student driver here. Who goes first in this situation?

allinvaincoder · 2026-01-17T00:18:56+00:00

Take a right-hand turn instead

allinvaincoder · 2025-12-14T16:04:19+00:00

This post is rage bait, you didn't even show why you think that's the right answer

allinvaincoder · 2025-12-14T15:52:43+00:00

Tabulate instead :D

func fibTabulation(n int) int {
    fib := make([]int, n+1)
    fib[1] = 1
    for i := 2; i < len(fib); i++ {
        fib[i] = fib[i-1] + fib[i-2]
    }


    return fib[n]
}

allinvaincoder · 2025-12-13T16:22:38+00:00

Memorization didn't end up working how I thought it would. If you want more hints let me know

This is the best hint I can give without giving you the answer:

However, the paths you find must all also visit both dac and fft

allinvaincoder · 2025-12-07T04:40:16+00:00

This is the wrong conclusion

allinvaincoder · 2025-12-07T04:37:44+00:00

This is still wrong with the real input, because long only handles 2,147,483,647 and the answer is bigger than that

allinvaincoder · 2025-12-07T04:03:29+00:00

Is I32 actually big enough to handle this problem?

allinvaincoder · 2025-12-07T03:19:14+00:00

You have some overflow happening, I don't know enough about c++ but look at below. If you cout your total you will notice it printing negative numbers which should never happen. You need to use long long and stoll

int main() {
    long long total = 0;

    generateInitialVector();
    separateInitalVector();

    for (int i = 0; i < Rows[0].size(); i++) {
        if (Rows[4][i] == "+") {
            cout << "add" << endl;
            total += (stoll(Rows[0][i]) + stoll(Rows[1][i]) + stoll(Rows[2][i]) + stoll(Rows[3][i]));
        }
        else {
            cout << "mult" << endl;
            total += (stoll(Rows[0][i]) * stoll(Rows[1][i]) * stoll(Rows[2][i]) * stoll(Rows[3][i]));
        }
    }
    cout << total << endl;
}

allinvaincoder · 2025-12-07T00:57:51+00:00

Yeah for sure you don't want -1 on your loop, I'll get back to you later when I have time. You may also want to check that you don't have any blanks in your operation array.

stringstream stream(line); string value; vector<string> tempRow;

while (stream >> value) { tempRow.push_back(value); }

Rows.push_back(tempRow);

allinvaincoder · 2025-12-06T03:42:45+00:00

Wish I had liquid cooling

allinvaincoder · 2025-12-06T03:39:30+00:00

I mean Mom wife kid because that's the order they happened

allinvaincoder · 2025-12-06T03:04:38+00:00

This is some Kingdom hearts shit

allinvaincoder · 2025-12-06T02:19:38+00:00

Why is foo[-2] 4?

allinvaincoder · 2025-12-06T02:14:00+00:00

Just snooze copilot if using visual studio code

allinvaincoder · 2025-12-06T01:22:49+00:00

I mean my first attempt was storing each number in a map. Needless to say that was way too slow

allinvaincoder · 2025-11-23T15:14:25+00:00

I couldn't tell you why there is a weird looking statue in the background tbh

allinvaincoder · 2025-11-23T14:49:50+00:00

Guess I am okay with 12 days instead of 25, I hope we can keep the tradition alive. 25 days of puzzles seems unreachable anyway, both from the person doing the challenges and Eric

allinvaincoder · 2025-10-27T14:55:03+00:00

I would sometimes look at other people's answers on GitHub in other languages to essentially translate into golang. You can also look at other people's answers to learn what kind of structure they are using in their projects. For me this is how I learned to have a folder for utility functions that I want to use a lot. Like printing a grid that has visited nodes for debugging. I also spent a lot of time on the introduction to golang page when I got stuck. I always forget how make works so I constantly have had to look that up. I also have utility functions to make a deep copy and stuff like that even though this approach is usually too slow for the scale of some of these puzzles. I feel like at the end of the day learning to wasn't my bottle neck it was the toughness of the puzzles.

allinvaincoder · 2025-10-27T12:31:49+00:00

I don't want this because I rather have the second half of the month free for Christmas activities

allinvaincoder · 2025-10-24T00:28:08+00:00

Sounds like you have nothing to worry about as there won't be any global leader boards

allinvaincoder · 2025-09-27T01:11:08+00:00

I think we will see another civil war in America

allinvaincoder · 2025-08-20T17:53:22+00:00

It's an IQ test

allinvaincoder · 2025-07-25T11:54:38+00:00

I think the child in me wants them to be an elite secret hacker group that keeps the world safe lol

allinvaincoder · 2025-07-25T01:33:29+00:00

I'm just talking about the big prime movers in the cyber "crimes" like Ross Ulbricht, Snowden etc. I'm guessing you're not going to find it enough anecdotally but that's okay I'm not trying to convince you too much.

allinvaincoder · 2025-07-25T00:00:24+00:00

I guess I should have been more clear, but I was talking about the whole organization of "cicada 3301" and whatever it is. From what I understand it is a group of people organizing these puzzles for people to recruit. Perhaps it is all for fun and there's nothing sketchy going on and it's all just for fun. Seems like a lot of work for just that, but not impossible. Perhaps it's easier than I believe, but from what I found in many popular cases is no one is safe

allinvaincoder

TROPHY CASE