摘要： DescriptionOne day a highly important task was commissioned to Vasya — writing a program in a night. The program consists ofnlines of code. Vasya is already exhausted, so he works like that: first he writesvlines of code, drinks a cup of tea, then he writes as much aslines, drinks another cup of tea 阅读全文

摘要： DescriptionThe SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how many quadruplet (a, b, c, d ) ∈ A x B x C x D are such that a + b + c + d = 0 . In the following, we assume that all lists have the same size n .InputThe first line of the input file c 阅读全文

摘要： When a thin rod of length L is heated n degrees, it expands to a new length L'=(1+n*C)*L, where C is the coefficient of heat expansion.When a thin rod is mounted on two solid walls and then heated, it expands and takes the shape of a circular segment, the original rod being the chord of the segm 阅读全文