advent of code 2024 day 1 problem 1

Vicfred · Dec 5, 2024 · 6e855d5 · 6e855d5
1 parent a25ee4a
commit 6e855d5
Showing 1 changed file with 30 additions and 0 deletions.
diff --git a/aoc/aoc2024day01historianhysteria.d b/aoc/aoc2024day01historianhysteria.d
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+import std.algorithm;
+import std.stdio;
+
+long abs(long x) {
+  if(x < 0) {
+    return -x;
+  }
+  return x;
+}
+
+void main() {
+  auto input = File("input.txt");
+  long[] u;
+  long[] v;
+  long answer = 0;
+  while(!input.eof()) {
+    long x, y;
+    input.readf("%d %d\n", &x, &y);
+    if(!input.eof()) {
+      u ~= x;
+      v ~= y;
+    }
+  }
+  u.sort;
+  v.sort;
+  for(long i = 0; i < 1000; ++i) {
+    answer += abs(u[i] - v[i]);
+  }
+  answer.writeln;
+}