Doubt on codeforces contest

#1

my code

the problem-
https://codeforces.com/contest/1514/problem/A

I could not understand why its giving an runtimeerror on test 2 ,its a pretty simple question.

#2

you are multiplying the array element
but you need not to do so

Correct Approach

check for each element

If any element is not a perfect square, the answer is yes. Otherwise, the answer is no, because a2∗b2∗…=(a∗b∗…)2a2∗b2∗…=(a∗b∗…)2.

#3

ok .I have understood

#4

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#5

WHAT I wss doing how was that approach logically incorrect

#6

you are multiplying numbers one by one and taking square root
this will definitely leads to runtime error because of constraints

t (1≤ t ≤100) — the number of test cases.
n (1≤ n ≤100) — the length of the array a.

(1≤ ai ≤10^4) — the elements of the array a.