View .bazelrc
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build --color=yes | |
build --cxxopt=-std=c++20 | |
build --cxxopt=-pedantic | |
build --cxxopt=-Wall | |
build --cxxopt=-Wextra | |
build --cxxopt=-Werror | |
build:debug --cxxopt=-ggdb3 |
View WORKSPACE
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load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive") | |
http_archive( | |
name = "com_google_googletest", | |
strip_prefix = "googletest-609281088cfefc76f9d0ce82e1ff6c30cc3591e5", | |
urls = ["https://github.com/google/googletest/archive/609281088cfefc76f9d0ce82e1ff6c30cc3591e5.zip"], | |
) |
View BUILD
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load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test") | |
cc_library( | |
name = "trivial", | |
srcs = ["trivial.cc"], | |
hdrs = ["trivial.h"], | |
) | |
cc_library( | |
name = "sliding", |
View aoc-2021-solution-day1-part2-forloop.cc
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uint32_t count_increasing_windows(std::istream &input) { | |
uint32_t e1 = 0, e2 = 0, e3 = 0, prev_sum = std::numeric_limits<uint32_t>::max(), drop = 2, cnt = 0; | |
for (uint32_t v : std::ranges::istream_view<uint32_t>(input)) { | |
e1 = std::exchange(e2, std::exchange(e3, v)); | |
if (drop > 0) { | |
drop--; | |
continue; | |
} | |
if (std::exchange(prev_sum, e1 + e2 + e3) < e1 + e2 + e3) | |
cnt++; |
View aoc-2021-solution-day1-part2-main.cc
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int main(int argc, char *argv[]) { | |
if (argc != 2) { | |
std::cerr << "This program expects one parameter that is the input file to read.\n"; | |
return 1; | |
} | |
std::ifstream input(argv[1]); | |
if (!input.is_open()) { | |
std::cerr << "Failed to open file.\n"; | |
return 1; | |
} |
View aoc-2021-solution-day1-part1.cc
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uint32_t count_increasing_windows(std::istream &input) { | |
auto sliding_window_view = std::ranges::istream_view<uint32_t>(input) | |
| std::ranges::views::transform([e1 = 0, e2 = 0, e3 = 0](uint32_t curr) mutable { | |
e1 = std::exchange(e2, std::exchange(e3, curr)); | |
return e1 + e2 + e3; | |
}); | |
return std::ranges::count_if(sliding_window_view, | |
[prev = std::numeric_limits<uint32_t>::max(), drop = 2] | |
(uint32_t curr) mutable { |
View test-aoc2021-day1-part2.cc
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TEST(SlidingTest, Simple) { | |
std::vector<std::pair<std::string, uint32_t>> inputs = { | |
{"", 0}, // not enough elements for a window | |
{"0 1", 0}, // not enough elements for a window | |
{"0 1 0", 0}, // a single window | |
{"0 0 0 0 0 0", 0}, // monotonic, no increase | |
{"0 1 2 3", 1}, // two windows, increasing | |
{"3 2 1 0", 0}, // two windows, decreasing | |
{"0 1 0 1 0 1", 2}, // 1, 2, 1, 2 - two increasing | |
{"199 200 208 210 200 207 240 269 260 263", 5}, // from aoc |
View aoc-2021-solution-day1-part1-main.cc
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int main(int argc, char *argv[]) { | |
if (argc != 2) { | |
std::cerr << "This program expects one parameter that is the input file to read.\n"; | |
return 1; | |
} | |
std::ifstream input(argv[1]); | |
if (!input.is_open()) { | |
std::cerr << "Failed to open file.\n"; | |
return 1; | |
} |
View aoc-2021-solution-day1-part1.cc
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#include <algorithm> | |
#include <istream> | |
#include <limits> | |
#include <ranges> | |
#include <utility> | |
uint32_t count_increasing(std::istream &input) { | |
return std::ranges::count_if( | |
std::ranges::istream_view<uint32_t>(input), | |
[prev = std::numeric_limits<uint32_t>::max()](uint32_t curr) mutable |
View test-aoc2021-day1-part1.cc
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#include "trivial.h" | |
#include <gtest/gtest.h> | |
#include <sstream> | |
TEST(TrivialTest, Simple) { | |
std::vector<std::pair<std::string, uint32_t>> inputs = { | |
{"", 0}, // empty input 0 increasing | |
{"0", 0}, // single element 0 increasing | |
{"0 1", 1}, // two elements, with increase |
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