const std = @import("std");

const input = @embedFile("input");

fn floorTester(in: []const u8) i32{
    var floor: i32 = 0;
    for (in) |c|{
        switch (c){
            '(' => floor += 1,
            ')' => floor -= 1,
            else => unreachable,
        }
    }
    return floor;
}

fn whenBasement(in: []const u8) ?usize{
    var floor: i32 = 0;
    for (in, 0..) |c, i|{
        switch (c){
            '(' => floor += 1,
            ')' => floor -= 1,
            else => unreachable,
        }
        if (floor < 0) return i+1;
    }
    return null;
}

pub fn main() void{
    std.debug.print("Is on floor {d}\n", .{floorTester(input)});
    std.debug.print("Is in basement at {?}\n", .{whenBasement(input)});
}