commit e05ce4780fb6f05418c00511ee434a66c2436f4b
parent f9bce4673dd2ad4de61dad9dc7243695b7cd8f40
Author: bsandro <email@bsandro.tech>
Date: Fri, 6 Dec 2024 00:33:05 +0200
day 05 p1+p2
Diffstat:
6 files changed, 1101 insertions(+), 2 deletions(-)
diff --git a/day05/Makefile b/day05/Makefile
@@ -0,0 +1,28 @@
+NAME=$(shell basename ${PWD})
+SRC=$(wildcard *.cpp)
+DEPS:=$(wildcard *.hpp)
+OBJ:=$(SRC:.cpp=.o)
+CXXFLAGS=-O2 -std=c++17 -Werror -Wall -Wextra -I.
+LDFLAGS=-lstdc++
+
+all: $(NAME)
+
+.PHONY: clean run
+
+clean:
+ rm -f $(OBJ) $(NAME)
+
+%.o : %.c $(DEPS)
+ @$(CC) $(CFLAGS) -c $< -o $@
+
+$(NAME): $(OBJ)
+ @$(CC) $(OBJ) -o $@ $(LDFLAGS)
+
+run: $(NAME)
+ @./$(NAME) input.txt
+
+test1: $(NAME)
+ @./$(NAME) test1.txt
+
+test2: $(NAME)
+ @./$(NAME) test2.txt
diff --git a/day05/input.txt b/day05/input.txt
@@ -0,0 +1,1000 @@
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diff --git a/day05/main.cpp b/day05/main.cpp
@@ -0,0 +1,62 @@
+#include <iostream>
+#include <filesystem>
+#include <fstream>
+#include <vector>
+#include <cstring>
+#include <cstdio>
+#include <tuple>
+#include <algorithm>
+#include <regex>
+
+typedef std::vector<std::string> Data;
+
+template<typename T>
+T read_file(const std::string &path) {
+ std::ifstream ifs(path, std::ios::binary);
+ if (!ifs.is_open()) {
+ throw std::runtime_error(path+":"+std::strerror(errno));
+ }
+ T buf;
+ while (1) {
+ std::string str;
+ std::getline(ifs, str);
+ if (!str.empty()) buf.push_back(str);
+ if (!ifs) break;
+ }
+ return buf;
+}
+
+int part1(Data &input [[ maybe_unused ]]) {
+ int r=0;
+ const std::regex re1("([aeiou]).*?([aeiou]).*?([aeiou])");
+ const std::regex re2("([a-z])\\1");
+ const std::regex re3("^(?!.*(ab|cd|pq|xy)).*$");
+ for (auto &s:input) {
+ std::smatch m1;
+ if (std::regex_search(s, m1, re1) && m1.size()>3
+ && std::regex_search(s, re2)
+ && std::regex_search(s, re3)
+ ) ++r;
+ }
+ return r;
+}
+
+int part2(Data &input [[ maybe_unused ]]) {
+ int r=0;
+ const std::regex re1("([a-z]{2}).*?\\1");
+ const std::regex re2("([a-z]).\\1");
+ for (auto &s:input) {
+ if (std::regex_search(s, re1) && std::regex_search(s, re2)) ++r;
+ }
+ return r;
+}
+
+int main(int argc, char **argv) {
+ const std::string fname = argc>1 ? argv[1] : "test1.txt";
+ std::cout << "AoC 2015 day 05 " << fname << std::endl;
+ Data input = read_file<Data>(fname);
+ std::cout << "part1: " << part1(input) << std::endl;
+ std::cout << "part2: " << part2(input) << std::endl;
+
+ return 0;
+}
diff --git a/day05/test1.txt b/day05/test1.txt
@@ -0,0 +1,5 @@
+ugknbfddgicrmopn
+aaa
+jchzalrnumimnmhp
+haegwjzuvuyypxyu
+dvszwmarrgswjxmb
diff --git a/day05/test2.txt b/day05/test2.txt
@@ -0,0 +1,4 @@
+qjhvhtzxzqqjkmpb
+xxyxx
+uurcxstgmygtbstg
+ieodomkazucvgmuy
diff --git a/tpl/main.cpp b/tpl/main.cpp
@@ -27,10 +27,10 @@ T read_file(const std::string &path) {
return buf;
}
-int part1(Data &input) {
+int part1(Data &input [[maybe_unused]]) {
return 0;
}
-int part2(Data &input) {
+int part2(Data &input [[maybe_unused]]) {
return 0;
}