1 files changed, 123 insertions, 0 deletions
diff --git a/day16/day16.c b/day16/day16.c
new file mode 100644
index 0000000..bdff4df
--- /dev/null
+++ b/day16/day16.c
@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <string.h>
+
+typedef struct {
+  int
+    children,
+    cats,
+    samoyeds,
+    pomeranians,
+    akitas,
+    vizslas,
+    goldfish,
+    trees,
+    cars,
+    perfumes;
+} knowledge;
+
+knowledge machine = {
+  .children = 3,
+  .cats = 7,
+  .samoyeds = 2,
+  .pomeranians = 3,
+  .akitas = 0,
+  .vizslas = 0,
+  .goldfish = 5,
+  .trees = 3,
+  .cars = 2,
+  .perfumes = 1
+};
+
+void initknowledge(knowledge* k) {
+  k->children = -1;
+  k->cats = -1;
+  k->samoyeds = -1;
+  k->pomeranians = -1;
+  k->akitas = -1;
+  k->vizslas = -1;
+  k->goldfish = -1;
+  k->trees = -1;
+  k->cars = -1;
+  k->perfumes = -1;
+}
+
+void loadknowledge(knowledge* k, char* key, int value) {
+         if(strncmp(key, "children",     8) == 0) {
+    k->children = value;
+  } else if(strncmp(key, "cats",         4) == 0) {
+    k->cats = value;
+  } else if(strncmp(key, "samoyeds",     8) == 0) {
+    k->samoyeds = value;
+  } else if(strncmp(key, "pomeranians", 11) == 0) {
+    k->pomeranians = value;
+  } else if(strncmp(key, "akitas",       6) == 0) {
+    k->akitas = value;
+  } else if(strncmp(key, "vizslas",      7) == 0) {
+    k->vizslas = value;
+  } else if(strncmp(key, "goldfish",     8) == 0) {
+    k->goldfish = value;
+  } else if(strncmp(key, "trees",        5) == 0) {
+    k->trees = value;
+  } else if(strncmp(key, "cars",         4) == 0) {
+    k->cars = value;
+  } else if(strncmp(key, "perfumes",     8) == 0) {
+    k->perfumes = value;
+  }
+}
+
+int matchknowledges(knowledge* a, knowledge* b) {
+  int val = 1;
+
+  if(a->children    != -1 && b->children    != -1 && a->children    != b->children)    val = 0;
+  if(a->cats        != -1 && b->cats        != -1 && a->cats        != b->cats)        val = 0;
+  if(a->samoyeds    != -1 && b->samoyeds    != -1 && a->samoyeds    != b->samoyeds)    val = 0;
+  if(a->pomeranians != -1 && b->pomeranians != -1 && a->pomeranians != b->pomeranians) val = 0;
+  if(a->akitas      != -1 && b->akitas      != -1 && a->akitas      != b->akitas)      val = 0;
+  if(a->vizslas     != -1 && b->vizslas     != -1 && a->vizslas     != b->vizslas)     val = 0;
+  if(a->goldfish    != -1 && b->goldfish    != -1 && a->goldfish    != b->goldfish)    val = 0;
+  if(a->trees       != -1 && b->trees       != -1 && a->trees       != b->trees)       val = 0;
+  if(a->cars        != -1 && b->cars        != -1 && a->cars        != b->cars)        val = 0;
+  if(a->perfumes    != -1 && b->perfumes    != -1 && a->perfumes    != b->perfumes)    val = 0;
+
+  return val;
+}
+
+int roughknowledges(knowledge* a, knowledge* b) {
+  int val = 1;
+
+  if(a->children    != -1 && b->children    != -1 && a->children    != b->children)    val = 0;
+  if(a->cats        != -1 && b->cats        != -1 && a->cats         > b->cats)        val = 0;
+  if(a->samoyeds    != -1 && b->samoyeds    != -1 && a->samoyeds    != b->samoyeds)    val = 0;
+  if(a->pomeranians != -1 && b->pomeranians != -1 && a->pomeranians  < b->pomeranians) val = 0;
+  if(a->akitas      != -1 && b->akitas      != -1 && a->akitas      != b->akitas)      val = 0;
+  if(a->vizslas     != -1 && b->vizslas     != -1 && a->vizslas     != b->vizslas)     val = 0;
+  if(a->goldfish    != -1 && b->goldfish    != -1 && a->goldfish     < b->goldfish)    val = 0;
+  if(a->trees       != -1 && b->trees       != -1 && a->trees        > b->trees)       val = 0;
+  if(a->cars        != -1 && b->cars        != -1 && a->cars        != b->cars)        val = 0;
+  if(a->perfumes    != -1 && b->perfumes    != -1 && a->perfumes    != b->perfumes)    val = 0;
+
+  return val;
+}
+
+int main() {
+  knowledge sue;
+  int this, know1v, know2v, know3v;
+  char know1k[16], know2k[16], know3k[16];
+
+  while(
+      scanf("Sue %d: %[a-z]: %d, %[a-z]: %d, %[a-z]: %d\n",
+        &this,
+        know1k, &know1v,
+        know2k, &know2v,
+        know3k, &know3v) != EOF) {
+    initknowledge(&sue);
+    loadknowledge(&sue, know1k, know1v);
+    loadknowledge(&sue, know2k, know2v);
+    loadknowledge(&sue, know3k, know3v);
+    if(matchknowledges(&machine, &sue))
+      printf("Almost Sue: %d\n", this);
+    if(!matchknowledges(&machine, &sue) && roughknowledges(&machine, &sue))
+      printf("Actual Sue %d\n", this);
+  }
+  return 0;
+}