#include <bits/stdc++.h>
#include "books.h"
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::steady_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif
struct custom_hash {
static uint64_t splitmix64(uint64_t x) {
x += 0x9e3779b97f4a7c15;
x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const {
static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
return splitmix64(x + FIXED_RANDOM);
}
};
//
// --- 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.
//
const int MAXN = 1e5 + 7;
int n, k;
ll a[MAXN];
ll A;
ll Get(int ind){
if(a[ind] != 0){
return a[ind];
}
a[ind] = skim(ind);
return a[ind];
}
void solve(int N, int K, long long nA, int S) {
n = N;
k = K;
A = nA;
vi used(n + 1, 0);
ll sum = 0LL;
for(int i = 1; i <= k; i++){
used[i] = 1;
sum += Get(i);
}
if(sum > 2 * A){
impossible();
return;
}
if(sum >= A){
vi ans = {};
for(int i = 1; i <= k; i++){
ans.pb(i);
}
answer(ans);
return;
}
int f = n;
for(int i = k; i >= 1; i--){
int l = i;
int p = f;
int s;
while(l < p){
s = (l + p + 1) / 2;
ll x = Get(s);
if(sum - a[i] + x <= 2 * A){
l = s;
}else{
p = s - 1;
}
}
used[i] = 0;
sum -= a[i];
used[l] = 1;
sum += a[l];
if(sum >= A){
vi ans = {};
for(int i = 1; i <= n; i++){
if(used[i]){
ans.pb(i);
}
}
answer(ans);
return;
}
f = l - 1;
}
impossible();
}
