Senior software engineer

Software Developer

Share your favourite puzzle or mystery question, we'll try to solve it (in comments)

Share your favourite puzzle or mystery question, we'll try to solve it (in comments)- Grapevine

Welcome to Software Engineers's Private Community

find the solution and post it here (I already found the answers)

[Puzzle] you know it's gonna be fun working with them, when they give technical puzzles as part of job application itself

Anyone remember how this puzzle was solved?

Consultant

Can anyone help in providing any resources and tips in solving maths puzzle. This is where I struggle... I am good everywhere else but i want perfect this part as well... Please help folks!

Maths Puzzles Help!

Product Manager

Puzzles we created ourselves :D

for me it's "Monument Valley"

It's beautifully designed, nice relaxing music & quite interesting story!

Share your favorite puzzle mobile/desktop games

I was recently called for an interview, and the interviewer asked me a puzzle. It goes something like this:

"You have two containers, C1 and C2, both filled with equal volumes of oil and water, respectively (i.e., C1 -> oil volume V and C2 -> water volume V). A spoonful of liquid is taken from C1 and poured into C2, then a spoonful of liquid is taken from C2 and poured into C1. After these two steps take place, which container will have higher purity (concentration of oil for C1 and that of water for C2)?"

I thought for a while and answered C1, citing that since we put pure oil from C1 into C2 but a mix from C2 into C1, certainly some oil from C2 is back in C1, thereby achieving more purity. The interviewer said it was wrong and asked me to try again. This time, I did some actual math and was told C2 would have a greater concentration based on the calculations. The interviewer again tagged me wrong, so I asked the interviewer to explain, and his answer was that both would be equal since you take 1 spoon of oil from C1 to C2, and put 1 spoon of water from C2 to C1. This is obviously flawed, as no oil is getting back on the spoon when you dip it into C2. I wanted to point that out but didn't. Later, I re-did my math thoroughly and found that C2 would have a greater purity of water.

Stupid question asked in interview.

Software Engineer

Welcome to Business Roles's Private Community

What are a few common logical reasoning and puzzle questions that interviewers ask for non-tech roles? My interviewer is someone from analytics. So, if any analytics folks can drop some gyaan on what questions I can expect, that'd be great!

Logical reasoning and puzzle questions

Talent acquisition

I will continue with this series for people who like this kind of content, drop "+1" in the chat and I will tag you the next time I post content.

Today, I was in the mood to go through some old CS problems I had solved a few years back.

The problem is described in cses.fi [ https://cses.fi/problemset/task/1193 ] and is as follows:

You are given a map of a labyrinth, and your task is to find a path from start to end. You can walk left, right, up and down.

𝗜𝗻𝗽𝘂𝘁𝘀:
You are given n and m: the height and width of the map.
Then there are n lines of m characters describing the labyrinth. Each character is . (floor), # (wall), A (start), or B (end). There is exactly one A and one B in the input.

𝗢𝘂𝘁𝗽𝘂𝘁:
Revert with "YES" if a path is possible.
Revert with "NO" if no path is possible.
If "YES" also mention the path taken to reach B from A as L(left), R (right), U (up), and D (down).

How do you solve a problem like this?

Solution Approach:
You traverse through the input and figure out where A and B lie within the input as (i,j) coordinates.
Then, we do something called flood fill approach, where we start at A and then we update moves with BFS until we reach B. (L/D/R/U)

Now, what we need to check next is whether it violates some assumptions. 
1. Check each adjacent cell and it is not supposed to be a wall(#)
2. Adjacent cell should not be out of bounds, for example cells on the boundary cannot go outside the labyrinth.
3. Lastly we need to track that we have not already visited that cell before. 

If none of these cases are violated then we proceed to move in that direction. Then we apply BFS again and check for violation of these cases. All the while we maintain whether we visited that cell before and the path we have taken from A. 

We stop when we reach B's location. Now what happens if we don't reach B?
Since, we are applying BFS we will end up reaching all cells except B. We would have completed entire traversal of the labyrinth yet no B in sight.

Daily Series #3: Geeking out → The Labyrinth Problem

As per what most people would say is Energy and that is fine but if it is receiving energy where is it going all? We can’t be using all of it at least not all of it.

