結果
| 問題 |
No.2242 Cities and Teleporters
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 18:02:31 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,837 bytes |
| コンパイル時間 | 364 ms |
| コンパイル使用メモリ | 82,264 KB |
| 実行使用メモリ | 198,260 KB |
| 最終ジャッジ日時 | 2025-06-12 18:02:39 |
| 合計ジャッジ時間 | 8,444 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 5 TLE * 1 -- * 20 |
ソースコード
import bisect
def main():
import sys
input = sys.stdin.read
data = input().split()
ptr = 0
n = int(data[ptr])
ptr += 1
H = list(map(int, data[ptr:ptr + n]))
ptr += n
T = list(map(int, data[ptr:ptr + n]))
ptr += n
# Sort cities by H, then by T (though T's order doesn't matter for sorting)
cities = sorted(zip(H, T), key=lambda x: x[0])
sorted_H = [h for h, t in cities]
sorted_T = [t for h, t in cities]
# Precompute max_T_prefix
max_T_prefix = []
current_max = 0
for t in sorted_T:
current_max = max(current_max, t)
max_T_prefix.append(current_max)
q = int(data[ptr])
ptr += 1
output = []
for _ in range(q):
A = int(data[ptr]) - 1 # Convert to 0-based index
B = int(data[ptr + 1]) - 1
ptr += 2
H_B = H[B]
T_A = T[A]
if H_B <= T_A:
output.append('1')
continue
current_M = T_A
if current_M >= H_B:
output.append('1')
continue
prev_M = current_M
steps_needed = 0
found = False
while True:
steps_needed += 1
# Find the largest index where H <= prev_M
idx = bisect.bisect_right(sorted_H, prev_M) - 1
if idx >= 0:
next_M = max_T_prefix[idx]
else:
next_M = 0
if next_M >= H_B:
output.append(str(steps_needed + 1))
found = True
break
if next_M == prev_M:
output.append('-1')
found = True
break
prev_M = next_M
print('\n'.join(output))
if __name__ == "__main__":
main()
gew1fw