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path: root/src/2022/day19/aoc.h
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#include "common.h"
#include <vector>

namespace aoc2022 {

// which blueprint would maximize the number of opened geodes after 24 minutes
// by figuring out which robots to build and when to build them.
// geod <- obsi <- clay <- ore
//         ore     ore
struct blueprint {
  int idx = 0;
  int c_ore_r[2] = {0, 0};  // ore
  int c_clay_r[2] = {0, 0}; // ore
  int c_obsi_r[2] = {0, 0}; // ore + clay
  int c_geod_r[2] = {0, 0}; // ore + obsidian

  void get_number(const char** pp, int* d) {
    const char* p = *pp;
    while (*p >= '0' && *p <= '9') {
      *d = *d * 10 + *p - '0';
      p++;
    }
    *pp = p;
  }

  void print() const noexcept {
    printf("%d: %d %d [%d,%d] [%d,%d]\n", idx, c_ore_r[0], c_clay_r[0], c_obsi_r[0], c_obsi_r[1], c_geod_r[0], c_geod_r[1]);
  }

  blueprint(line_view lv) {
    const char* p = lv.line;
    int i{0};
    int* ps[7] = {&idx, c_ore_r, c_clay_r, c_obsi_r, c_obsi_r + 1, c_geod_r, c_geod_r + 1};

    while (p < lv.line + lv.length) {
      if (*p >= '0' && *p <= '9') {
        get_number(&p, ps[i++]);
      }
      p++;
    }
  }
};

std::pair<int, int> day19(line_view);
} // namespace aoc2022