Что думаешь? Оцени!
// 本地测试示例：head = [2,1,5] → 输出 [5,5,0]
，更多细节参见旺商聊官方下载
But e-bikes containing lithium-ion batteries are a newer challenge. "When a battery fails, it doesn't necessarily ignite, it will often produce some off-gases," says Stephen Welch, senior lecturer at the University of Edinburgh's Fire Research Centre. "Those off-gases are toxic and flammable. If they accumulate, you can have an explosion risk."
"We've got to get those astronauts to the Moon and then back again, completely safely," says Cleaver.
10 of the weirdest little freaks in Pokémon history