POJ - 3468 A Simple Problem with Integers (线段树——懒标记)(注释详解)
POJ-3468ASimpleProblemwithIntegers(模板题)(懒标记)ProblemYouhaveNintegers,A1,A2,...,AN.Youneedtodealwithtwokindsofoperations.Onetypeofoperationistoaddsomegivennumbertoeachnumberinagiveninterval.Theotheristo