結果
問題 | No.921 ずんだアロー |
ユーザー | McGregorsh |
提出日時 | 2022-07-05 23:50:10 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,048 bytes |
コンパイル時間 | 148 ms |
コンパイル使用メモリ | 82,584 KB |
実行使用メモリ | 103,948 KB |
最終ジャッジ日時 | 2024-12-17 13:26:23 |
合計ジャッジ時間 | 5,592 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 116 ms
83,128 KB |
testcase_01 | AC | 116 ms
83,624 KB |
testcase_02 | AC | 111 ms
83,100 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | AC | 117 ms
83,380 KB |
testcase_07 | AC | 117 ms
83,656 KB |
testcase_08 | AC | 113 ms
83,480 KB |
testcase_09 | AC | 114 ms
83,452 KB |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 137 ms
89,436 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | AC | 137 ms
94,200 KB |
testcase_16 | AC | 133 ms
89,748 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 153 ms
103,752 KB |
testcase_24 | WA | - |
ソースコード
import sys, re 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 from decimal import Decimal, getcontext 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 ###関数コピーしたか?### def main(): n = int(input()) a = i_list() juge = [False] * n for i in range(n-1): if a[i] == a[i+1]: juge[i] = True juge[i+1] = True nums = [] left = 0 right = 0 cou = 0 for i in range(n): if juge[i] == False and cou == 0: left = i cou += 1 if juge[i] and cou == 1: right = i-1 cou = 0 nums.append([left, right]) if len(nums) == 0: if n % 2 == 1: print(n // 2 + 1) exit() else: print(n // 2) exit() #print(nums) ans = sum(juge) for i in range(len(nums)): score = max(0, nums[i][1] - nums[i][0] - 2) ans += score // 2 print(ans) if __name__ == '__main__': main()