Submission #434872

#	Time	Username	Problem	Language	Result	Execution time	Memory
434872		sikamax2019	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"

using namespace std;

typedef long long ll;
typedef pair <ll, int> pii;

vector <int> find_subset (int l, int u, vector <int> w) {
  int n = w.size();
  vector <pii> v;
  for (int i = 0; i < n; ++i) {
    v.push_back({(w[i], i)});
  }
  sort(v.begin(), v.end());
  ll sum = 0;
  vector <int> r;
  for (int i = 0, j = 0; j < n; ++j) {
    sum += v[j].first;
    while (sum > u) {
      sum -= v[i++].first;
    }
    if (sum >= l) {
      for (int k = i; k <= j; ++k) {
	r.push_back(v[k].second);
      }
      break;
    }
  }
  return r;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:28: error: no matching function for call to 'std::vector<std::pair<long long int, int> >::push_back(<brace-enclosed initializer list>)'
   13 |     v.push_back({(w[i], i)});
      |                            ^
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:86,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::pair<long long int, int>; _Alloc = std::allocator<std::pair<long long int, int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<long long int, int>]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::pair<long long int, int>&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/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<long long int, int>; _Alloc = std::allocator<std::pair<long long int, int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<long long int, int>]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<std::pair<long long int, int> >::value_type&&' {aka 'std::pair<long long int, int>&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~