wangjingxi_ @ 2024-07-28 19:41:56
#include<bits/stdc++.h>
using namespace std;
double a[10]={28.9,32.7,45.6,78,35,86.2,27.8,43,56,65};
int main()
{
double x,ans=0;
for(int i=1;i<=10;i++){
cin>>x;
ans+=a[i-1]*x;
}
cout<<ans;
}by jntmhh @ 2024-07-28 19:44:08
用printf行吗（不知道行不行）
by jntmhh @ 2024-07-28 19:44:31
@wangjingxi_
by jntmhh @ 2024-07-28 19:46:34
是 #5wa了吗
by wangjingxi_ @ 2024-07-28 19:47:32
啊？过了？谁能解释一下？
by jntmhh @ 2024-07-28 19:48:02
我也不知道
by jntmhh @ 2024-07-28 19:48:55
精确到小数点后一位 @wangjingxi_
by jntmhh @ 2024-07-28 19:49:33
cout应该是四舍五入吧
by wangjingxi_ @ 2024-07-29 08:28:40
6
by wangjingxi_ @ 2024-07-29 08:28:55
关了
by Shenyufan13 @ 2024-08-10 22:06:23
#include<bits/stdc++.h>
using namespace std;
double a[10]={28.9,32.7,45.6,78,35,86.2,27.8,43,56,65};
int main()
{
double x,ans=0;
for(int i=1;i<=10;i++){
cin>>x;
ans+=a[i-1]*x;
}
cout<<fixed<<setprecision(1)<<ans;
}把你代码改了改，A了，求关~(你的关我要定了)~