84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
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#include <cmath>
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#include <cstdint>
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#include <cstdlib>
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// #include <format>
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#include <fstream>
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#include <print>
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#include <regex>
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#include <sstream>
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#include <string>
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#include <tuple>
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auto parse_line(std::string line) -> std::tuple<double_t, double_t> {
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auto is = std::stringstream{line};
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double_t time, high, low;
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is >> time >> high >> low;
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return std::tuple{time, high};
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}
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int main(int argc, char **argv) {
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if (argc != 2) {
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// std::println("Usage: {} <file>", argv[0]);
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exit(0);
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}
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auto file = std::ifstream{argv[1]};
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// main logic
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auto re = std::regex{"^\\d+\\.\\d+ \\d+\\.\\d+ \\d+\\.\\d+$"};
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std::string expectedFirst = "10.000000000000000 0.000000 0.000000";
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std::string expectedLast = "16.000000000000000 1000.000000 0.000000";
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bool is_in_high = false;
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bool is_first_line = true;
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bool is_valid_last_line = false;
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double_t last_low_time = 0;
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double_t riseup_time = 0;
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int32_t rise_count = 0;
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std::string line;
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while (std::getline(file, line)) {
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if (is_first_line) {
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if (line != expectedFirst) {
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std::println("Invalid first line: {}", line);
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return 2;
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}
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is_first_line = false;
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}
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if (!std::regex_match(line, re)) {
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std::println("Invalid line!: {}", line);
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return 2;
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}
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is_valid_last_line = (line == expectedLast);
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auto temp = parse_line(line);
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auto time = std::get<0>(temp);
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auto high = std::get<1>(temp);
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if (high == 0) {
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last_low_time = time;
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} else if (!is_in_high && high > 500) {
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riseup_time = time;
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rise_count++;
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is_in_high = true;
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} else if (is_in_high && high < 500) {
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is_in_high = false;
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}
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}
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if (!is_valid_last_line) {
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std::println("Invalid last line: {}", line);
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return 2;
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}
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if (rise_count > 1) {
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std::println("Too many rise counts: {}", rise_count);
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return 2;
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}
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auto transition_is_too_long = (riseup_time - last_low_time) > (1. / 57 * 6);
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if (transition_is_too_long) {
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std::println("Too long transition: {} ns", riseup_time - last_low_time);
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return 2;
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}
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return 1;
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}
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