From c316d355c3458aedec7c7cb3420ddba05888e705 Mon Sep 17 00:00:00 2001
From: Christian Segundo
Date: Thu, 1 Dec 2022 10:04:05 +0100
Subject: day 1

---
 day-1/main.zig | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 day-1/main.zig

(limited to 'day-1/main.zig')

diff --git a/day-1/main.zig b/day-1/main.zig
new file mode 100644
index 0000000..b2760fb
--- /dev/null
+++ b/day-1/main.zig
@@ -0,0 +1,34 @@
+const std = @import("std");
+
+var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+const allocator = gpa.allocator();
+
+pub fn main() !void {
+    var path_buffer: [std.fs.MAX_PATH_BYTES]u8 = undefined;
+    const path = try std.fs.realpath("./input", &path_buffer);
+
+    const file = try std.fs.openFileAbsolute(path, .{});
+    defer file.close();
+
+    const file_size = (try file.stat()).size;
+
+    const file_buffer = try file.readToEndAlloc(allocator, file_size);
+    defer allocator.free(file_buffer);
+
+    var iter = std.mem.split(u8, file_buffer, "\n");
+    var count: i32 = 0;
+    var max: i32 = 0;
+
+    while (iter.next()) |line| {
+        if (line.len == 0) {
+            if (count > max) {
+                max = count;
+            }
+            count = 0;
+        } else {
+            count += try std.fmt.parseInt(i32, line, 0);
+        }
+    }
+
+    std.debug.print("{d}\n", .{max});
+}
-- 
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