[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 显然10000..取到之后 再取一个01111..就能异或成最大的数字了. [代码] /* 1.Shoud it use long long ? 2.Have you ever test several sample(at least therr) yourself? 3.Can you promise that the solution is right? At least,the main ideal 4.use the p…