D - The Lucky Week Edward, the headmaster of the Marjar University, is very busy every day and always forgets the date. There was one day Edward suddenly found that if Monday was the 1st, 11th or 21st day of that month, he could remember the date cle…
题目链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3781 Time Limit: 2 Seconds Memory Limit: 65536 KB Leo has a grid with N rows and M columns. All cells are painted with either black or white initially. Two cells A and B are calle…
题目链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3780 Time Limit: 2 Seconds Memory Limit: 65536 KB Leo has a grid with N × N cells. He wants to paint each cell with a specific color (either black or white). Leo has a magical bru…
题目链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3777 Time Limit: 2 Seconds Memory Limit: 65536 KB The 11th Zhejiang Provincial Collegiate Programming Contest is coming! As a problem setter, Edward is going to arrange the order…
LIS Time Limit: 1 Second Memory Limit: 65536 KB Special Judge DreamGrid is learning the LIS (Longest Increasing Subsequence) problem and he needs to find the longest increasing subsequence of a given sequence of length . Recall that A subs…
Now Loading!!! Time Limit: 1 Second Memory Limit: 131072 KB DreamGrid has integers . DreamGrid also has queries, and each time he would like to know the value of for a given number , where , . Input There are multiple test cases. The first l…
Sequence Swapping Time Limit: 1 Second Memory Limit: 65536 KB BaoBao has just found a strange sequence {<, >, <, >, , <, >} of length in his pocket. As you can see, each element <, > in the sequence is an ordered pair, where…
