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Add 2022 day 10 cpp
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‎2022/README.md‎

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@@ -16,3 +16,4 @@ This folder contains solutions to each of the problems in Advent of Code 2022 in
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| <nobr> [Day 7: No Space Left On Device](https://adventofcode.com/2022/day/7) </nobr> | <nobr> [Part 1](/2022/cpp/day_07a.cpp) [Part 2](/2022/cpp/day_07b.cpp) </nobr> | </nobr> [Link](/2022/input/day_07_input) </nobr> | </nobr> [Link](/2022/sample_input/day_07_sample_input) </nobr> | </nobr> [Link](/2022/puzzles/day_07_puzzle) </nobr> |
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| <nobr> [Day 8: Treetop Tree House](https://adventofcode.com/2022/day/8) </nobr> | <nobr> [Part 1](/2022/cpp/day_08a.cpp) [Part 2](/2022/cpp/day_08b.cpp) </nobr> | </nobr> [Link](/2022/input/day_08_input) </nobr> | </nobr> [Link](/2022/sample_input/day_08_sample_input) </nobr> | </nobr> [Link](/2022/puzzles/day_08_puzzle) </nobr> |
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| <nobr> [Day 9: Rope Bridge](https://adventofcode.com/2022/day/9) </nobr> | <nobr> [Part 1](/2022/cpp/day_09a.cpp) [Part 2](/2022/cpp/day_09b.cpp) </nobr> | </nobr> [Link](/2022/input/day_09_input) </nobr> | </nobr> [Link](/2022/sample_input/day_09_sample_input) </nobr> | </nobr> [Link](/2022/puzzles/day_09_puzzle) </nobr> |
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| <nobr> [Day 10: Cathode-Ray Tube](https://adventofcode.com/2022/day/10) </nobr> | <nobr> [Part 1](/2022/cpp/day_10a.cpp) [Part 2](/2022/cpp/day_10b.cpp) </nobr> | </nobr> [Link](/2022/input/day_10_input) </nobr> | </nobr> [Link](/2022/sample_input/day_10_sample_input) </nobr> | </nobr> [Link](/2022/puzzles/day_10_puzzle) </nobr> |

‎2022/cpp/day_10a.cpp‎

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#include <fstream>
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#include <iostream>
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#include <string>
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class CommSystem {
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public:
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void noop() {
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tick();
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};
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void addx(const int val) {
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tick();
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tick();
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X += val;
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}
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long long get_signal_strength() {
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return signal_strength;
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}
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private:
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void tick() {
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cycle_count++;
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if ((cycle_count - 20) % 40 == 0) {
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signal_strength += cycle_count * X;
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}
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}
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long long X = 1;
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long long cycle_count = 0;
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long long signal_strength = 0;
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};
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int main(int argc, char * argv[]) {
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std::string input = "../input/day_10_input";
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if (argc > 1) {
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input = argv[1];
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}
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std::string line;
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std::fstream file(input);
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CommSystem cs;
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while(std::getline(file, line)) {
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// std::cout << line << '\n';
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const auto space = line.find(' ');
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const auto instr = line.substr(0, space);
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if (instr == "noop") {
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cs.noop();
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} else if (instr == "addx") {
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cs.addx(std::stoi(line.substr(space + 1, line.size() - space - 1)));
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}
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}
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std::cout << cs.get_signal_strength() << '\n';
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return 0;
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}

‎2022/cpp/day_10b.cpp‎

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#include <array>
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#include <fstream>
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#include <iostream>
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#include <string>
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class CommSystem {
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public:
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void noop() {
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tick();
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};
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void addx(const int val) {
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tick();
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tick();
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X += val;
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}
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long long get_signal_strength() {
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return signal_strength;
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}
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void print_screen() {
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for(const auto& row : screen) {
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for (const auto ele : row) {
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std::cout << ele;
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}
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std::cout << '\n';
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}
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}
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private:
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void update_crt() {
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const auto pixel_id = (cycle_count - 1) % 240;
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const auto pixel_row = pixel_id / 40;
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const auto pixel_col = pixel_id % 40;
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// std::cout << "CRT at position: " << pixel_id << " (" << pixel_row << ',' << pixel_col << ')' << '\n';
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if (pixel_col == X || pixel_col == (X - 1) || pixel_col == (X + 1)) {
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screen[pixel_row][pixel_col] = '#';
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} else {
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screen[pixel_row][pixel_col] = '.';
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}
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}
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void tick() {
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// std::cout << "Begin cycle: " << cycle_count + 1 << '\n';
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cycle_count++;
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update_crt();
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// print_screen();
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if ((cycle_count - 20) % 40 == 0) {
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signal_strength += cycle_count * X;
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}
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// std::cout << "End cycle: " << cycle_count << '\n';
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}
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long long X = 1;
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long long cycle_count = 0;
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long long signal_strength = 0;
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std::array<std::array<char, 40>, 6> screen = {};
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};
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int main(int argc, char * argv[]) {
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std::string input = "../input/day_10_input";
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if (argc > 1) {
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input = argv[1];
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}
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std::string line;
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std::fstream file(input);
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CommSystem cs;
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while(std::getline(file, line)) {
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// std::cout << line << '\n';
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const auto space = line.find(' ');
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const auto instr = line.substr(0, space);
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if (instr == "noop") {
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cs.noop();
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} else if (instr == "addx") {
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cs.addx(std::stoi(line.substr(space + 1, line.size() - space - 1)));
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}
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}
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cs.print_screen();
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return 0;
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}

‎2022/sample_input/day_10_sample_input‎

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addx 15
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addx -11
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addx 6
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addx -3
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addx 5
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addx -1
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addx -8
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addx 13
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addx 4
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noop
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addx -1
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addx 5
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addx 5
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addx 1
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addx 24
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addx 1
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addx -11
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noop
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addx 21
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addx -36
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addx 7
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addx 9
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addx -1
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addx 20
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addx -6
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addx -11
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noop

‎README.md‎

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| Year | C++ | Python | Link to folders | Link to README.md |
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|:----:|:----:|:----:|:----:|:----:|
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|2022 |1-9 | - | [Link](/2022/) |[Link](/2022/README.md) |
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|2022 |1-10 | - | [Link](/2022/) |[Link](/2022/README.md) |
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|2021 |1-25 | - | [Link](/2021/) |[Link](/2021/README.md) |
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|2020 |1-25 |1-25 | [Link](/2020/) |[Link](/2020/README.md) |
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|2019 |1-25 |1-7 | [Link](/2019/) |[Link](/2019/README.md) |

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