import math
T = int(input())
N = [int(input()) for _ in range(T)]
for n in N:
    a = int(math.sqrt(n))
    ans = 0
    for i in range(5):
        if (a-i)*(a-i)<=n:
            ans=max(ans, a-i)
        if (a+i)*(a+i)<=n:
            ans=max(ans, a+i)
    print(ans)