That’s some elegant code! Then again, I suppose that’s the beauty of nim.
I am a professor of computer science at Southeast Missouri State university. I have been coding ever since I wrote my first line of BASIC back in the 1980s. I like reading, retrocomputing, modern computing, artificial intlligence, programming, electronics, and math.
That’s some elegant code! Then again, I suppose that’s the beauty of nim.
Today was the easiest day so far IMHO. Today, I coded in PHP, a horrible language that produces even worse code. (Ok, full confession, I fed my family for about half a decade on PHP. I seemed to have gotten stuck with it, and so I earned a PhD to escape it.)
Anyway, the only trouble I had was I forgot about the explode function’s capacity to return empty strings. Once I filtered those I had the correct answer on the first one, and then 10 minutes later I had the second part. I wrote my code true to raw php’s awful idioms, though I didn’t make it web based. I read from stdin.
My code is linked on github:
I wrote today’s program in Python. (I am going to do a different language each day.) The only thing that gave me a little trouble was I was counting “\n” as a part label. Once I realized that I was able to get both problems done very quickly.
My code for the two parts is on github:-
C++
Yesterday, I decided to code in Tcl. That program is still running, i will go back to the day 5 post once it finishes :)
Today was super simple. My first attempt worked in both cases, where the hardest part was really switching my ints to long longs. Part 1 worked on first compile and part 2 I had to compile twice after I realized the data type needs. Still, that change was made by search and replace.
I guess today was meant to be a real time race to get first answer? This is like day 1 stuff! Still, I have kids and a job so I did not get to stay up until the problem was posted.
I used C++ because I thought something intense may be coming on the part 2 problem, and I was burned yesterday. It looks like I spent another fast language on nothing! I think I’ll keep zig in the hole for the next number cruncher.
Oh, and yes my TCL program is still running…
My solutions can be found here:
// File: day-6a.cpp // Purpose: Solution to part of day 6 of advent of code in C++ // https://adventofcode.com/2023/day/6 // Author: Robert Lowe // Date: 6 December 2023 #include #include #include #include std::vector parse_line() { std::string line; std::size_t index; int num; std::vector result; // set up the stream std::getline(std::cin, line); index = line.find(':'); std::istringstream is(line.substr(index+1)); while(is>>num) { result.push_back(num); } return result; } int count_wins(int t, int d) { int count=0; for(int i=1; i d) { count++; } } return count; } int main() { std::vector time; std::vector dist; int product=1; // get the times and distances time = parse_line(); dist = parse_line(); // count the total number of wins for(auto titr=time.begin(), ditr=dist.begin(); titr!=time.end(); titr++, ditr++) { product *= count_wins(*titr, *ditr); } std::cout << product << std::endl; }
// File: day-6b.cpp // Purpose: Solution to part 2 of day 6 of advent of code in C++ // https://adventofcode.com/2023/day/6 // Author: Robert Lowe // Date: 6 December 2023 #include #include #include #include #include #include std::vector parse_line() { std::string line; std::size_t index; long long num; std::vector result; // set up the stream std::getline(std::cin, line); line.erase(std::remove_if(line.begin(), line.end(), isspace), line.end()); index = line.find(':'); std::istringstream is(line.substr(index+1)); while(is>>num) { result.push_back(num); } return result; } long long count_wins(long long t, long long d) { long long count=0; for(long long i=1; i d) { count++; } } return count; } int main() { std::vector time; std::vector dist; long long product=1; // get the times and distances time = parse_line(); dist = parse_line(); // count the total number of wins for(auto titr=time.begin(), ditr=dist.begin(); titr!=time.end(); titr++, ditr++) { product *= count_wins(*titr, *ditr); } std::cout << product << std::endl; }