結果
| 問題 | No.165 四角で囲え! |
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-09 21:01:23 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,120 bytes |
| コンパイル時間 | 300 ms |
| コンパイル使用メモリ | 82,168 KB |
| 実行使用メモリ | 78,456 KB |
| 最終ジャッジ日時 | 2025-04-09 21:03:36 |
| 合計ジャッジ時間 | 47,064 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 15 WA * 4 |
ソースコード
import bisect
def main():
import sys
input = sys.stdin.read
data = input().split()
idx = 0
N = int(data[idx])
B = int(data[idx+1])
idx += 2
points = []
for _ in range(N):
x = int(data[idx])
y = int(data[idx+1])
p = int(data[idx+2])
points.append((x, y, p))
idx += 3
# Sort by X
sorted_x = sorted(points, key=lambda point: point[0])
x_coords = [point[0] for point in sorted_x]
n = N
max_points = 0
for i in range(n + 1):
# Determine left_val and right_val for X
if i == 0:
left_val = -float('inf')
else:
left_val = sorted_x[i-1][0]
start_i = bisect.bisect_right(x_coords, left_val)
for j in range(i + 1, n + 1):
if j <= n:
right_val = sorted_x[j-1][0] if (j-1 < n) else float('inf')
else:
right_val = float('inf')
end_j = bisect.bisect_left(x_coords, right_val)
# Extract points between start_i and end_j
selected = sorted_x[start_i:end_j]
if not selected:
continue
# Sort selected points by Y
sorted_y = sorted(selected, key=lambda point: point[1])
y_list = [point[1] for point in sorted_y]
p_list = [point[2] for point in sorted_y]
# Sliding window to find maximum points with sum <= B
current_sum = 0
left = 0
current_max = 0
for right in range(len(p_list)):
current_sum += p_list[right]
while current_sum > B:
current_sum -= p_list[left]
left += 1
current_max = max(current_max, right - left + 1)
if current_max == len(p_list):
break # Can't get better than this
if current_max > max_points:
max_points = current_max
print(max_points)
if __name__ == '__main__':
main()
lam6er