I'm not as good at math as I expect

1 files changed, 18 insertions, 0 deletions

diff --git a/codechef/ks2.c b/codechef/ks2.c
new file mode 100644
index 0000000..6681de6
--- /dev/null
+++ b/codechef/ks2.c
@@ -0,0 +1,18 @@
+/*
+ * Me, as a maintainer: No, you can NOT use magic numbers like that!
+ * Also me, doing competitive:
+ */
+#include <stdio.h>
+
+int main()
+{
+	int t, a, c;
+
+	scanf("%d ", &t);
+	while (t--) {
+		for (a = 420; (c = getchar()) > 42; a += 48 - putchar(c));
+		printf("%d\n", a % 10);
+	}
+
+	return 0;
+}