Submission #1175049

#	Time	Username	Problem	Language	Result	Execution time	Memory
1175049		FZ_Laabidi	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
using namespace std;

vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();
    vector<pair<int, int>> in;
    for (int i = 0; i < n; ++i) {
        in.push_back(w[i], i);
    }
    sort(in.begin(), in.end());
    long long sum = 0;
    vector<int> res;
    for (int i=0; i<n;++i) {
        if (sum + in[i].first <= u) {
            sum += in[i].first;
            res.push_back(in[i].second);
            if (sum >= l) 
                return res;
        }
    }
    res.clear();
    sum = 0;
    for (int i=n-1;i>=0;--i) {
        if (sum+in[i].first <= u) {
            sum += in[i].first;
            res.push_back(in[i].second);
            if (sum >= l) {
                return res;
            }
        }
    }
    return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:21: error: no matching function for call to 'std::vector<std::pair<int, int> >::push_back(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, int&)'
    8 |         in.push_back(w[i], i);
      |         ~~~~~~~~~~~~^~~~~~~~~
In file included from /usr/include/c++/11/vector:67,
                 from molecules.h:3,
                 from molecules.cpp:1:
/usr/include/c++/11/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<int, int>]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1187:7: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/11/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<int, int>]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1203:7: note:   candidate expects 1 argument, 2 provided
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
      |         ^~~~