day 17, part 1 (fixed solution)

day17-easy/src/main.zig

@@ -169,18 +169,17 @@ fn getNextTasks(board: []const []const u8, task: Task) NextTasks {
 }
 
 fn solveLines(lines: [][]u8) usize {
-    var total_max: u32 = 0;
     for (lines) |line| {
         for (line) |*char| {
             char.* = char.* - '0';
-            total_max += char.*;
         }
     }
 
     const x_max = @as(u8, @intCast(lines.len - 1));
     const y_max = @as(u8, @intCast(lines[x_max].len - 1));
+    const max_value: u16 = @as(u16, 18) * @max(x_max, y_max) + lines[x_max][y_max];
 
-    var results: Results = [_][150]ResultsByDirection{[_]ResultsByDirection{ResultsByDirection.initFill(total_max)} ** 150} ** 150;
+    var results: Results = [_][150]ResultsByDirection{[_]ResultsByDirection{ResultsByDirection.initFill(max_value)} ** 150} ** 150;
     var tasks = RingQueue(Task, usize, 1_024_576).init();
     tasks.add(.{
         .current_heat = lines[x_max][y_max],
@@ -208,7 +207,7 @@ fn solveLines(lines: [][]u8) usize {
     }
 
     if (false) {
-        std.debug.print("Total tasks done: {d}\n", .{i});
+        //std.debug.print("Total tasks done: {d}\n", .{i});
         for (0..lines.len) |x| {
             for (0..lines[x].len) |y| {
                 std.debug.print("{d}/{d} ", .{ results[x][y].get(.Horizontal), results[x][y].get(.Vertical) });
@@ -217,7 +216,7 @@ fn solveLines(lines: [][]u8) usize {
         }
     }
 
-    return results[0][0].get(.Vertical) - lines[0][0];
+    return @min(results[0][0].get(.Vertical), results[0][0].get(.Horizontal)) - lines[0][0];
 }
 
 pub fn solveAll(reader: anytype) !usize {