文章目录 项目启动报错1:Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway项目启动报错2:Failed to determine a suitable driver class项目启动报错3:Failed to start bean documentationPluginsBootstrapp…
题目链接
CF方向 Luogu方向
题目解法
暂时不考虑 b i b_i bi 的限制 考虑构造 a i , j i j a_{i,j}ij ai,jij, 那么 a r 1 , c 1 a r 2 , c 2 r 1 c 1 r 2 c 2 , a r 1 , c 2 a r 1 , c 2 r 1 c 2 r 2 c 1 a_{r1,c1}a_{r2,c2}r1c1r2c2,\;a_{r1,c2}…