1 files changed, 43 insertions, 0 deletions
diff --git a/01.c b/01.c
new file mode 100644
index 0000000..33c52aa
--- /dev/null
+++ b/01.c
@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include "input.h"
+
+#define INPUT "input/01.txt"
+
+void part1(struct input_int* input) {
+	// compute depth variations
+	int result = 0;
+	for(size_t i = 1; i < input->line_count; i++) {
+		if(input->lines[i] > input->lines[i-1])
+			result++;
+	}
+	printf("%d\n", result);
+}
+
+void part2(struct input_int* input) {
+	// compute depth variations
+	int result = 0;
+	int windowSum = input->lines[0] + input->lines[1] + input->lines[2];
+	for(size_t i = 1; i < input->line_count - 2; i++) {
+		int newWindowSum = input->lines[i] + input->lines[i+1] + input->lines[i+2];
+		if(newWindowSum > windowSum)
+			result++;
+
+		windowSum = newWindowSum;
+	}
+	printf("%d\n", result);
+}
+
+int main() {
+	// read input
+	struct input_int input;
+	input_int_read(&input, INPUT);
+
+	// do stuff
+	part1(&input);
+	part2(&input);
+
+	// cleanup & exit
+	input_int_free(&input);
+	return 0;
+}