#include <bits/stdc++.h>
#include "books.h"
using namespace std;
//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
// books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
// g++ books_sample.cpp sample_grader.cpp
// in this folder.
//
void solve(int N, int K, long long A, int S) {
// TODO implement this function
int ub = (2 * A) / K;
int lb = (A + K - 1) / K;
int l = 1, r = N, m;
while (l < r) {
m = (l + r + 1) / 2;
int o = skim(m);
if (o < ub) {
l = m;
} else if (o > ub) {
r = m - 1;
} else {
l = m;
break;
}
}
int ubi = l;
l = 1, r = N;
while (l < r) {
m = (l + r) / 2;
int o = skim(m);
if (o < lb) {
l = m + 1;
} else if (o > lb) {
r = m;
} else {
r = m;
break;
}
}
int lbi = r;
if (ubi - lbi + 1 >= K) {
vector<int> books(K, 0);
for (int i = 0; i < K; ++i) {
books[i] = i + lbi;
}
answer(books);
} else {
impossible();
}
}
