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Day 2 part 1

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Adam Millerchip 2022-08-11 23:30:52 +09:00
parent 6d677300ee
commit be7c251662
1 changed files with 23 additions and 2 deletions
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25
2020/zig/src/day02.zig
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@ -9,10 +9,31 @@ const Str = []const u8;
const util = @import("util.zig"); const util = @import("util.zig");
const gpa = util.gpa; const gpa = util.gpa;
const data = @embedFile("../data/day02.txt"); const data = @embedFile("input");
pub fn main() !void { pub fn main() !void {
var it = tokenize(u8, data, "\n");
var valid_pw_count: u16 = 0;
while (it.next()) |line| {
var line_it = tokenize(u8, line, ": -");
const min_val = try parseInt(u8, line_it.next().?, 10);
const max_val = try parseInt(u8, line_it.next().?, 10);
const req_char = line_it.next().?[0];
const password = line_it.next().?;
// count how many times req_char is in password
var count: u8 = 0;
for (password) |password_char| {
if (req_char == password_char)
count += 1;
}
if (min_val <= count and count <= max_val)
valid_pw_count += 1;
print("{d}-{d} {c}: {s} => {d}\n", .{min_val, max_val, req_char, password, count});
}
print("{d}\n", .{valid_pw_count});
} }
// Useful stdlib functions // Useful stdlib functions