用函数实现等级映射multiset打表比对include<bits/stdc++.h>usingnamespacestd;constintN=10010;intfun(intn){if(n>=85)return5;elseif(n>=45)return4;elseif(n>=25)return3;elseif(n>=1)return2;elsereturn1;}intmain(){multiset