Miku

三分答案这东西，非常好理解

#include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
int n;
double y;
double xz=1e-7;//修正精度 
double lm,rm;
double v(double x){
    return 6*x*x*x*x*x*x*x+8*x*x*x*x*x*x+7*x*x*x+5*x*x-y*x;
}
double sf(double l,double r){
    while(l+xz<r){
        lm=l+(r-l)*0.3;//这个数随便选 
        rm=l+(r-l)*0.7;
        if(v(lm)<v(rm))
            r=rm;
        else
            l=lm;
    }
    return v(l);
}
int main(){
    cin>>n;
    for(int i=1;i<=n;++i){
        scanf("%lf",&y);
        printf("%.4lfn",sf(0.0,100.0));
    }
}