- 龙凤苑中学B班4.18
成绩
-
lfy49
LV 2
@
2024-4-27 17:19:03
#include<iostream>
using namespace std;
int main(){
int a,b,c;
cin>>a>>b>>c;
cout<<a*0.2+b*0.3+c*0.5;
return 0;
}
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