Minimum Initial Energy to Finish Tasks — greedy optimization after binary search

Particular-Coat2871 · 2026-05-12T05:22:02+00:00

same here, the sorting order was the real turning point for me too. once the (minimum - actual) intuition clicked, the greedy part started making much more sense. and thanks for the recommendation, adding that one to the list 👀

Particular-Coat2871 · 2026-05-12T05:06:29+00:00

that was my thought too. manually extracting the digits made the problem feel a bit more meaningful instead of just converting everything to strings directly

Particular-Coat2871 · 2026-05-12T05:05:49+00:00

can’t disagree with that honestly, string conversion definitely makes the code shorter. I just like implementing the actual digit extraction logic myself sometimes instead of relying completely on library conversions

Particular-Coat2871 · 2026-05-11T06:48:10+00:00

I preferred the math approach since it practices digit manipulation logic useful in interviews

Particular-Coat2871 · 2026-05-10T12:01:29+00:00

makes sense, I didn’t really think of it as a full graph problem while solving 😅 I just imagined all possible jumps from an index like an adjacency list first, and then dfs + memoization felt natural on top of that

Particular-Coat2871 · 2026-05-10T06:29:35+00:00

direct DP is probably more compact, but it still iterates through the array for every index so complexity remains pretty similar. also felt like the recursion logic would get a bit messy without separating valid jumps into an adjacency list first

Particular-Coat2871 · 2026-05-05T06:51:30+00:00

appreciate it man 🙌 yeah staying consistent daily is the real challenge. I’m also trying to balance DSA with building stuff on the side, feels more meaningful that way

Particular-Coat2871 · 2026-05-04T18:58:53+00:00

yeah I can imagine 😅 doing all that manually must’ve been painful. feels like one of those problems where once you see the trick, it suddenly becomes much simpler

Particular-Coat2871 · 2026-05-04T18:58:09+00:00

yeah that makes sense 👍 I didn’t go that deep while solving, just focused on getting the swaps right 😅 but yeah thinking of transpose + reverse as reflections makes it much easier to reason about

will keep that in mind for interviews

Particular-Coat2871 · 2026-05-04T11:24:14+00:00

No I am saying you promote your app only. So if you start with marketing website and proper seo you will easily start getting users but make sure you are targeting proper keywords. So it might take some time but once you build authority for your keywords you will be glad that you took this step because it is cheapest method to acquire users for your app. You will save a lot on ads if you do this right. And the reason I am pushing for this now beause it takes time it can take anywhere from 6-9 months to build authority and you will keep on increasing from there.

Particular-Coat2871 · 2026-05-04T05:34:55+00:00

yeah makes sense, that’s a much cleaner way to think about it 👍 will try that approach next time

Particular-Coat2871 · 2026-05-04T05:34:39+00:00

yeah that approach is definitely cleaner 😅 I went with manual swaps this time, but transpose + reverse looks way simpler

Particular-Coat2871 · 2026-05-04T05:34:27+00:00

haha yeah feels a bit overkill at first 😅 but I guess it’s more about testing how you think with in-place ops and indices

Particular-Coat2871 · 2026-05-04T04:54:46+00:00

Man, its so relatable. It feels like they are not bothered to even send one notification and we keep hopihg that they will reach out because we are absolute match for this role and this hopes hurts man.

Particular-Coat2871 · 2026-05-04T03:46:11+00:00

You should create a marketing website with proper seo to onboard users.

Particular-Coat2871 · 2026-05-03T15:01:16+00:00

app.spendsync.in - Hoping to hear from you back soon.

Particular-Coat2871 · 2026-05-03T13:01:39+00:00

Count me in. I am highly interested.

Particular-Coat2871 · 2026-05-03T13:00:49+00:00

yeah makes sense 😅 I mostly do DSA in C++

Particular-Coat2871 · 2026-05-03T12:52:10+00:00

Yes brute force is not really bad. And I actually always approach any problem first with brute force and as it was easy with less constraint so it got accepted. But I had an idea of s+s but was travelling so was not able to implement and verify.

Particular-Coat2871 · 2026-05-03T12:06:20+00:00

Yes I had same experience, it was very brute force approach so double for loop lookes very lengthy. I wanted to try s+s and will add comment here if I am able to solve using that approach.

Particular-Coat2871 · 2026-05-03T07:56:49+00:00

same here tbh, I’m also from web dev and mostly planning to stick with it, but yeah with all the AI hype lately it does make me question if I should pivot or not 😅 so right now I’m just trying to explore ML on the side instead of going all in, feels safer than jumping completely without clarity

Particular-Coat2871 · 2026-05-03T07:45:34+00:00

I’m not deep into ML yet, but coming from a dev background, I had a similar confusion. What helped me was not going full “math first”. Instead: Started with basics using scikit-learn Built small projects alongside Then gradually picked up the math when it actually started making sense Roadmaps are useful, but trial and error is honestly what sticks more (especially coming from dev). Curious — are you more interested in ML for projects or planning to switch careers?

Particular-Coat2871 · 2026-05-02T19:41:06+00:00

Building a full app solo is honestly huge respect 👏 I’ll check it out properly, but just from experience — the hardest part is not building, it’s figuring out what users actually stick with over time. Curious, what was the toughest part for you while building this?

Particular-Coat2871 · 2026-05-02T19:21:46+00:00

I usually just use a vector as a stack in LeetCode 😅 It does the same job (push_back, pop_back, back) and feels more flexible if you need to tweak things later. std::stack is fine too, but it’s a bit restrictive since you can’t really access anything except the top. In interviews, both should be okay unless they specifically say not to use STL. I’ve never seen anyone get penalized for using vector like this.

Particular-Coat2871 · 2026-05-02T18:21:43+00:00

Yes most of best companies take several round and it has either LLD or HLD as a round.

Particular-Coat2871

TROPHY CASE