結果
問題 | No.2242 Cities and Teleporters |
ユーザー |
![]() |
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()