1 files changed, 2 insertions, 0 deletions

diff --git a/problem20.ijs b/problem20.ijs
new file mode 100644
index 0000000..3cf87a2
--- /dev/null
+++ b/problem20.ijs
@@ -0,0 +1,2 @@
+problem20=:+/10#.^:_1!100x
+