Submission #1107584

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107584		adkjt	Knapsack (NOI18_knapsack)	C++14	Compilation error	0 ms	0 KiB

knapsack

#include<bits/stdc++.h>
using namespace std;
#define f first
#define s second

vector<pair<long long,long long>> V[2222];
long long dp[2222];
pair<long long,pair<long long,long long>> a[111111];//v,w,k
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
    int s,n;
    cin>>s>>n;
    for(int i=1; i<=n; i++)
    {
        cin>>a[i].f>>a[i].s.f>>a[i].s.s;
        if(a[i].s.f>s) continue;
        V[a[i].s.f].push_back({-a[i].f,a[i].s.s});
    }
    for(int i=1; i<=s; i++) dp[i]=-1;
    for(int i=1; i<=s; i++)
        sort(V[i].begin(),V[i].end());
    for(int i=1; i<=s; i++)
    {
        if (V[i].empty()) continue;
        int j = 0;

            for(auto x:V[i])//v,k
            {
                re:
                for (int w = s; w - i >= 0; w--)
                {
                    dp[w] = max(dp[w], dp[w - i] - x.f);
                }
                x.s--;
                if (x.s == 0)
                {
                    continue;
                }
                else goto re;

            }

    }
    int ans=0;
    for(int i=1; i<=s; i++)
        ans=max(ans,dp[i]);
    cout<<ans;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:26:13: warning: unused variable 'j' [-Wunused-variable]
   26 |         int j = 0;
      |             ^
knapsack.cpp:47:26: error: no matching function for call to 'max(int&, long long int&)'
   47 |         ans=max(ans,dp[i]);
      |                          ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 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:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
knapsack.cpp:47:26: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   47 |         ans=max(ans,dp[i]);
      |                          ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 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:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
knapsack.cpp:47:26: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   47 |         ans=max(ans,dp[i]);
      |                          ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from knapsack.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
knapsack.cpp:47:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   47 |         ans=max(ans,dp[i]);
      |                          ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from knapsack.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
knapsack.cpp:47:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   47 |         ans=max(ans,dp[i]);
      |                          ^