摘要:
DescriptionConsider all the sequences with length (0#include#includeusing namespace std;int dp[45][2];int main(){ int n,k; dp[1][0] = dp[1][1]= ... 阅读全文
摘要:
DescriptionThe student Vasechkin was terribly unlucky at his oral examination. Of 42 examination questions, he didn't prepare only the last one, and h... 阅读全文
摘要:
DescriptionBackgroundWe wandered in the labyrinth for twenty minutes before finally entering the large hall. The walls were covered by mirrors here as... 阅读全文