molecules.cpp:7:36: error: expected ',' or '...' before 'w'
7 | int find_subset(int l,int u, int[] w, int n, int[] result) {
| ^
molecules.cpp: In function 'int find_subset(int, int, int*)':
molecules.cpp:8:27: error: 'n' was not declared in this scope
8 | vector<pair<int, int>> a(n);
| ^
molecules.cpp:11:11: error: 'w' was not declared in this scope
11 | a[i] = {w[i], i};
| ^
molecules.cpp:11:18: error: no match for 'operator=' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type' {aka 'std::pair<int, int>'} and '<brace-enclosed initializer list>')
11 | a[i] = {w[i], i};
| ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from molecules.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:390:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type = const std::pair<int, int>&]'
390 | operator=(typename conditional<
| ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:393:41: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, const std::pair<int, int>&, const std::__nonesuch&>::type' {aka 'const std::pair<int, int>&'}
390 | operator=(typename conditional<
| ~~~~~~~~~~~~~~~~~~~~~
391 | __and_<is_copy_assignable<_T1>,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
392 | is_copy_assignable<_T2>>::value,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
393 | const pair&, const __nonesuch&>::type __p)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:401:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type = std::pair<int, int>&&]'
401 | operator=(typename conditional<
| ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:404:31: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, std::pair<int, int>&&, std::__nonesuch&&>::type' {aka 'std::pair<int, int>&&'}
401 | operator=(typename conditional<
| ~~~~~~~~~~~~~~~~~~~~~
402 | __and_<is_move_assignable<_T1>,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
403 | is_move_assignable<_T2>>::value,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
404 | pair&&, __nonesuch&&>::type __p)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
418 | operator=(const pair<_U1, _U2>& __p)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note: template argument deduction/substitution failed:
molecules.cpp:11:18: note: couldn't deduce template parameter '_U1'
11 | a[i] = {w[i], i};
| ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from molecules.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:430:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
430 | operator=(pair<_U1, _U2>&& __p)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:430:2: note: template argument deduction/substitution failed:
molecules.cpp:11:18: note: couldn't deduce template parameter '_U1'
11 | a[i] = {w[i], i};
| ^
molecules.cpp:20:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
20 | if(j < pref.size() && pref[j] - pref[i] <= u) {
| ~~^~~~~~~~~~~~~
molecules.cpp:24:5: error: 'result' was not declared in this scope
24 | result[p] = (a[i].second);
| ^~~~~~