AT this problem https://codeforces.net/gym/102470/problem/A (short statment below)
after three days of coding to avoid runtime error I get TLE on a binary search solution can someone explain what is wrong with my solution

the short statement : You are given set of points (x,y) find point on (y = 0) which all point can go to this point in minimum time and all have the same speed which is one meter per second

my code : https://codeforces.net/contest/1445/submission/98270485 (the code has comments :)