xuanweiace的博客

在第一行我们写上一个0。接下来的每一行，将前一行中的0替换为01，1替换为10。 给定行数N和序数K，返回第N行中第K个字符。（K从1开始） 输入格式: 输入在一行中给出2个整数N和K。 N的范围[1,30]K的范围[1,2(N−1)] 输出格式: 对每一组输入，在一行中输出第N行中第K个字符。 输入样例1: 1 1 结尾无空行 输出样例1: 0 结尾无空行 输入样例2: 2 1 结尾无空行 输出样例2: 0 结尾无空行 输入样例3: 2 2 结尾无空行 .

题干： One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence ``DAABEC'', this measure is ...

题干： Jon fought bravely to rescue the wildlings who were attacked by the white-walkers at Hardhome. On his arrival, Sam tells him that he wants to go to Oldtown to train at the Citadel to become a mae...

题干： 链接：https://ac.nowcoder.com/acm/contest/883/G 来源：牛客网 Summer vacation is coming and Mark has returned home from his university having successfully survived the exam week. Today, he is very bored...