Submission #507510

#TimeUsernameProblemLanguageResultExecution timeMemory
507510PikaQKnapsack (NOI18_knapsack)C++17
Compilation error
0 ms0 KiB
/* RE */ #include<bits/stdc++.h> #define int ll #define forn(i,n) for(int i=0;i<(n);i++) #define Forn(i,n) for(int i=1;i<=(n);i++) #define ll long long #define pb push_back #define F first #define S second #define lb lower_bound #define ub upper_bound #define rz resize #define vi vector<int> #define vl vector<long long> #define vpi vector<pair<int,int> > #define pii pair<int,int> #define pll pair<long long,long long> #define mp make_pair #define all(p) p.begin(),p.end() #define alr(p,q) p+1,p+q+1 #define ull unsigned long long #define st0(p) memset((p),0,sizeof(p)) #define T(x) ((xb)%2 ? s[(x)/2] : '.') #define lowb(x) x&-x #define ls(x) (x)*2 #define rs(x) (x)*2+1 #define sz(x) (x).size() using namespace std; inline void USACO(const string &s){ freopen((s+".in").c_str(),"r",stdin); freopen((s+".out").c_str(),"w",stdout); } void debug() {cout << endl;} template <class T, class ...U> void debug(T a, U ... b) { cout << a << " "; debug(b...);} #define fail() {cout << "-1\n";return;} const int mod = 1e9+7; const int N = 2e3+9; int n,s; vpi stuff; vpi a[N]; int dp[N]; void solve(){ cin >> s >> n; forn(i,n){ int w,v,k; cin >> v >> w >> k; a[w].pb(mp(v,k)); } Forn(i,s) sort(all(a[i]),greater<int>()); Forn(i,s){ int cnt = s/i ; for(auto &j : a[i]){ int res = min(cnt,j.S); cnt -= res; while(res--){ // debug(i,j.F); stuff.pb(mp(i,j.F)); } if(cnt == 0) break; } } for(pii p : stuff){ int w = p.F,v = p.S; // debug(w,v); for(int i = s;i >= w;i--){ if(i >= w){ dp[i] = max(dp[i],dp[i-w] + v); } } } int ans = 0; cout << dp[s] << '\n'; } signed main(){ // USACO("feast"); cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0); // int t; // cin >> t; // while(t--) solve(); return 0; }

Compilation message (stderr)

knapsack.cpp: In function 'void solve()':
knapsack.cpp:75:6: warning: unused variable 'ans' [-Wunused-variable]
   75 |  int ans = 0;
      |      ^~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 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 knapsack.cpp:2:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'constexpr bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Iterator2 = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = std::greater<long long int>]':
/usr/include/c++/10/bits/stl_algo.h:82:17:   required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1924:34:   required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1958:38:   required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1974:25:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:4892:18:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = std::greater<long long int>]'
knapsack.cpp:53:41:   required from here
/usr/include/c++/10/bits/predefined_ops.h:156:30: error: no match for call to '(std::greater<long long int>) (std::pair<long long int, long long int>&, std::pair<long long int, long long int>&)'
  156 |         { return bool(_M_comp(*__it1, *__it2)); }
      |                       ~~~~~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/string:48,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from knapsack.cpp:2:
/usr/include/c++/10/bits/stl_function.h:375:7: note: candidate: 'constexpr bool std::greater<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = long long int]'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_function.h:375:29: note:   no known conversion for argument 1 from 'std::pair<long long int, long long int>' to 'const long long int&'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |                  ~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 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 knapsack.cpp:2:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Val_comp_iter<_Compare>::operator()(_Value&, _Iterator) [with _Value = std::pair<long long int, long long int>; _Iterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = std::greater<long long int>]':
/usr/include/c++/10/bits/stl_algo.h:1826:20:   required from 'void std::__unguarded_linear_insert(_RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Val_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1854:36:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1886:25:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1977:31:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:4892:18:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = std::greater<long long int>]'
knapsack.cpp:53:41:   required from here
/usr/include/c++/10/bits/predefined_ops.h:238:23: error: no match for call to '(std::greater<long long int>) (std::pair<long long int, long long int>&, std::pair<long long int, long long int>&)'
  238 |  { return bool(_M_comp(__val, *__it)); }
      |                ~~~~~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/10/string:48,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from knapsack.cpp:2:
/usr/include/c++/10/bits/stl_function.h:375:7: note: candidate: 'constexpr bool std::greater<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = long long int]'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_function.h:375:29: note:   no known conversion for argument 1 from 'std::pair<long long int, long long int>' to 'const long long int&'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |                  ~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 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 knapsack.cpp:2:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_comp_val<_Compare>::operator()(_Iterator, _Value&) [with _Iterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Value = std::pair<long long int, long long int>; _Compare = std::greater<long long int>]':
/usr/include/c++/10/bits/stl_heap.h:139:48:   required from 'void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare&) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Distance = long int; _Tp = std::pair<long long int, long long int>; _Compare = __gnu_cxx::__ops::_Iter_comp_val<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_heap.h:246:23:   required from 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Distance = long int; _Tp = std::pair<long long int, long long int>; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_heap.h:355:22:   required from 'void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare&) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1666:23:   required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1937:25:   required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1953:27:   required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:1974:25:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<std::greater<long long int> >]'
/usr/include/c++/10/bits/stl_algo.h:4892:18:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<long long int, long long int>*, std::vector<std::pair<long long int, long long int> > >; _Compare = std::greater<long long int>]'
knapsack.cpp:53:41:   required from here
/usr/include/c++/10/bits/predefined_ops.h:194:23: error: no match for call to '(std::greater<long long int>) (std::pair<long long int, long long int>&, std::pair<long long int, long long int>&)'
  194 |  { return bool(_M_comp(*__it, __val)); }
      |                ~~~~~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/10/string:48,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from knapsack.cpp:2:
/usr/include/c++/10/bits/stl_function.h:375:7: note: candidate: 'constexpr bool std::greater<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = long long int]'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_function.h:375:29: note:   no known conversion for argument 1 from 'std::pair<long long int, long long int>' to 'const long long int&'
  375 |       operator()(const _Tp& __x, const _Tp& __y) const
      |                  ~~~~~~~~~~~^~~