#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif
#ifdef tabr
function<int(int)> use_detector;
#else
#include "routers.h"
#endif
vector<int> find_routers(int l, int n, int) {
vector<int> a(n - 1);
map<int, int> mp;
auto Ask = [&](int x) {
if (!mp.count(x)) {
mp[x] = use_detector(x);
}
return mp[x];
};
for (int i = 0; i < n - 1; i++) {
int low = 0;
int high = l;
while (high - low > 1) {
int mid = (high + low) >> 1;
if (Ask(mid) <= i) {
low = mid;
} else {
high = mid;
}
}
a[i] = low;
}
vector<int> ans(n);
for (int i = 1; i < n; i++) {
ans[i] = 2 * a[i - 1] - ans[i - 1];
}
return ans;
}
#ifdef tabr
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n = 5;
int l = 30;
vector<int> a = {0, 2, 4, 18, 28};
use_detector = [&](int x) {
int ans = 0;
for (int i = 0; i < n; i++) {
if (abs(a[i] - x) < abs(a[ans] - x)) {
ans = i;
}
}
return ans;
};
debug(find_routers(l, n, 0));
return 0;
}
#endif
