codeforces#P1550A. Find The Array

Find The Array

Description

Let's call an array $a$ consisting of $n$ positive (greater than $0$) integers beautiful if the following condition is held for every $i$ from $1$ to $n$: either $a_i = 1$, or at least one of the numbers $a_i - 1$ and $a_i - 2$ exists in the array as well.

For example:

  • the array $[5, 3, 1]$ is beautiful: for $a_1$, the number $a_1 - 2 = 3$ exists in the array; for $a_2$, the number $a_2 - 2 = 1$ exists in the array; for $a_3$, the condition $a_3 = 1$ holds;
  • the array $[1, 2, 2, 2, 2]$ is beautiful: for $a_1$, the condition $a_1 = 1$ holds; for every other number $a_i$, the number $a_i - 1 = 1$ exists in the array;
  • the array $[1, 4]$ is not beautiful: for $a_2$, neither $a_2 - 2 = 2$ nor $a_2 - 1 = 3$ exists in the array, and $a_2 \ne 1$;
  • the array $[2]$ is not beautiful: for $a_1$, neither $a_1 - 1 = 1$ nor $a_1 - 2 = 0$ exists in the array, and $a_1 \ne 1$;
  • the array $[2, 1, 3]$ is beautiful: for $a_1$, the number $a_1 - 1 = 1$ exists in the array; for $a_2$, the condition $a_2 = 1$ holds; for $a_3$, the number $a_3 - 2 = 1$ exists in the array.

You are given a positive integer $s$. Find the minimum possible size of a beautiful array with the sum of elements equal to $s$.

The first line contains one integer $t$ ($1 \le t \le 5000$) — the number of test cases.

Then $t$ lines follow, the $i$-th line contains one integer $s$ ($1 \le s \le 5000$) for the $i$-th test case.

Print $t$ integers, the $i$-th integer should be the answer for the $i$-th testcase: the minimum possible size of a beautiful array with the sum of elements equal to $s$.

Input

The first line contains one integer $t$ ($1 \le t \le 5000$) — the number of test cases.

Then $t$ lines follow, the $i$-th line contains one integer $s$ ($1 \le s \le 5000$) for the $i$-th test case.

Output

Print $t$ integers, the $i$-th integer should be the answer for the $i$-th testcase: the minimum possible size of a beautiful array with the sum of elements equal to $s$.

Samples

4
1
8
7
42
1
3
3
7

Note

Consider the example test:

  1. in the first test case, the array $[1]$ meets all conditions;
  2. in the second test case, the array $[3, 4, 1]$ meets all conditions;
  3. in the third test case, the array $[1, 2, 4]$ meets all conditions;
  4. in the fourth test case, the array $[1, 4, 6, 8, 10, 2, 11]$ meets all conditions.