from math import sqrt, floor


def is_sqrt_floor(n: int, x: int) -> bool:
    if x < 0:
        return False
    return (x+1) ** 2 > n >= x**2


def main():
    T = int(input())
    for _ in range(T):
        N = int(input())
        floor_candidate = floor(sqrt(N))
        for diff in range(-1, 3):
            if is_sqrt_floor(N, floor_candidate+diff):
                print(floor_candidate+diff)
                break
        else:
            raise ValueError


if __name__ == "__main__":
    main()