matrix Problem Description Given a matrix with n rows and m columns ( n+m is an odd number ), at first , you begin with the number at top-left corner (1,1) and you want to go to the number at bottom-right corner (n,m). And you must go right or go dow…
sequence2 Problem Description Given an integer array bi with a length of n, please tell me how many exactly different increasing subsequences. P.S. A subsequence bai(1≤i≤k) is an increasing subsequence of sequence bi(1≤i≤n) if and only if 1≤a1<a2<..…
sequence1 Given an array a with length n, could you tell me how many pairs (i,j) ( i < j ) for abs(ai−aj) mod b=c. Input Several test cases(about 5) For each cases, first come 3 integers, n,b,c(1≤n≤100,0≤c<b≤109) Then follows n integers ai(0≤ai≤1…
Baby Ming and Weight lifting Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 681 Accepted Submission(s): 280 Problem Description Baby Ming is fond of weight lifting. He has a barbell pole(the…
tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 863 Accepted Submission(s): 409 Problem Description There is a tree(the tree is a connected graph which contains n points and n−1 edges),t…
HDOJ5054 Alice and Bob Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 302 Accepted Submission(s): 229 Problem Description Bob and Alice got separated in the Square, they agreed that if they…
