feat: day5 part1 complete

1 files changed, 54 insertions, 0 deletions

diff --git a/day5/part1/main.ha b/day5/part1/main.ha
new file mode 100644
index 0000000..d3505de
--- /dev/null
+++ b/day5/part1/main.ha
@@ -0,0 +1,54 @@
+use fmt;
+use io;
+use os;
+use strconv::{stou64};
+use strings::{cut, fromutf8_unsafe, split};
+
+fn is_fresh(fresh_ranges: [](u64, u64), ingredient: u64) bool = {
+	for (let range .. fresh_ranges) {
+		if (ingredient >= range.0 && ingredient <= range.1)
+			return true;
+	};
+
+	return false;
+};
+
+export fn main() void = {
+	let handle = os::open("input.txt")!;
+	defer io::close(handle)!;
+
+	let buf = io::drain(handle)!;
+	defer free(buf);
+
+	let lines = split(fromutf8_unsafe(buf), "\n")!;
+
+	let ranges: [](u64, u64) = [];
+	let available: []u64 = [];
+	let passed_ranges = false;
+
+	let fresh_ingredients: u64 = 0;
+
+	for (let line .. lines) {
+		if (passed_ranges) {
+			if (line != "")
+				append(available, stou64(line)!)!;
+		} else {
+			if (line != "") {
+				let range = cut(line, "-");
+
+				let start = stou64(range.0)!;
+				let end = stou64(range.1)!;
+
+				append(ranges, (start, end))!;
+			} else {
+				passed_ranges = true;
+			};
+		};
+	};
+
+	for (let ingredient .. available)
+		if (is_fresh(ranges, ingredient))
+			fresh_ingredients += 1;
+
+	fmt::printfln("Answer: {}", fresh_ingredients)!;
+};