Submission #881773

#	Time	Username	Problem	Language	Result	Execution time	Memory
881773		Microfs	Knapsack (NOI18_knapsack)	C++14	Compilation error	0 ms	0 KiB

knapsack

#include <iostream>
#include <vector>
#include <cstring>
#include <algorithm>
#include <climits>
using namespace std;
const int MAXN = 2003;
long long dp[MAXN];
vector<vector<long long>> items(2003);
int main(){
    for(int i =0; i < MAXN; i++)dp[i]=0;
    int s,n; cin >> s >> n;
    for(int i = 0; i < n; i++){
        int v,w,k; cin >> v >> w >> k;
        for(int i = 0; i < s/w; i++){
            if(i >= k)break;
                items[w].push_back(v);
        }
    }
    int maxmax = -1;
    for(int i =0; i <= s; i++)sort(items[i].begin(),items[i].end(),greater<int>());
    for(int i = 1; i <= s; i++){ // item ind
        int smol = min((int)items[i].size(),s/i);
        for(int j = 0; j < smol; j++){ //num of items taken
            for(int k = s; k >= i; k--){
                dp[k] = max(dp[k], dp[k-i]+items[i][j]);
            }
        }

    }
    for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,dp[i]);
    cout << maxmax << endl;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:31:59: error: no matching function for call to 'max(int&, long long int&)'
   31 |     for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,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/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 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:31:59: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   31 |     for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,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/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 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:31:59: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   31 |     for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,dp[i]);
      |                                                           ^
In file included from /usr/include/c++/10/algorithm:62,
                 from knapsack.cpp:4:
/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:31:59: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   31 |     for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,dp[i]);
      |                                                           ^
In file included from /usr/include/c++/10/algorithm:62,
                 from knapsack.cpp:4:
/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:31:59: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   31 |     for(int i  =0; i < MAXN; i++)maxmax = max(maxmax,dp[i]);
      |                                                           ^