2019 杭电多校 8 1003 题目链接:HDU 6659 比赛链接:2019 Multi-University Training Contest 8 Problem Description Acesrc is a famous mathematician at Nanjing University second to none. Playing with interesting numbers is his favorite. Today, he finds a manuscript whe…
UVa10025 ? 1 ? 2 ? ... ? n = k problem The problem Given the following formula, one can set operators '+' or '-' instead of each '?', in order to obtain a given k? 1 ? 2 ? ... ? n = k For example: to obtain k = 12 , the expression to be used will be:…
B. Tell Your World time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Connect the countless points with lines, till we reach the faraway yonder. There are n points on a coordinate plane, the i…