結果

問題 No.1604 Swap Sort:ONE
ユーザー kyaneko999kyaneko999
提出日時 2021-07-16 21:34:25
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 83 ms / 2,000 ms
コード長 3,384 bytes
コンパイル時間 137 ms
コンパイル使用メモリ 82,304 KB
実行使用メモリ 68,992 KB
最終ジャッジ日時 2024-07-06 08:31:08
合計ジャッジ時間 2,660 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
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 52 ms
64,384 KB
testcase_01 AC 53 ms
64,384 KB
testcase_02 AC 60 ms
64,768 KB
testcase_03 AC 48 ms
64,512 KB
testcase_04 AC 53 ms
64,640 KB
testcase_05 AC 56 ms
67,584 KB
testcase_06 AC 83 ms
68,608 KB
testcase_07 AC 71 ms
68,608 KB
testcase_08 AC 75 ms
68,736 KB
testcase_09 AC 72 ms
68,608 KB
testcase_10 AC 72 ms
68,224 KB
testcase_11 AC 71 ms
68,608 KB
testcase_12 AC 71 ms
68,608 KB
testcase_13 AC 70 ms
68,864 KB
testcase_14 AC 71 ms
68,736 KB
testcase_15 AC 70 ms
68,224 KB
testcase_16 AC 71 ms
68,992 KB
testcase_17 AC 63 ms
68,736 KB
testcase_18 AC 62 ms
68,480 KB
testcase_19 AC 70 ms
68,992 KB
testcase_20 AC 63 ms
67,968 KB
testcase_21 AC 69 ms
68,864 KB
testcase_22 AC 67 ms
68,864 KB
testcase_23 AC 58 ms
67,328 KB
testcase_24 AC 57 ms
67,072 KB
testcase_25 AC 69 ms
68,608 KB
testcase_26 AC 64 ms
68,736 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,P=ilint()
P=[0]+P
where=[-1]*(N+1)
for i in range(1,N+1):
    where[P[i]]=i
ans=0
for i in range(1,N+1):
    if P[i]==i:
        continue
    while P[i]>i:
        p=P[i]
        j=where[p-1]
        P[i],P[j]=P[j],P[i]
        where[p],where[p-1]=where[p-1],where[p]
        ans+=1
print(ans)
0