers.
According to the latest data from 26 August, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 31 over the last 30 days and by -3 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 1.85%. Within the first 24 hours after publication, content typically collects 0.76% reactions from the total number of subscribers.
- Post reach: On average, each post receives 966 views. Within the first day, a publication typically gains 398 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 2.
- Thematic interests: Content is focused on key topics such as array, stack, algorithm, programming, sort.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“This channel contains the free resources and solution of coding problems which are usually asked in the interviews.
Managed by: @love_data”
Thanks to the high frequency of updates (latest data received on 27 August, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
Dear [Recruiter’s Name],
I hope this email finds you doing well. I wanted to take a moment to express my sincere gratitude for the time and consideration you have given me throughout the recruitment process for the [position] role at [company].
I understand that you must be extremely busy and receive countless applications, so I wanted to reach out and follow up on the status of my application. If it’s not too much trouble, could you kindly provide me with any updates or feedback you may have?
I want to assure you that I remain genuinely interested in the opportunity to join the team at [company] and I would be honored to discuss my qualifications further. If there are any additional materials or information you require from me, please don’t hesitate to let me know.
Thank you for your time and consideration. I appreciate the effort you put into recruiting and look forward to hearing from you soon.
Warmest regards,
(Tap to copy)SELECT COUNT(*) FROM employees;
2️⃣ SUM()
Adds up values in a column.
SELECT dept_id, SUM(salary)
FROM employees
GROUP BY dept_id;
3️⃣ AVG()
Returns the average of values.
SELECT AVG(salary) FROM employees;
4️⃣ MAX() / MIN()
Returns the highest/lowest value.
SELECT MAX(salary), MIN(salary) FROM employees;
5️⃣ GROUP BY
Groups rows that have the same values in specified columns.
SELECT dept_id, COUNT(*)
FROM employees
GROUP BY dept_id;
6️⃣ HAVING
Filters groups after aggregation (unlike WHERE which filters rows).
SELECT dept_id, AVG(salary)
FROM employees
GROUP BY dept_id
HAVING AVG(salary) > 50000;
————————
Real-World Interview Questions + Answers
Q1: What’s the difference between WHERE and HAVING?
A: WHERE filters rows before grouping. HAVING filters after aggregation.
Q2: Can you use aggregate functions without GROUP BY?
A: Yes. Without GROUP BY, the function applies to the entire table.
Q3: How do you find departments with more than 5 employees?
SELECT dept_id, COUNT(*)
FROM employees
GROUP BY dept_id
HAVING COUNT(*) > 5;
Q4: Can you group by multiple columns?
A: Yes.
GROUP BY dept_id, job_title
Q5: How do you calculate total and average salary per department?
SELECT dept_id, SUM(salary), AVG(salary)
FROM employees
GROUP BY dept_id;
💬 Tap ❤️ for more!