From 076d274201c2130c3d40529bfa5cd8645caa6a5c Mon Sep 17 00:00:00 2001
From: Indra Adhikary <43936212+IndraAdhikary@users.noreply.github.com>
Date: Thu, 1 Oct 2020 00:17:46 +0530
Subject: [PATCH] Create GCDOPS.py

---
 GCDOPS.py | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 GCDOPS.py

diff --git a/GCDOPS.py b/GCDOPS.py
new file mode 100644
index 0000000..786246b
--- /dev/null
+++ b/GCDOPS.py
@@ -0,0 +1,11 @@
+for _ in range(int(input())):
+    n = int(input())
+    l = list(map(int,input().split()))
+    for i in range(n):
+        if l[i]>0 and (i+1)%l[i]==0 and l[i]<=(i+1):
+            continue
+        else:
+            print('NO')
+            break
+    else:
+        print('YES')