Initial data commit

Task/Rep-string/Excel/rep-string-2.excel

@@ -0,0 +1,40 @@
+FILTERP
+=LAMBDA(p,
+    LAMBDA(xs,
+        FILTER(xs, p(xs))
+    )
+)
+
+
+INITS
+=LAMBDA(s,
+    MID(
+        s,
+        1, SEQUENCE(
+            1, 1 + LEN(s),
+            0, 1
+        )
+    )
+)
+
+
+LASTCOL
+=LAMBDA(xs,
+    IF(AND(1 = COLUMNS(xs), ISBLANK(xs)),
+        NA(),
+        INDEX(xs, 1, COLUMNS(xs))
+    )
+)
+
+
+TAILCOLS
+=LAMBDA(xs,
+    IF(1 < COLUMNS(xs),
+        INDEX(
+            xs,
+            1,
+            SEQUENCE(1, COLUMNS(xs) - 1, 2, 1)
+        ),
+        NA()
+    )
+)