Submission #403267

#	Time	Username	Problem	Language	Result	Execution time	Memory
403267		MDario	Detecting Molecules (IOI16_molecules)	C++11	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
std::vector<int> find_subset(int l, int u, vector<int> z){
    vector<int> v;
    vector<pair<int, int>> w;
    int c=0, s=0, n=z.size();
    for(int i=0; i<n; i++){
        w.push_back({z[i], [i]});
    }
    sort(w.begin(), w.end());
    for(int i=0; i<n; i++){
        while(s<l&&c<n){
            s+=w[c].F;
            c++;
        }
        if(l<=s&&s<=u){
            for(int t=i; t<c; t++)v.push_back(w[t].S);
            break;
        }
        s-=w[i];
    }
    return v;
}

Compilation message (stderr)

molecules.cpp: In lambda function:
molecules.cpp:11:31: error: expected '{' before '}' token
   11 |         w.push_back({z[i], [i]});
      |                               ^
molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:11:32: error: no matching function for call to 'std::vector<std::pair<int, int> >::push_back(<brace-enclosed initializer list>)'
   11 |         w.push_back({z[i], [i]});
      |                                ^
In file included from /usr/include/c++/10/vector:67,
                 from molecules.h:3,
                 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<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++/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<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<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++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
molecules.cpp:23:10: error: no match for 'operator-=' (operand types are 'int' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'})
   23 |         s-=w[i];