1 files changed, 10 insertions, 0 deletions
diff --git a/rushs/tinyprintf/facto/facto.sh b/rushs/tinyprintf/facto/facto.sh
new file mode 100755
index 0000000..350973a
--- /dev/null
+++ b/rushs/tinyprintf/facto/facto.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+[ $# -ne 1 ] && exit 1
+i=$1
+res=1
+while [ "$i" -gt 0 ]; do
+    res=$(($res * $i))
+    i=$(($i - 1))
+done
+echo "$res"