Submission #481928

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
481928	2021-10-22T08:56:44 Z	Lam_lai_cuoc_doi	Meetings (JOI19_meetings)	C++17	Compilation error	0 ms	0 KB

meetings

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;

template <class T>
void read(T &x)
{
    x = 0;
    register int c;
    while ((c = getchar()) && (c > '9' || c < '0'))
        ;
    for (; c >= '0' && c <= '9'; c = getchar())
        x = x * 10 + c - '0';
}

constexpr bool typetest = 0;
constexpr int N = 2e3 + 5;
bool ck[N];

void Recursive(vector<int> &s)
{
    if (s.size() < 1)
        return;
    if (s.size() == 2)
    {
        Bridge(min(s[0], s[1]), max(s[0], s[1]));
        return;
    }

    int u = s[0], v = s[1];

    vector<int> l, r, use;
    for (int i = 2; i < (int)s.size(); ++i)
        use.emplace_back(s[i]);

    while (!use.empty())
    {
        if (ck[use.back()])
        {
            use.pop();
            continue;
        }

        int z = Query(u, v, use.back());
        if (z == u)
            r.emplace_back(z);
        else if (z == v)
            l.emplace_back(z);
        else
        {
            l.emplace_back(use.back());
            l.emplace_back(v);
            v = z;
        }
    }

    Bridge(min(u, v), max(u, v));

    for (auto i : s)
        ck[i] = 0;

    l.emplace_back(v);
    r.emplace_back(u);

    Recursive(l);
    Recursive(r);
}

void Solve(int n)
{
    vector<int> s;
    for (int i = 1; i <= n; ++i)
        s.emplace_back(i);
    Recursive(s);
}

Compilation message

meetings.cpp: In function 'void read(T&)':
meetings.cpp:12:18: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   12 |     register int c;
      |                  ^
meetings.cpp: In function 'void Recursive(std::vector<int>&)':
meetings.cpp:29:9: error: 'Bridge' was not declared in this scope
   29 |         Bridge(min(s[0], s[1]), max(s[0], s[1]));
      |         ^~~~~~
meetings.cpp:43:17: error: 'class std::vector<int>' has no member named 'pop'
   43 |             use.pop();
      |                 ^~~
meetings.cpp:47:17: error: 'Query' was not declared in this scope
   47 |         int z = Query(u, v, use.back());
      |                 ^~~~~
meetings.cpp:60:5: error: 'Bridge' was not declared in this scope
   60 |     Bridge(min(u, v), max(u, v));
      |     ^~~~~~