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 279 ms
コンパイル使用メモリ 87,056 KB
実行使用メモリ 138,284 KB
最終ジャッジ日時 2023-09-20 13:36:36
合計ジャッジ時間 11,381 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 142 ms
78,084 KB
testcase_01 AC 141 ms
77,864 KB
testcase_02 AC 139 ms
77,800 KB
testcase_03 WA -
testcase_04 WA -
testcase_05 AC 142 ms
78,064 KB
testcase_06 AC 144 ms
77,932 KB
testcase_07 AC 148 ms
78,112 KB
testcase_08 AC 146 ms
78,120 KB
testcase_09 AC 144 ms
77,948 KB
testcase_10 AC 141 ms
78,300 KB
testcase_11 AC 142 ms
77,968 KB
testcase_12 AC 143 ms
78,168 KB
testcase_13 AC 143 ms
78,300 KB
testcase_14 AC 144 ms
78,124 KB
testcase_15 AC 148 ms
78,088 KB
testcase_16 AC 146 ms
78,016 KB
testcase_17 AC 151 ms
78,248 KB
testcase_18 AC 144 ms
77,940 KB
testcase_19 AC 424 ms
137,736 KB
testcase_20 AC 381 ms
106,152 KB
testcase_21 AC 384 ms
106,080 KB
testcase_22 WA -
testcase_23 AC 408 ms
137,644 KB
testcase_24 AC 411 ms
137,656 KB
testcase_25 AC 202 ms
79,792 KB
testcase_26 AC 207 ms
79,684 KB
testcase_27 AC 208 ms
79,988 KB
testcase_28 WA -
testcase_29 AC 209 ms
79,612 KB
testcase_30 AC 408 ms
106,512 KB
testcase_31 AC 387 ms
106,404 KB
testcase_32 WA -
testcase_33 WA -
testcase_34 WA -
testcase_35 AC 339 ms
121,228 KB
testcase_36 AC 262 ms
107,536 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