結果
問題 | No.2427 Tree Distance Two |
ユーザー | mono_0812 |
提出日時 | 2023-08-18 21:39:59 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 731 ms / 2,000 ms |
コード長 | 3,222 bytes |
コンパイル時間 | 662 ms |
コンパイル使用メモリ | 81,920 KB |
実行使用メモリ | 144,512 KB |
最終ジャッジ日時 | 2024-11-28 06:13:06 |
合計ジャッジ時間 | 16,039 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 135 ms
93,056 KB |
testcase_01 | AC | 140 ms
92,928 KB |
testcase_02 | AC | 138 ms
93,056 KB |
testcase_03 | AC | 731 ms
127,488 KB |
testcase_04 | AC | 140 ms
92,928 KB |
testcase_05 | AC | 731 ms
127,488 KB |
testcase_06 | AC | 136 ms
92,544 KB |
testcase_07 | AC | 619 ms
144,512 KB |
testcase_08 | AC | 661 ms
142,592 KB |
testcase_09 | AC | 596 ms
142,592 KB |
testcase_10 | AC | 635 ms
143,616 KB |
testcase_11 | AC | 664 ms
141,824 KB |
testcase_12 | AC | 662 ms
139,392 KB |
testcase_13 | AC | 687 ms
135,552 KB |
testcase_14 | AC | 397 ms
125,952 KB |
testcase_15 | AC | 136 ms
93,056 KB |
testcase_16 | AC | 143 ms
93,056 KB |
testcase_17 | AC | 145 ms
92,416 KB |
testcase_18 | AC | 140 ms
92,544 KB |
testcase_19 | AC | 140 ms
93,056 KB |
testcase_20 | AC | 186 ms
94,080 KB |
testcase_21 | AC | 193 ms
94,080 KB |
testcase_22 | AC | 174 ms
93,952 KB |
testcase_23 | AC | 176 ms
93,568 KB |
testcase_24 | AC | 190 ms
94,080 KB |
testcase_25 | AC | 285 ms
101,504 KB |
testcase_26 | AC | 480 ms
114,304 KB |
testcase_27 | AC | 377 ms
107,648 KB |
testcase_28 | AC | 681 ms
124,672 KB |
testcase_29 | AC | 639 ms
120,832 KB |
testcase_30 | AC | 515 ms
113,280 KB |
testcase_31 | AC | 365 ms
105,984 KB |
testcase_32 | AC | 495 ms
113,152 KB |
testcase_33 | AC | 479 ms
110,460 KB |
testcase_34 | AC | 288 ms
98,048 KB |
ソースコード
############################################################################################ import bisect,collections,copy,heapq,itertools,math,string,sys,queue,time,random from decimal import Decimal def I(): return input() def IS(): return input().split() def II(): return int(input()) def IIS(): return list(map(int,input().split())) def LIIS(): return list(map(int,input().split())) def make_divisors(n): lower_divisors , upper_divisors = [], [] i = 1 while i*i <= n: if n % i == 0: lower_divisors.append(i) if i != n // i: upper_divisors.append(n//i) i += 1 return lower_divisors + upper_divisors[::-1] import math def prime_numbers(n): prime = [True for i in range(n+1)] prime[0] = False prime[1] = False sqrt_n = math.ceil(math.sqrt(n)) for i in range(2, sqrt_n): if prime[i]: for j in range(2*i, n+1, i): prime[j] = False numbers=[] for i in range(2,n+1): if prime[i]: numbers.append(i) return numbers def factorization(n): arr = [] temp = n for i in range(2, int(-(-n**0.5//1))+1): if temp%i==0: cnt=0 while temp%i==0: cnt+=1 temp //= i arr.append([i, cnt]) if temp!=1: arr.append([temp, 1]) if arr==[] and n>1: arr.append([n, 1]) return arr from collections import defaultdict class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x def size(self, x): return -self.parents[self.find(x)] def same(self, x, y): return self.find(x) == self.find(y) def members(self, x): root = self.find(x) return [i for i in range(self.n) if self.find(i) == root] def roots(self): return [i for i, x in enumerate(self.parents) if x < 0] def group_count(self): return len(self.roots()) def all_group_members(self): group_members = defaultdict(list) for member in range(self.n): group_members[self.find(member)].append(member) return group_members def __str__(self): return '\n'.join(f'{r}: {m}' for r, m in self.all_group_members().items()) INF=10**18 MOD=998244353 MOD2=10**9+7 sys.setrecursionlimit(500005) def bit_count(x): return bin(x).count("1") def yesno(f): if f:print("Yes") else:print("No") dxy=((1,0),(0,-1),(-1,0),(0,1)) ################################################################## n=II() path=[[] for i in range(n)] for i in range(n-1): u,v=IIS() path[u-1].append(v-1) path[v-1].append(u-1) for i in range(n): res=0 for j in path[i]: res+=len(path[j])-1 print(res)