結果
問題 | No.2289 順列ソート |
ユーザー | McGregorsh |
提出日時 | 2023-05-24 13:28:38 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 125 ms / 2,000 ms |
コード長 | 1,821 bytes |
コンパイル時間 | 159 ms |
コンパイル使用メモリ | 82,044 KB |
実行使用メモリ | 89,600 KB |
最終ジャッジ日時 | 2024-06-06 04:49:26 |
合計ジャッジ時間 | 4,329 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 120 ms
89,472 KB |
testcase_01 | AC | 120 ms
89,396 KB |
testcase_02 | AC | 125 ms
89,352 KB |
testcase_03 | AC | 122 ms
89,344 KB |
testcase_04 | AC | 119 ms
89,424 KB |
testcase_05 | AC | 119 ms
89,600 KB |
testcase_06 | AC | 118 ms
89,248 KB |
testcase_07 | AC | 121 ms
89,472 KB |
testcase_08 | AC | 121 ms
89,312 KB |
testcase_09 | AC | 120 ms
89,188 KB |
testcase_10 | AC | 123 ms
89,088 KB |
testcase_11 | AC | 118 ms
89,472 KB |
testcase_12 | AC | 121 ms
89,312 KB |
testcase_13 | AC | 118 ms
89,472 KB |
testcase_14 | AC | 118 ms
89,488 KB |
testcase_15 | AC | 119 ms
89,160 KB |
testcase_16 | AC | 122 ms
89,312 KB |
testcase_17 | AC | 120 ms
89,012 KB |
testcase_18 | AC | 119 ms
89,192 KB |
testcase_19 | AC | 121 ms
89,244 KB |
testcase_20 | AC | 121 ms
89,296 KB |
testcase_21 | AC | 120 ms
89,332 KB |
testcase_22 | AC | 120 ms
88,976 KB |
testcase_23 | AC | 125 ms
89,344 KB |
ソースコード
import sys, re from fractions import Fraction from math import ceil, floor, sqrt, pi, factorial, gcd from copy import deepcopy from collections import Counter, deque, defaultdict from heapq import heapify, heappop, heappush from itertools import accumulate, product, combinations, combinations_with_replacement, permutations from bisect import bisect, bisect_left, bisect_right from functools import reduce, lru_cache from decimal import Decimal, getcontext, ROUND_HALF_UP def i_input(): return int(input()) def i_map(): return map(int, input().split()) def i_list(): return list(i_map()) def i_row(N): return [i_input() for _ in range(N)] def i_row_list(N): return [i_list() for _ in range(N)] def s_input(): return input() def s_map(): return input().split() def s_list(): return list(s_map()) def s_row(N): return [s_input for _ in range(N)] def s_row_str(N): return [s_list() for _ in range(N)] def s_row_list(N): return [list(s_input()) for _ in range(N)] def lcm(a, b): return a * b // gcd(a, b) def get_distance(x1, y1, x2, y2): d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2) return d def rotate(table): n_fild = [] for x in zip(*table[::-1]): n_fild.append(x) return n_fild sys.setrecursionlimit(10 ** 7) INF = float('inf') MOD = 10 ** 9 + 7 MOD2 = 998244353 alpa = 'abcdefghijklmnopqrstuvwxyz' ALPA = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' #input = sys.stdin.readline def main(): N = int(input()) P = i_list() ind = [0] * (N+1) for i in range(N): ind[P[i]] = i ans = 0 for i in range(N): if P[i] != i+1: ans += 1 now = P[i] nowpoint = ind[now] nxts = ind[i+1] P[i] = i+1 P[nxts] = now ind[i+1] = i ind[now] = nxts print(ans) if __name__ == '__main__': main()