"""# ### 谜题描述 You are given a permutation p_1, p_2, …, p_n. In one move you can swap two adjacent values. You want to perform a minimum number of moves, such that in the end there will exist a subsegment 1,2,…, k, in other words in the end there should be an integer i, 1 ≤ i ≤ n-k+1 such that p_i = 1, p_{i+1} = 2, …, p_{i+k-1}=k. Let f(k) be the minimum number of moves that you need to make a subsegment with values 1,2,…,k appear in the permutation. You need to find f(1), f(2), …, f(n). Input The first line of input contains one integer n (1 ≤ n ≤ 200 000): the number of elements in the permutation. The next line of input contains n integers p_1, p_2, …, p_n: given permutation (1 ≤ p_i ≤ n). Output Print n integers, the minimum number of moves that you need to make a subsegment with values 1,2,…,k appear in the permutation, for k=1, 2, …, n. Examples Input 5 5 4 3 2 1 Output 0 1 3 6 10 Input 3 1 2 3 Output 0 0 0 Here is a reference code to solve this task. You can use this to help you genereate cases or validate the solution. ```python n = input() arr = map(int,raw_input().split(\" \")) trees = [0]*(1+n) dic = [0]*(n+1) ans = [0]*n def update(t,i,v): while i < len(t): t[i] += v i += lowbit(i) def lowbit(x): return x&-x def sum(t,i): ans = 0 while i>0: ans += t[i] i -= lowbit(i) return ans def getmid(arr,l1,flag): low,high = 1,n if l1%2 == 0 and flag: midv = l1/2 else: midv = l1/2+1 while low <= high: mid = (low+high)/2 ret = sum(arr,mid) if ret >= midv: high = mid-1 else: low = mid+1 return low for i in range(n): dic[arr[i]]=i+1 for i in range(1,n+1): ans[i-1] += sum(trees,n)-sum(trees,dic[i]) if i>=2: ans[i-1] += ans[i-2] update(trees,dic[i],1) visited = [0]*(1+n) mid = 0 last = 0 for i in range(1,n+1): update(visited,dic[i],1) mid = getmid(visited,i,dic[i]>mid) tt = sum(visited,dic[i]) minus = min(tt-1,i-tt) tmp = abs(dic[i]-mid-(tt-sum(visited,mid)))- minus ans[i-1] += tmp+last last = tmp+last print \" \".join(map(str,ans)) ``` 请完成上述谜题的训练场环境类实现,包括所有必要的方法。 """ from bootcamp import Basebootcamp import random from bootcamp import Basebootcamp class FenwickTree: def __init__(self, size): self.size = size self.tree = [0] * (self.size + 2) # 使用1-based索引 def update(self, index, delta): while index <= self.size: self.tree[index] += delta index += index & -index def query(self, index): res = 0 while index > 0: res += self.tree[index] index -= index & -index return res class Ckintegersbootcamp(Basebootcamp): def __init__(self, n=5): self.n = n def case_generator(self): arr = list(range(1, self.n + 1)) random.shuffle(arr) fk = self.compute_fk(arr) return { 'permutation': arr, 'answers': fk } @staticmethod def prompt_func(question_case): permutation = question_case['permutation'] n = len(permutation) prompt = ( f"给定一个长度为{n}的排列p = {permutation},计算f(1)到f({n})的值。\n" f"f(k)表示将1到k排列成连续子序列所需的最少交换次数。例如,f(1)=0,因为单个元素无需交换。\n" f"请将答案以空格分隔的形式放在[answer]和[/answer]之间,例如:[answer]0 1 3 6 10[/answer]\n" ) return prompt @staticmethod def extract_output(output): import re pattern = r'\[answer\](.*?)\[/answer\]' matches = re.findall(pattern, output) if not matches: return None answer_str = matches[-1].strip() try: answers = list(map(int, answer_str.split())) return answers except: return None @classmethod def _verify_correction(cls, solution, identity): correct_answers = identity['answers'] if len(solution) != len(correct_answers): return False return all(a == b for a, b in zip(solution, correct_answers)) def compute_fk(self, arr): n = len(arr) pos = [0] * (n + 1) # pos[i]表示元素i的位置(1-based) for idx, num in enumerate(arr): pos[num] = idx + 1 ft = FenwickTree(n) ans = [0] * n for i in range(1, n + 1): inv = ft.query(n) - ft.query(pos[i]) ans[i - 1] = inv if i >= 2: ans[i - 1] += ans[i - 2] ft.update(pos[i], 1) visited = FenwickTree(n) last = 0 for i in range(1, n + 1): visited.update(pos[i], 1) l, r = 1, n mid = 0 target = (i + 1) // 2 if i % 2 == 1 else i // 2 while l <= r: m = (l + r) // 2 cnt = visited.query(m) if cnt >= target: r = m - 1 mid = m else: l = m + 1 if l > r: mid = l tt = visited.query(mid) minus = min(tt - 1, i - tt) tmp = abs(pos[i] - mid - (tt - visited.query(mid))) - minus ans[i - 1] += tmp + last last = tmp + last return ans