#include <cstdio>
#include <vector>
#include <cassert>
#include <bits/stdc++.h>
#include "molecules.h"
#define maxn 200005
using namespace std;
typedef long long ll;
int n;
ll pref[maxn];
ll suff[maxn];
int a,b;
bool dobar(ll x){
if(x >=a && x<=b)return 1;
return 0;
}
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
sort(w.begin(), w.end());
n = w.size();
ll tren = 0;
a = l;
b = u;
for(int i=0; i<n; i++){
tren += w[i];
pref[i + 1] = tren;
}
if(dobar(pref[n])){
vector<int> rez;
for(int i=0; i<n; i++)rez.push_back(i);
return rez;
}
vector<int>v;
if(pref[n] < l)return v;
tren = 0;
for(int i=n-1; i>=0; i--){
tren += w[i];
suff[n - i] = tren;
}
int levo = n,d = 0;
bool ima = 0;
for(int i=0; i<=n; i++){
ll sum = suff[i];
d = i;
if(sum > u)break;
if(dobar(sum + pref[levo])){
ima = 1;
break;
}
while(sum + pref[levo] > u){
if(dobar(sum + pref[levo])){
ima = 1;
break;
}
levo--;
}
if(ima)break;
if(dobar(sum + pref[levo])){
ima = 1;
break;
}
}
vector<int>rez;
if(!ima){
return rez;
}
int koji = n - d;
for(int i=1; i<=levo; i++)rez.push_back(i-1);
for(int i=n-1; i>=koji; i--)rez.push_back(i);
return rez;
}
int main() {
//int n, l, u;
int l,u;
assert(3 == scanf("%d %d %d", &n, &l, &u));
std::vector<int> w(n);
for (int i = 0; i < n; i++)
assert(1 == scanf("%d", &w[i]));
std::vector<int> result = find_subset(l, u, w);
printf("%d\n", (int)result.size());
for (int i = 0; i < (int)result.size(); i++)
printf("%d%c", result[i], " \n"[i == (int)result.size() - 1]);
return 0;
}
Compilation message
/tmp/cc8u50m9.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccECbh0H.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status
