結果

問題 No.1605 Matrix Shape
ユーザー kyaneko999kyaneko999
提出日時 2021-07-16 21:50:55
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 3,697 bytes
コンパイル時間 441 ms
コンパイル使用メモリ 87,192 KB
実行使用メモリ 138,200 KB
最終ジャッジ日時 2023-09-20 13:38:47
合計ジャッジ時間 11,268 ms
ジャッジサーバーID
(参考情報)
judge15 / judge14
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 148 ms
78,412 KB
testcase_01 AC 146 ms
78,216 KB
testcase_02 AC 150 ms
78,188 KB
testcase_03 AC 146 ms
78,412 KB
testcase_04 WA -
testcase_05 AC 148 ms
78,492 KB
testcase_06 AC 148 ms
78,412 KB
testcase_07 AC 148 ms
78,392 KB
testcase_08 AC 144 ms
78,360 KB
testcase_09 AC 150 ms
78,196 KB
testcase_10 AC 149 ms
78,312 KB
testcase_11 AC 149 ms
78,332 KB
testcase_12 AC 150 ms
78,592 KB
testcase_13 AC 151 ms
78,444 KB
testcase_14 AC 150 ms
78,184 KB
testcase_15 AC 148 ms
78,436 KB
testcase_16 AC 148 ms
78,192 KB
testcase_17 AC 148 ms
78,440 KB
testcase_18 AC 154 ms
78,440 KB
testcase_19 AC 413 ms
138,044 KB
testcase_20 AC 381 ms
106,276 KB
testcase_21 AC 394 ms
106,532 KB
testcase_22 WA -
testcase_23 AC 422 ms
137,976 KB
testcase_24 AC 409 ms
138,200 KB
testcase_25 AC 205 ms
79,788 KB
testcase_26 AC 210 ms
80,028 KB
testcase_27 AC 207 ms
80,240 KB
testcase_28 WA -
testcase_29 AC 206 ms
79,820 KB
testcase_30 AC 392 ms
106,664 KB
testcase_31 AC 384 ms
106,472 KB
testcase_32 AC 335 ms
93,236 KB
testcase_33 WA -
testcase_34 AC 197 ms
79,920 KB
testcase_35 AC 340 ms
121,408 KB
testcase_36 AC 265 ms
107,764 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