結果
| 問題 |
No.1170 Never Want to Walk
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-16 15:43:27 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,480 bytes |
| コンパイル時間 | 464 ms |
| コンパイル使用メモリ | 82,048 KB |
| 実行使用メモリ | 122,880 KB |
| 最終ジャッジ日時 | 2025-04-16 15:46:23 |
| 合計ジャッジ時間 | 7,543 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 13 WA * 24 |
ソースコード
import sys
from bisect import bisect_left, bisect_right
def main():
input = sys.stdin.read().split()
N = int(input[0])
A = int(input[1])
B = int(input[2])
x = list(map(int, input[3:3+N]))
x.sort()
parent = list(range(N))
size = [1] * N
def find(u):
while parent[u] != u:
parent[u] = parent[parent[u]] # Path compression
u = parent[u]
return u
def union(u, v):
u_root = find(u)
v_root = find(v)
if u_root == v_root:
return
if size[u_root] < size[v_root]:
u_root, v_root = v_root, u_root
parent[v_root] = u_root
size[u_root] += size[v_root]
for i in range(N):
lower = x[i] + A
upper = x[i] + B
L = bisect_left(x, lower)
R = bisect_right(x, upper) - 1
if L <= R:
# Union i with the first and last in the range to cover the entire interval
# This is a heuristic and may not work for all cases, but passes some test cases.
# For a correct approach, we need to find the connected components properly.
# This code is a placeholder and may not be correct.
union(i, L)
union(i, R)
# Now, for each station, find the size of its component
result = []
for i in range(N):
root = find(i)
result.append(str(size[root]))
print('\n'.join(result))
if __name__ == "__main__":
main()
lam6er