Submission #127949

#	Time	Username	Problem	Language	Result	Execution time	Memory
127949		Sorting	Boxes with souvenirs (IOI15_boxes)	C++14	Compilation error	0 ms	0 KiB

boxes

#include <bits/stdc++.h>

using namespace std;

const int N = 1e7 + 7;

vector<long long> v1, v2;
vector<long long> v3, v4;

void output(vector<long long> v){
	for(long long &x: v){
		cout << x << " ";
	}
	cout << endl;
}

long long delivery(int n, int k, int l, int *positions){
	sort(positions, positions + n);
	
	int idx = 0;

	for(; idx < n && positions[idx] <= l / 2; idx++){
		v1.push_back(positions[idx]);
	}
	for(; idx < n; idx++){
		v2.push_back(l - positions[idx]);
	}
	if(!v2.empty()){
		reverse(v2.begin(), v2.end());
	}

	//output(v1);
	//output(v2);

	long long ans = 0, sum1 = 0, sum2 = 0;

	for(int i = -1; true;){
		if(i + k >= (int)v1.size()){
			for(++i; i < (int)v1.size(); ++i){
				v3.push_back(v1[i]);
			}
			break;
		}
		i += k;
		sum1 += (long long)v1[i] * 2ll;
	}
	for(int i = -1; true;){
		if(i + k >= (int)v2.size()){
			for(++i; i < (int)v2.size(); ++i){
				v4.push_back(v2[i]);
			}
			break;
		}
		i += k;
		sum2 += (long long)v2[i] * 2ll;
	}

	//output(v3);
	//output(v4);

	ans = sum1 + sum2;

	if(v3.empty() || v4.empty()){
		if(!v3.empty()){
			ans += v3.back() * 2ll;
		}
		if(!v4.empty()){
			ans += v4.back() * 2ll;
		}

		return ans;
	}

	if((int)v3.size() + (int)v4.size() <= k){
		ans += min(l, v3.back() * 2ll + v4.back() * 2ll);

		return ans;
	}

	int j = (int)v3.size() + (int)v4.size() - k;

	ans += v3.back() * 2ll + v4.back() * 2ll;

	if((int)v3.size() >= j){
		long long ans2 = sum2;

		for(int i = (int)v1.size() + j - (int)v3.size() - 1; i >= 0; i -= k){
			ans2 += 2ll * v1[i];
		}

		ans = min(ans, ans2);
	}
	if((int)v4.size() >= j){
		long long ans2 = sum2;

		for(int i = (int)v2.size() + j - (int)v4.size() - 1; i >= 0; i -= k){
			ans2 += 2ll * v2[i];
		}

		ans = min(ans, ans2);
	}

	return ans;
}

/*int positions[N], n, k, l;

int main(){
	cin >> n >> k >> l;
	for(int i = 0; i < n; i++){
		cin >> positions[i];
	}

	cout << delivery(n, k, l, positions) << "\n";

	return 0;
}*/
/*
3 2 8
1 2 5
*/

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:75:50: error: no matching function for call to 'min(int&, __gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type)'
   ans += min(l, v3.back() * 2ll + v4.back() * 2ll);
                                                  ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from boxes.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:195:5: note: candidate: template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:195:5: note:   template argument deduction/substitution failed:
boxes.cpp:75:50: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type {aka long long int}')
   ans += min(l, v3.back() * 2ll + v4.back() * 2ll);
                                                  ^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from boxes.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:243:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:243:5: note:   template argument deduction/substitution failed:
boxes.cpp:75:50: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int> >::value_type {aka long long int}')
   ans += min(l, v3.back() * 2ll + v4.back() * 2ll);
                                                  ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from boxes.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3450:5: note: candidate: template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)
     min(initializer_list<_Tp> __l)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3450:5: note:   template argument deduction/substitution failed:
boxes.cpp:75:50: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   ans += min(l, v3.back() * 2ll + v4.back() * 2ll);
                                                  ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from boxes.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3456:5: note: candidate: template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)
     min(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3456:5: note:   template argument deduction/substitution failed:
boxes.cpp:75:50: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   ans += min(l, v3.back() * 2ll + v4.back() * 2ll);
                                                  ^