Submission #983676

---

Source Code Expand

import std.stdio;
import std.string;
import std.algorithm;
import std.array;
import std.regex;
import std.random;
import std.range;
import std.conv;
import std.math;

int a, b, c;

real f(real t)
{
  return a * t + b * sin(c * PI * t) - 100;
}

real g(real t)
{
  return a + b * c * PI * cos(c * PI * t);
}

void main()
{
  auto arg = readln.chomp.split.map!(to!int);
  a = arg[0];
  b = arg[1];
  c = arg[2];
  real t = cast(real)100 / a;
  for (int i = 0; i < 1000000; ++i) {
    t = t - f(t) / g(t);
  }
  writefln("%.10f\n", t);
}

Submission Info

Judge Result