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const std = @import("std");
const day6 = @import("day6");
test "max length" {
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const alloc = gpa.allocator();
const cwd = std.fs.cwd();
const fileContents = try cwd.readFileAlloc(alloc, "day6.txt", 24000);
defer alloc.free(fileContents);
var lines = std.mem.splitScalar(u8, fileContents, '\n');
var max_col_len: usize = 0;
var max_row_len: usize = 0;
while (lines.next()) |row| {
if (row.len == 0) {
break;
}
var r = std.mem.splitScalar(u8, row, ' ');
while (r.next()) |c| {
std.debug.print("Max_len:{}, c:{s}, c.len:{}\n", .{ max_col_len, c, c.len });
max_col_len = @max(max_col_len, c.len);
}
max_row_len = @max(max_row_len, row.len);
}
std.debug.print("Max col len: {}\n", .{max_col_len}); // 4
std.debug.print("Max row len: {}\n", .{max_row_len}); // 3745
}
pub fn main() !void {
// Initiate allocator
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const alloc = gpa.allocator();
// Read contents from file "./filename"
const cwd = std.fs.cwd();
const fileContents = try cwd.readFileAlloc(alloc, "day6.txt", 24000);
defer alloc.free(fileContents);
var numbers = std.array_list.Aligned([]const u8, null).empty;
defer numbers.deinit(alloc);
// Print file contents
// std.debug.print("{s}", .{fileContents});
var lines = std.mem.splitScalar(u8, fileContents, '\n');
var final_result: u64 = 0;
while (lines.next()) |row| {
if (row.len == 0) { // break between ranges and values
break;
}
try numbers.append(alloc, row);
}
var current_operator_index: usize = 0;
for (numbers.items[numbers.items.len - 1][1..], 1..) |next_char, i| {
if (next_char != ' ') {
const operator: u8 = numbers.items[numbers.items.len - 1][current_operator_index];
var result: u64 = 0;
if (operator == '*') {
result = 1;
}
std.debug.print("before result:|{}|\n", .{result});
for (current_operator_index..i - 1) |j| { //cols
var current_nums = try std.array_list.Aligned(u8, null).initCapacity(alloc, numbers.items.len - 1);
defer current_nums.deinit(alloc);
for (0..numbers.items.len - 1) |k| { //rows
try current_nums.append(alloc, numbers.items[k][j]);
}
const current_num_str = std.mem.trim(u8, current_nums.items, " ");
std.debug.print("str:|{s}|\n", .{current_num_str});
const current_num = try std.fmt.parseInt(u64, current_num_str, 10);
if (operator == '+') {
result += current_num;
} else {
result *= current_num;
}
}
std.debug.print("result:|{}|\n", .{result});
final_result += result;
current_operator_index = i;
}
}
{
const operator: u8 = numbers.items[numbers.items.len - 1][current_operator_index];
var result: u64 = 0;
if (operator == '*') {
result = 1;
}
std.debug.print("before result:|{}|\n", .{result});
for (current_operator_index..numbers.items[numbers.items.len - 1].len) |j| { //cols
var current_nums = try std.array_list.Aligned(u8, null).initCapacity(alloc, numbers.items.len - 1);
defer current_nums.deinit(alloc);
for (0..numbers.items.len - 1) |k| { //rows
try current_nums.append(alloc, numbers.items[k][j]);
}
const current_num_str = std.mem.trim(u8, current_nums.items, " ");
std.debug.print("str:|{s}|\n", .{current_num_str});
const current_num = try std.fmt.parseInt(u64, current_num_str, 10);
if (operator == '+') {
result += current_num;
} else {
result *= current_num;
}
}
std.debug.print("result:|{}|\n", .{result});
final_result += result;
}
// var r = std.mem.splitScalar(u8, row, ' ');
// var i: usize = 0;
// while (r.next()) |value| {
// if (value.len == 0) {
// continue;
// }
// if (std.mem.eql(u8, value, "*")) {
// var result: u64 = 1;
// for (numbers.items[i].items) |line| {
// std.debug.print("i={}: result:{}*= line:{}\n", .{ i, result, line });
// result *= line;
// }
// std.debug.print("Adding {} to final result: {}\n", .{ result, final_result });
// final_result += result;
// } else if (std.mem.eql(u8, value, "+")) {
// var result: u64 = 0;
// for (numbers.items[i].items) |line| {
// std.debug.print("i={}:result:{}+= line:{}\n", .{ i, result, line });
// result += line;
// }
// std.debug.print("Adding {} to final result: {}\n", .{ result, final_result });
// final_result += result;
// } else {
// // const s: u64 = try std.fmt.parseInt(u64, value, 10);
// }
// i += 1;
// }
//
std.debug.print("result: {}\n", .{final_result});
try day6.bufferedPrint();
}
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