Problem Description These days, I am thinking about a question, how can I get a problem as easy as

Problem Description Given a sequence a[1],a[2],a[3]……a[n], your job is to calculate the max sum of a sub-sequence. For example, given (6,-1,5,4,-7), the max s...

Problem Description Given a sequence 1,2,3,……N, your job is to calculate all the possible sub-sequences that the sum of the sub-sequence is M.

Problem Description There are some students in a class, Can you help teacher find the highest student .

Problem Description There must be many A + B problems in our HDOJ , now a new one is coming. Giv

Problem Description we define f(A) = 1, f(a) = -1, f(B) = 2, f(b) = -2, … f(Z) = 26, f(z) = -26; Give you a letter x and a number y , you should output the ...

Problem Description Give you two numbers A and B, if A is equal to B, you should print “YES”, or print “NO”.

Problem Description Give you the width and height of the rectangle,darw it.

Problem Description Give you a number on base ten,you should output it on base two.(0 < n < 1000)

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