Submission #880864

#	Time	Username	Problem	Language	Result	Execution time	Memory
880864		mertozel	Knapsack (NOI18_knapsack)	C++11	Compilation error	0 ms	0 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

signed main() {

	ll size, n;
	cin >> size >> n;

	vector <ll> dp(size+1, 0), weights_res[size+1];
	vector <pair<ll,ll>> weights[size+1];
	for(ll i = 0; i<n; i++) {
		ll value, weight, copy;
		cin >> value >> weight >> copy;
		weights[weight].push_back({value, copy});
	}

	for(ll i = 1; i<=size; i++) {
		sort(weights[i].begin(), weights[i].end());
		reverse(weights[i].begin(), weights[i].end());
	}

	for(ll i = 1; i <= size; i++) {
		ll cnt = 0;
		for(auto j : weights[i]) {
			for(ll k = 0; k < j.second; k++) {
				if(cnt > (2000+i-1)/i) goto here;
				weights_res[i].push_back(j.first);
				cnt++;
			}
		}
		here:;
	}

	for(ll i = 1; i<=size; i++) { //weights
		for(ll j : weights_res[i]) { // values
			for(ll k = size; k >= 0; k--) {
				dp[k] = max(dp[max(0, k-1)], dp[k]);
				if(k + i <= size) dp[k+i] = max(dp[k] + j, dp[k+i]);
			}
		}
	}

	cout << dp[size];


	return  0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:38:30: error: no matching function for call to 'max(int, ll)'
   38 |     dp[k] = max(dp[max(0, k-1)], dp[k]);
      |                              ^
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> 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:38:30: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   38 |     dp[k] = max(dp[max(0, k-1)], dp[k]);
      |                              ^
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> 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:38:30: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   38 |     dp[k] = max(dp[max(0, k-1)], dp[k]);
      |                              ^
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> _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:38:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   38 |     dp[k] = max(dp[max(0, k-1)], dp[k]);
      |                              ^
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> _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:38:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   38 |     dp[k] = max(dp[max(0, k-1)], dp[k]);
      |                              ^