Submission #883320

#	Time	Username	Problem	Language	Result	Execution time	Memory
883320		marcid	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#define int long long
#define ii pair<int,int>
#define iii tuple<int,int,int>
#define vb vector<bool>
#define vi vector<int>
#define vii vector<ii>
#define viii vector<iii>
#define pb push_back
#define eb emplace_back
#define all(v) v.begin(),v.end()
using namespace std;
vi find_subset(int l, int u, vi w) {
	int n = w.size();
	vii a(n);
	for (int i = 0; i < n; i++) {
		a[i]={w[i],i};
	} set<int> st; map<int,int> pos; int sum = 0; st.insert(0); pos[0]=-1;
	sort(a.begin(),a.end());
	for (int i = 0; i < n; i++) {
		sum+=a[i].first;
		auto it = *st.lower_bound(sum-u);
		if (it <= sum-l) {
			vi ans;
			for (int j = pos[it]+1; j < n; j++) {
				ans.pb(a[j].second);
			} return ans;
		} st.insert(sum);
		pos[sum] = i;
	}
	return {};
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccEYlWiP.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status