Submission #1129419

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129419		svorogaze	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define int long long

vector<int> find_subset(int l, int r, vector<int> ve) {
    vector<pair<int, int>> w;
    for (int i = 0; i < ve.size(); ++i) {
        w.push_back({ve[i], i});
    }
    sort(w.begin(), w.end());
    for (int i = 0; i < w.size(); ++i) {
        if (w[i].first >= l && w[i].first <= r) return {w[i].second + 1};
    }
    int kek = accumulate(ve.begin(), ve.end(), 0ll);
    if (kek >= l && kek <= r) {
        vector<int> rs(ve.size());
        iota(rs.begin(), rs.end(), 1ll);
        return rs;
    }
    int sm = w[0].first;vector<int> ans;
    for (int i = 1; i < w.size(); ++i) {
        sm += w[i].first;
        if (sm >= l && sm <= r) {
            for (int j = 0; j <= i; ++j) {
                ans.push_back(w[j].second + 1);
            }
            return ans;
        }
        int xx = sm - w[0].first + w.back().first;
        if (xx >= l && xx <= r) {
            for (int j = 1; j <= i; ++j) {
                ans.push_back(w[j].second + 1);
            }
            ans.push_back(w.back().second + 1);
        }
    }
    return {};
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/ccURxcBn.o: in function `main':
grader.cpp:(.text.startup+0x173): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status