Submission #1243069

#	Time	Username	Problem	Language	Result	Execution time	Memory
1243069		Circling	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include <iostream>
#include <iomanip>
#include <utility>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <algorithm>
#include <cmath>
#include <cstdint>
#include "molecules.h"
using namespace std;


vector<int> find_subset(int64_t l, int64_t u, vector<int64_t> w){
    vector<pair<int64_t, int>> arr;
    for (int i = 0; i < w.size(); i++) arr.push_back({w[i], i + 1});
    sort(arr.begin(), arr.end());
    int64_t prefsum = 0, sufsum = 0, len = 0, currsum;
    while (len < w.size() && sufsum < l){
        prefsum += arr[len].first;
        sufsum += arr[w.size() - 1 - len].first;
        len++;
    }
    if (len > w.size() || prefsum > u) return {};
    vector<int> indices, ans;
    for (int i = 0; i < len; i++) indices.push_back(i);
    currsum = prefsum;
    for (int i = 0; currsum < l; i++){
        currsum -= arr[indices[i]].first;
        indices[i] += len;
        currsum += arr[indices[i]].first;
    }
    for (int i = 0; i < len; i++) ans.push_back(arr[indices[i]].second);
    return ans;
}

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/ccj4uGdq.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