#include <bits/stdc++.h>
using namespace std;
#define int long long
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l,int r){return l+rng()%(r-l+1);}
#define fasty ios_base::sync_with_stdio(0),cin.tie(0);
#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)
#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)
#define forv(a,b) for(auto&a:b)
#define fi first
#define se second
#define pb push_back
#define ii pair<int,int>
#define mt make_tuple
#define all(a) a.begin(),a.end()
#define reset(f, x) memset(f, x, sizeof(f))
#define gg exit(0);
vector<int> find_subset(int l,int r,vector<int> w){
vector<ii> a;
forinc(i,0,w.size()-1)
a.pb({w[i],i});
sort(all(a));
vector<int> ans;
deque<int> d;
long long tot=0;
forv(i,a){
tot+=i.fi;
d.push_back(i.se);
while(tot>r){
tot-=w[d.front()];
d.pop_front();
}
if(tot>=l){
while(d.size()){
ans.push_back(d.back());
d.pop_back();
}
break;
}
}
return ans;
}
Compilation message
/tmp/ccANkErT.o: In function `main':
grader.cpp:(.text.startup+0x152): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status
