electicode Platform

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

// Find first position where check() is true
int binary_search(int lo, int hi) {
    while (lo < hi) {
        int mid = lo + (hi - lo) / 2;
        if (check(mid)) hi = mid;
        else lo = mid + 1;
    }
    return lo;
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    return 0;
}