Submission #472446

#	Time	Username	Problem	Language	Result	Execution time	Memory
472446		nadorb	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
using namespace std;

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pair<int, int>> v;
    for(int i = 0; i < n; i++){
        v[i].first = w[i];
        v[i].second = i;
    }
    sort(v.begin(), v.end());
    long long sum = 0, n = v.size();
    int db = -1;
    for(int i = 0, i < n; i++){
        if(sum + v[i].first < l){
            sum += v[i].first;
            db++;
        }
    }
    vector<int> ki;
    if(db < n && sum + v[db + 1] <= u){
        for(int i = 0; i < db + 2; i++){
            ki.push_back(v[i].second);
        }
        return ki;
    }
    vector<int> mik;
    for(int i = 0; i < db; i++){
        mik.push_back(i);
    }
    for(int i = 0; i < min((n - 1) / 2, db); i++){
        sum += v[n - i - 1].first - v[i].first;
        mik[i] = n - i - 1;
        if(sum >= l){
            for(int i : mik){
                ki.push_back(v[mik[i]].second);
            }
            return ki;
        }
    }
    return vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:24: error: 'n' was not declared in this scope
    6 |     for(int i = 0; i < n; i++){
      |                        ^
molecules.cpp:10:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   10 |     sort(v.begin(), v.end());
      |     ^~~~
      |     short
molecules.cpp:13:21: error: expected ';' before '<' token
   13 |     for(int i = 0, i < n; i++){
      |                     ^~
      |                     ;
molecules.cpp:13:22: error: expected primary-expression before '<' token
   13 |     for(int i = 0, i < n; i++){
      |                      ^
molecules.cpp:20:22: error: no match for 'operator+' (operand types are 'long long int' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'})
   20 |     if(db < n && sum + v[db + 1] <= u){
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from molecules.h:3,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: candidate: 'template<class _Iterator> std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)'
  508 |     operator+(typename reverse_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:508:5: note:   template argument deduction/substitution failed:
molecules.cpp:20:32: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   20 |     if(db < n && sum + v[db + 1] <= u){
      |                                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from molecules.h:3,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: candidate: 'template<class _Iterator> std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)'
 1540 |     operator+(typename move_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note:   template argument deduction/substitution failed:
molecules.cpp:20:32: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} is not derived from 'const std::move_iterator<_IteratorL>'
   20 |     if(db < n && sum + v[db + 1] <= u){
      |                                ^
molecules.cpp:30:43: error: no matching function for call to 'min(long long int, int&)'
   30 |     for(int i = 0; i < min((n - 1) / 2, db); i++){
      |                                           ^
In file included from /usr/include/c++/10/vector:60,
                 from molecules.h:3,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
molecules.cpp:30:43: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   30 |     for(int i = 0; i < min((n - 1) / 2, db); i++){
      |                                           ^
In file included from /usr/include/c++/10/vector:60,
                 from molecules.h:3,
                 from molecules.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
molecules.cpp:30:43: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   30 |     for(int i = 0; i < min((n - 1) / 2, db); i++){
      |                                           ^