1 files changed, 34 insertions, 0 deletions
diff --git a/day2.c b/day2.c
new file mode 100644
index 0000000..de96175
--- /dev/null
+++ b/day2.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+
+int min2(int a, int b) {
+  if (a < b) return a;
+  return b;
+}
+int min3(int a, int b, int c) {
+  return min2(min2(a, b), c);
+}
+
+int readsides(int* length, int* width, int* height) {
+  return scanf("%dx%dx%d", length, width, height);
+}
+
+void calcsides(int length, int width, int height, int* side1, int* side2, int* side3) {
+  (*side1) = length * width;
+  (*side2) = width * height;
+  (*side3) = height * length;
+}
+
+int main() {
+  int length, width, height;
+  int side1, side2, side3;
+  int area, totalarea = 0;
+
+  while (readsides(&length, &width, &height) > 0) {
+    calcsides(length, width, height, &side1, &side2, &side3);
+    area = 2*side1 + 2*side2 + 2*side3 + min3(side1, side2, side3);
+    totalarea += area;
+  }
+
+  printf("%d\n", totalarea);
+  return 0;
+}