rt，一本通$1238$我闲得无聊暴力搜了一波，然后没过，求调/wul

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main()
{
    double x1,x2,x3;
    double a,b,c,d;cin>>a>>b>>c>>d;
    double i=-100;
    while((a*i*i*i+b*i*i+c*i+d)!=0)i+=0.01;
    x1=i;i+=1;
    while((a*i*i*i+b*i*i+c*i+d)!=0)i+=0.01;
    x2=i;i+=1;
    while((a*i*i*i+b*i*i+c*i+d)!=0)i+=0.01;
    x3=i;i+=1;
    printf("%.2lf %.2lf %.2lf\n",x1,x2,x3);
    return 0;
}