1 files changed, 10 insertions, 0 deletions
diff --git a/progs/unparsable_programs/a424.py b/progs/unparsable_programs/a424.py
new file mode 100644
index 0000000..fb15cae
--- /dev/null
+++ b/progs/unparsable_programs/a424.py
@@ -0,0 +1,10 @@
+from collections import defaultdict
+def count_Substrings(s,n):
+    count,sum = 0,0
+    mp = defaultdict(lambda : 0)
+    mp[0] += 1
+    for i in range(n):
+        sum += ord(s[i]) - ord('0')
+        count += mp[sum - (i + 1)]
+        mp[sum - (i + 1)] += 1
+    return count
+\ No newline at end of file