T = int(input())
for _ in range(T):
    D = int(input())

    h, s = 0, D

    j = 0
    c = 1
    while(h != s):
        if h + 1 <= s:
            h+=1
            j+=1
            # print('H',h)
        if s - c >= h:
            s-=c
            c+=1
            j+=1
            # print('S', s)

    print(j)