1.什么是RUP: Rational Unified Process(以下简称RUP) 是一套软件工程方法,主要由 Ivar Jacobson的 The Objectory Approch 和 The Rational Approch发展而来。同时,它又是文档化的软件工程产品,所有RUP的实…
You are given a chessboard of size nnnn. It is filled with numbers from 11 to n2n2 in the following way: the first ⌈n22⌉⌈n22⌉ numbers from 11 to ⌈n22⌉⌈n22⌉ are written in the cells with even sum of coordinates from left to right from top to bottom.…
Description
Given an n∗mn∗m chessboard with some marked squares, your task is to place as few queens as possible to guard (attack or occupy) all marked squares. Below is a solution to an 8∗8 board with every square marked. Note that queens can be place…