const std = @import("std");

pub fn main() !void {
    // read the input file
    const input = try std.fs.cwd().openFile("input", .{});
    defer input.close();

    var buf_reader = std.io.bufferedReader(input.reader());
    var in_stream = buf_reader.reader();
    var buf: [1024]u8 = undefined;

    var cal : i32 = 0;
    var max_cal : i32 = 0;

    while (try in_stream.readUntilDelimiterOrEof(&buf, '\n')) |line| {
        for (line) |char| {
            if (!std.ascii.isWhitespace(char)) { // Contains a number
                const curr_cal = try std.fmt.parseInt(i32, line, 10);
                cal += curr_cal;
                break; // else branch not evaluated
            }
        } else { // All characters are whitelines
            max_cal = @max(max_cal, cal);
            cal = 0;
        }
    }

    std.debug.print("Maximum Calories: {}\n", .{max_cal});



}