bs_interactive

Task

There's a hidden number $x$ and you are given the task to find its value using the following function:

int compare (int guess) {
	return guess > x;
}

In other words, the function returns $1$ if your guess is bigger than the number you're trying to find, $0$ otherwise.

You must only implement the solve function with the following header:

int solve()

Constraints and clarifications

• $1 \leq x \leq 1 \ 000 \ 000 \ 000$
• The problem can only be solved using C++ and you must #include "compare.h".

Example

#include "compare.h"
int solve() {
	int x = 2;
	if (compare(x))
		return 1;
	return 1'000'000'000;
}

Explanation

The sample function only gives the right answer if $x$ is $1$ or $1 \ 000 \ 000 \ 000$.