there task follow structure give model operation use operation achive goal one way create new task use model operation change goallet try I create follow task topcoder SRM 557 div1hard give n integer x1x2xn you allow perform assignment want follow form xi xj original task j different task allow equal j the goal maximize sum xiNow change goal you give n integer y1y2yn you x1x2xn exactly equal y1y2yn in word number xi equal yi