Submission #2150635
Source Code Expand
#include<bits/stdc++.h>
using namespace std;
using Int = long long;
//INSERT ABOVE HERE
double ask(double t){
double y;
printf("? %.12f\n", t); fflush(stdout);
scanf("%lf", &y);
return t;
}
void ans(double h,double v,double g){
printf("! %.12f %.12f %.12f\n", h, v, g); fflush(stdout);
exit(0);
}
signed main(){
double h=ask(0);
double y1=(ask(1)-h)*2;
double y2=ask(2)-h;
double g=y1-y2;
double v=(y1+g)/sqrt(2);
ans(h,v,g);
return 0;
}