Submission #565906

#	Time	Username	Problem	Language	Result	Execution time	Memory
565906		sidon	Carnival Tickets (IOI20_tickets)	C++17	Compilation error	0 ms	0 KiB

tickets

#include "tickets.h"
#include "bits/stdc++.h"
using namespace std;
using ll = long long;

ll find_maximum(int k, vector<vector<int>> x) {
	int n = x.size(), m = x[0].size();
	vector<vector<int>> g(n, vector<int> (m, -1));
	ll res {};

	vector<array<ll, 3>> a;
	int b[n];

	for(int i = n; i--; ) {
		b[i] = k;
		ll cur {};
		for(int j = 0; j < k; ++j)
			cur -= x[i][j];
		res += cur;

		for(int j = k; j--; ) {
			ll add = x[i][j] + x[i][m+j-k];
			a.push_back({add, i, j});
			cur += add;
		}
	}

	sort(rbegin(a), rend(a));

	for(int i = (k * n / 2); i--; ) {
		res += a[i][0];
		b[a[i][1]] = min(b[a[i][1]], a[i][2]);
	}

	for(int i = n; i--; ) {
		for(int j = b[i]; j--; )
			--g[i][j];
		for(int j = 0; j < k - b[i]; ++j)
			++g[i][m-1-j];
	}

	int l[n] {}, r[n];
	bool vis[n];
	fill(r, r + n, m-1);

	for(int c = 0; c < k; ++c) {
		int cnt {};
		fill(vis, vis + n, 0);
		for(int i = n; i--; ) {
			if(g[i][l[i]] > -2)
				g[i][r[i]--] = c, ++cnt, vis[i] = 1;
			if(g[i][r[i]] < 0)
				g[i][l[i]++] = c, --cnt, vis[i] = 1;
		}
		for(int i = n; i--; ) if(!vis[i]) {
			if(cnt < 0)
				g[i][r[i]--] = c, ++cnt;
			else
				g[i][l[i]++] = c, --cnt;
		}
	}

	allocate_tickets(g);
	return res;
}

Compilation message (stderr)

tickets.cpp: In function 'll find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:32:39: error: no matching function for call to 'min(int&, std::array<long long int, 3>::value_type&)'
   32 |   b[a[i][1]] = min(b[a[i][1]], a[i][2]);
      |                                       ^
In file included from /usr/include/c++/10/vector:60,
                 from tickets.h:1,
                 from tickets.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
tickets.cpp:32:39: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::array<long long int, 3>::value_type' {aka 'long long int'})
   32 |   b[a[i][1]] = min(b[a[i][1]], a[i][2]);
      |                                       ^
In file included from /usr/include/c++/10/vector:60,
                 from tickets.h:1,
                 from tickets.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
tickets.cpp:32:39: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::array<long long int, 3>::value_type' {aka 'long long int'})
   32 |   b[a[i][1]] = min(b[a[i][1]], a[i][2]);
      |                                       ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from tickets.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3468:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)'
 3468 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
tickets.cpp:32:39: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   32 |   b[a[i][1]] = min(b[a[i][1]], a[i][2]);
      |                                       ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from tickets.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3474:5: note:   template argument deduction/substitution failed:
tickets.cpp:32:39: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   32 |   b[a[i][1]] = min(b[a[i][1]], a[i][2]);
      |                                       ^