結果

問題 No.1605 Matrix Shape
ユーザー kyaneko999kyaneko999
提出日時 2021-07-16 21:53:26
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 3,786 bytes
コンパイル時間 162 ms
コンパイル使用メモリ 82,420 KB
実行使用メモリ 130,156 KB
最終ジャッジ日時 2024-07-06 08:59:48
合計ジャッジ時間 6,831 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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
65,120 KB
testcase_01 AC 60 ms
65,728 KB
testcase_02 AC 56 ms
66,732 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 AC 57 ms
66,272 KB
testcase_06 AC 58 ms
65,532 KB
testcase_07 AC 56 ms
65,748 KB
testcase_08 AC 56 ms
66,236 KB
testcase_09 AC 58 ms
65,928 KB
testcase_10 AC 57 ms
65,760 KB
testcase_11 AC 57 ms
65,616 KB
testcase_12 AC 58 ms
65,260 KB
testcase_13 AC 57 ms
64,940 KB
testcase_14 AC 56 ms
66,296 KB
testcase_15 AC 56 ms
65,064 KB
testcase_16 AC 56 ms
64,996 KB
testcase_17 AC 56 ms
66,196 KB
testcase_18 AC 57 ms
66,516 KB
testcase_19 AC 305 ms
130,004 KB
testcase_20 AC 298 ms
102,128 KB
testcase_21 AC 294 ms
102,196 KB
testcase_22 WA -
testcase_23 AC 309 ms
129,804 KB
testcase_24 AC 293 ms
129,720 KB
testcase_25 AC 119 ms
77,908 KB
testcase_26 AC 121 ms
77,868 KB
testcase_27 AC 124 ms
77,928 KB
testcase_28 AC 123 ms
78,016 KB
testcase_29 AC 123 ms
77,620 KB
testcase_30 AC 300 ms
105,200 KB
testcase_31 AC 295 ms
105,224 KB
testcase_32 AC 255 ms
92,232 KB
testcase_33 WA -
testcase_34 WA -
testcase_35 AC 252 ms
119,864 KB
testcase_36 AC 182 ms
106,980 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
# from decimal import Decimal

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

def input():
    return stdin.readline()[:-1]
def intput():
    return int(stdin.readline())
def minput():
    return stdin.readline()[:-1].split()
def linput():
    return stdin.readline()[:-1].split()
def mint():
    return map(int,stdin.readline().split())
def lint():
    return list(map(int,stdin.readline().split()))
def ilint():
    return int(stdin.readline()), list(map(int,stdin.readline().split()))
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=intput()
head=Counter()
tail=Counter()
gomih=Counter()
gomit=Counter()
kind=set()
for _  in range(N):
    h,w=mint()
    if h!=w:
        head[h]+=1
        tail[w]+=1
    else:
        gomih[h]=1
        gomit[w]=1
    kind.add(h)
for k in gomih.keys():
    tmp=min(gomih[k],tail[k])
    gomih[k]-=tmp
    tail[k]-=tmp
for k in gomit.keys():
    tmp=min(head[k],gomit[k])
    head[k]-=tmp
    gomit[k]-=tmp
for k in head.keys():
    tmp=min(head[k],tail[k])
    head[k]-=tmp
    tail[k]-=tmp
S=sum(head.values())+sum(gomih.values())
for k in gomih.keys():
    if gomih[k]>0 and gomit[k]>0:
        print(0)
        exit()
if S==0:
    print(len(kind))
elif S==1:
    print(1)
else:
    print(0)
0