5 files changed, 30 insertions, 0 deletions

diff --git a/mat/advent/6/Makefile b/mat/advent/6/Makefile
new file mode 100644
index 0000000..1e287d6
--- /dev/null
+++ b/mat/advent/6/Makefile
@@ -0,0 +1,3 @@
+default:
+	gcc -pedantic prog.c
+	gcc -pedantic n1.c -on1
diff --git a/mat/advent/6/a.out b/mat/advent/6/a.out
new file mode 100755
index 0000000..2b0aca5
--- /dev/null
+++ b/mat/advent/6/a.out
diff --git a/mat/advent/6/n1 b/mat/advent/6/n1
new file mode 100755
index 0000000..1ca7db2
--- /dev/null
+++ b/mat/advent/6/n1
diff --git a/mat/advent/6/n1.c b/mat/advent/6/n1.c
new file mode 100644
index 0000000..4f4a5a2
--- /dev/null
+++ b/mat/advent/6/n1.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+int main (int argc, char ** argv) {
+	unsigned int s = 1; /* seštevek */
+	unsigned int i = 0; /* indeks */
+	while (1) {
+		i++;
+		s = s*3;
+		if (s > 2020)
+			break;
+	}
+	fprintf(stdout, "H_%u ima ploščino, enako %u-kratniku ploščine H_0.\n", i, s);
+	return 0;
+}
diff --git a/mat/advent/6/prog.c b/mat/advent/6/prog.c
new file mode 100644
index 0000000..14eb68a
--- /dev/null
+++ b/mat/advent/6/prog.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <stdlib.h>
+int main (int argc, char ** argv) {
+	double x;
+	size_t s = 0;
+	for (double a = 1; a <= 2020; a++) {
+		x = ((float)7/(float)5)*(float)a;
+		if (x == (int)x)
+			s++;
+	}
+	fprintf(stderr, "%lu\n", s);
+	return 0;
+}