結果

問題 No.1637 Easy Tree Query
ユーザー kyaneko999kyaneko999
提出日時 2021-08-06 21:29:00
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 312 ms / 2,000 ms
コード長 3,493 bytes
コンパイル時間 1,497 ms
コンパイル使用メモリ 81,580 KB
実行使用メモリ 107,324 KB
最終ジャッジ日時 2023-10-17 04:56:27
合計ジャッジ時間 10,468 ms
ジャッジサーバーID
(参考情報)
judge11 / judge13
このコードへのチャレンジ
(要ログイン)

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 56 ms
65,984 KB
testcase_01 AC 56 ms
65,984 KB
testcase_02 AC 226 ms
104,172 KB
testcase_03 AC 56 ms
66,016 KB
testcase_04 AC 194 ms
91,632 KB
testcase_05 AC 194 ms
87,788 KB
testcase_06 AC 169 ms
84,584 KB
testcase_07 AC 117 ms
78,376 KB
testcase_08 AC 168 ms
87,176 KB
testcase_09 AC 263 ms
99,096 KB
testcase_10 AC 150 ms
83,168 KB
testcase_11 AC 282 ms
101,832 KB
testcase_12 AC 251 ms
94,724 KB
testcase_13 AC 138 ms
83,508 KB
testcase_14 AC 254 ms
99,376 KB
testcase_15 AC 296 ms
101,236 KB
testcase_16 AC 296 ms
100,600 KB
testcase_17 AC 148 ms
83,296 KB
testcase_18 AC 198 ms
87,796 KB
testcase_19 AC 210 ms
89,828 KB
testcase_20 AC 246 ms
94,440 KB
testcase_21 AC 192 ms
92,080 KB
testcase_22 AC 307 ms
101,700 KB
testcase_23 AC 154 ms
84,840 KB
testcase_24 AC 193 ms
91,928 KB
testcase_25 AC 185 ms
85,732 KB
testcase_26 AC 252 ms
95,044 KB
testcase_27 AC 312 ms
103,532 KB
testcase_28 AC 178 ms
85,760 KB
testcase_29 AC 223 ms
93,652 KB
testcase_30 AC 188 ms
93,404 KB
testcase_31 AC 113 ms
77,548 KB
testcase_32 AC 171 ms
87,084 KB
testcase_33 AC 175 ms
83,276 KB
testcase_34 AC 154 ms
107,324 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

from sys import exit, stdin, setrecursionlimit
from collections import deque, defaultdict, Counter
from copy import deepcopy
from bisect import bisect_left, bisect_right, insort_left, insort_right
from heapq import heapify, heappop, heappush
from itertools import product, permutations, combinations, combinations_with_replacement
from functools import reduce
from math import gcd, sin, cos, tan, asin, acos, atan, atan2, degrees, radians, ceil, floor, sqrt, factorial
from math import pi as PI
from random import randint as rd

setrecursionlimit(500000)
INF = (1<<61)-1
EPS = 1e-10
MOD = 10**9+7
# MOD = 998244353

def input():
    return stdin.readline().strip('\n')
def intput():
    return int(input())
def minput():
    return input().split()
def linput():
    return input().split()
def mint():
    return map(int,input().split())
def lint():
    return list(map(int,input().split()))
def ilint():
    return intput(),lint()
def lcm(x,y):
    return x*y//gcd(x,y)
def lgcd(l):
    return reduce(gcd,l)
def llcm(l):
    return reduce(lcm,l)
def powmod(n,i,mod=MOD):
    return pow(n,mod-1+i,mod) if i<0 else pow(n,i,mod)
def div2(x):
    return x.bit_length()
def div10(x):
    return len(str(x))-(x==0)
def popcount(x):
    return bin(x).count('1')
def digit(x,i,max_len=None):
    s = str(x)
    if max_len:
        i -= max_len-len(s)
    return int(s[i-1]) if i>0 else 0
def digitsum(x):
    ans = 0
    for i in range(div10(x)):
        ans += digit(x,i+1)
    return ans
def pf(x,mode='counter'):
    C = Counter()
    p = 2
    while x>1:
        k = 0
        while x%p==0:
            x //= p
            k += 1
        if k>0:
            C[p] += k
        p = p+2-(p==2) if p*p<x else x
    if mode=='counter':
        return C
    S = set([1])
    for k in C:
        T = set()
        for x in S:
            for i in range(C[k]+1):
                T.add(x*(k**i))
        S = T
    if mode=='set':
        return S
    if mode=='list':
        return sorted(S)
def isprime(x):
    if x<2:
        return False
    return len(pf(x,'set'))==2
def matmul(A, B):
    # import numpy
    A1, A2 = A >> 15, A & (1 << 15) - 1
    B1, B2 = B >> 15, B & (1 << 15) - 1
    X = np.dot(A1, B1) % MOD
    Y = np.dot(A2, B2)
    Z = np.dot(A1 + A2, B1 + B2) - X - Y
    return ((X << 30) + (Z << 15) + Y) % MOD
def matpow(A, N):
    P = np.eye(A.shape[0], dtype=np.int64)
    while N:
        if N & 1:
            P = matmul(P, A)
        A = matmul(A, A)
        N >>= 1
    return P
def zash(S):
    lis = sorted(S)
    dic = {}
    for i,x in enumerate(lis):
        dic[x] = i
    return lis, dic
def pr(*x):
    print(*x, sep='', end='') if len(x) else print()
def lprint(l):
    for x in l: print(x)
def ston(c, c0='a'):
    return ord(c)-ord(c0)
def ntos(x, c0='a'):
    return chr(x+ord(c0))
def judge(x, l=['Yes', 'No']):
    print(l[0] if x else l[1])
def debug(*x, flag=1):
    if flag: print(*x)

######################################################

N,Q=mint()
node=[[] for _ in range(N+1)]
for _ in range(N-1):
    x,y=mint()
    node[x].append(y)
    node[y].append(x)
order=[]
done=[0]*(N+1)
kids=[[] for _ in range(N+1)]
q=deque()
q.append(1)
done[1]=1
while q:
    x=q.popleft()
    order.append(x)
    for y in node[x]:
        if not done[y]:
            q.append(y)
            done[y]=1
            kids[x].append(y)
cnt=[1]*(N+1)
for x in order[::-1]:
    for y in kids[x]:
        cnt[x]+=cnt[y]
S=0
for _ in range(Q):
    p,x=mint()
    S+=x*cnt[p]
    print(S)
0