Create DefaultDict Tutorial

Author: MONICARAVI

DefaultDict Tutorial

@@ -0,0 +1,15 @@
+from collections import defaultdict
+d = defaultdict(list)
+n,m = map(int,input().split())
+for i in range(n):
+    letter = input()
+    d[letter].append(1+i)
+
+for i in range(m):
+    query = input()
+    if query not in d.keys():
+        print(-1)
+    else:
+        for i in d[query]:
+            print(i,end=' ')
+        print()