結果

問題 No.1605 Matrix Shape
ユーザー kyaneko999kyaneko999
提出日時 2021-07-16 21:49:59
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 3,699 bytes
コンパイル時間 165 ms
コンパイル使用メモリ 82,304 KB
実行使用メモリ 130,092 KB
最終ジャッジ日時 2024-07-06 08:52:36
合計ジャッジ時間 5,799 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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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 52 ms
64,640 KB
testcase_01 AC 54 ms
64,840 KB
testcase_02 AC 56 ms
64,896 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 AC 51 ms
65,152 KB
testcase_06 AC 50 ms
64,896 KB
testcase_07 AC 51 ms
64,760 KB
testcase_08 AC 51 ms
64,896 KB
testcase_09 AC 52 ms
64,768 KB
testcase_10 AC 53 ms
64,768 KB
testcase_11 AC 57 ms
64,768 KB
testcase_12 AC 56 ms
65,280 KB
testcase_13 AC 53 ms
65,140 KB
testcase_14 AC 51 ms
64,896 KB
testcase_15 AC 51 ms
64,896 KB
testcase_16 AC 51 ms
65,024 KB
testcase_17 AC 51 ms
64,512 KB
testcase_18 AC 52 ms
64,768 KB
testcase_19 AC 243 ms
129,592 KB
testcase_20 AC 227 ms
102,576 KB
testcase_21 AC 229 ms
102,272 KB
testcase_22 WA -
testcase_23 AC 249 ms
129,732 KB
testcase_24 AC 240 ms
129,728 KB
testcase_25 AC 112 ms
78,208 KB
testcase_26 AC 115 ms
77,804 KB
testcase_27 AC 114 ms
77,696 KB
testcase_28 WA -
testcase_29 AC 113 ms
77,696 KB
testcase_30 AC 227 ms
105,068 KB
testcase_31 AC 230 ms
105,208 KB
testcase_32 WA -
testcase_33 WA -
testcase_34 WA -
testcase_35 AC 198 ms
119,552 KB
testcase_36 AC 156 ms
106,752 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())
if S==0:
    print(len(kind))
elif S==1:
    print(1)
else:
    print(0)
0