CF1809B.Points on Plane

普及/提高-

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题目描述

You are given a two-dimensional plane, and you need to place nn chips on it.

You can place a chip only at a point with integer coordinates. The cost of placing a chip at the point (x,y)(x, y) is equal to x+y|x| + |y| (where a|a| is the absolute value of aa ).

The cost of placing nn chips is equal to the maximum among the costs of each chip.

You need to place nn chips on the plane in such a way that the Euclidean distance between each pair of chips is strictly greater than 11 , and the cost is the minimum possible.

输入格式

The first line contains one integer tt ( 1t1041 \le t \le 10^4 ) — the number of test cases. Next tt cases follow.

The first and only line of each test case contains one integer nn ( 1n10181 \le n \le 10^{18} ) — the number of chips you need to place.

输出格式

For each test case, print a single integer — the minimum cost to place nn chips if the distance between each pair of chips must be strictly greater than 11 .

输入输出样例

  • 输入#1

    4
    1
    3
    5
    975461057789971042

    输出#1

    0
    1
    2
    987654321

说明/提示

In the first test case, you can place the only chip at point (0,0)(0, 0) with total cost equal to 0+0=00 + 0 = 0 .

In the second test case, you can, for example, place chips at points (1,0)(-1, 0) , (0,1)(0, 1) and (1,0)(1, 0) with costs 1+0=1|-1| + |0| = 1 , 0+1=1|0| + |1| = 1 and 0+1=1|0| + |1| = 1 . Distance between each pair of chips is greater than 11 (for example, distance between (1,0)(-1, 0) and (0,1)(0, 1) is equal to 2\sqrt{2} ). The total cost is equal to max(1,1,1)=1\max(1, 1, 1) = 1 .

In the third test case, you can, for example, place chips at points (1,1)(-1, -1) , (1,1)(-1, 1) , (1,1)(1, 1) , (0,0)(0, 0) and (0,2)(0, 2) . The total cost is equal to max(2,2,2,0,2)=2\max(2, 2, 2, 0, 2) = 2 .

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