Law of Conservation of Energy states that ”Energy can neither be created nor destroyed; rather, it transforms from one form to another”.

Earth should have been a lot hotter of all converters in some way to heat, right? Then what do we actually get from Sun?

This was a real puzzler hiding in plain sight.

Go and watch the video on YT
I know you have nothing better to do on a Sunday😂

Spoiler alert🚨:
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
You will need to revisit law of thermodynamics that you read about in middle school.

One of the most important, yet least understood, concepts in all of physics. Head to https://brilliant.org/veritasium to start your free 30-day trial, and th...

The Most Misunderstood Concept in Physics

What does Earth receive from Sun?

Wordle 1,156 3/6

🟨🟨⬜🟩⬜
🟩🟩⬜🟩⬜
🟩🟩🟩🟩🟩

WordleBot
Skill 77/99
Luck 85/99

Wordle 1,156

Wordle 1,175 4/6

⬜⬜⬜🟨⬜
🟨⬜🟩⬜⬜
🟨🟨🟩⬜⬜
🟩🟩🟩🟩🟩

WordleBot
Skill 60/99
Luck 66/99

Wordle 1,175

Wordle 1,139 4/6

⬛⬛⬛🟨⬛
⬛⬛⬛⬛⬛
⬛🟨⬛🟨🟨
🟩🟩🟩🟩🟩

daily mandatory worlde post

Staff Engineer

Any weekend plans?
Is it only me who’s just sitting idle and thinking what to do during weekends, and will end up getting bored or probably sleeping?

Any good suggestions?

Weekend plans

Wordle 1,171 2/6*

🟩⬛🟨⬛🟨
🟩🟩🟩🟩🟩

WordleBot
Skill 88/99
Luck 92/99

Wordle 1171

Welcome to Indian Startups's Private Community

HEY!
I've created a puzzle-style game currently in beta with known bugs and occasional slowness.
Please try it out and let me know about your experience & suggestions as well. 🙌🏻
It's best enjoyed on📱mobile devices, and don't forget, it features a real-time challenge mode for competing against your friends!"
Get ready to race against time and colors to top the leaderboard!! 🏆
https://douse-game.vercel.app/signin

Need people to try out a puzzle based game?

Wordle 1,196 6/6

⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜
🟨🟩⬜⬜⬜
⬜🟩🟨⬜🟨
⬜🟩🟩🟩⬜
🟩🟩🟩🟩🟩

WordleBot
Skill 55/99
Luck 31/99

Wordle 1,196

Welcome to Product Managers's Private Community

What are some intriguing problems/ puzzles you have been subjected to as part of the PM interview process.

Format: Role –> Company –> Problem statement –> Outcome

Share your favourite puzzle or mystery question, we'll try to solve it (in comments)

Discover More

Software Engineers on

by Jordon Olive

Stealth

[Puzzle] you know it's gonna be fun working with them, when they give technical puzzles as part of job application itself

Adulting on

by Isaiah Taye

Stealth

Anyone remember how this puzzle was solved?

Misc on

by Kendall Denver

Stealth

Maths Puzzles Help!

Software Engineers on

by Coy Nadeen

Biocon Ltd.

Puzzles we created ourselves :D

Misc on

by Coy Olive

Stealth

Share your favorite puzzle mobile/desktop games

Misc on

by Kendall Carmden

TripAdvisor

Stupid question asked in interview.

Business Roles on

by Kalan Olive

Startup

Logical reasoning and puzzle questions

Software Engineers on

by Jordon Lee

Gojek

Daily Series #3: Geeking out → The Labyrinth Problem

Misc on

by Karilyn Lee

Cisco

What does Earth receive from Sun?

Misc on

by Kendall Everett

LTIMindtree

Wordle 1,156

Misc on

by Kendall Vernon

LTIMindtree

Wordle 1,175

Misc on

by Jordon Taye

A large US based MNC.

daily mandatory worlde post

Misc on

by Aaron Gabriel

ServiceNow

Weekend plans

Misc on

by Aaron Taye

A large US based MNC.

Wordle 1171

Indian Startups on

by Kendall Dean

Flipkart

Need people to try out a puzzle based game?

Misc on

by Kalan Lee

LTIMindtree

Wordle 1,196

Product Managers on

by Matilda Vernon

Hidden

PM Interview experience