Submission #1073008

#	Time	Username	Problem	Language	Result	Execution time	Memory
1073008		GTA	T-Covering (eJOI19_covering)	C++17	0 / 100	1 ms	2520 KiB

covering

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define vi vector<int>
#define pi pair<int, int>
#define fr(i, m, n) for (int i = m; i <= n; i++)
#define frr(i, m, n) for (int i = m; i >= n; i--)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define endl '\n'
#define el cout << endl
#define inf 1e18
#define mii map<int, int>
#define pb push_back
#define sz size()
#define pi pair<int, int>
#define vpi vector<pi>
#define si set<int>
int n, m, a, b, c, d, e, x, y, z, w, i, j, qq, k, l, r;
int mi = inf, ma, cnt, ans;
bool id;
string s;

const int N = 1e6 + 5;
vi dx = {0, 0, 1, -1, 1, 1, -1, -1, 0, 0, 2, -2};
vi dy = {1, -1, 0, 0, -1, 1, -1, 1, 2, -2, 0, 0};
vector<array<int, 3>> an;
int vis[N];
map<pi, int>mp;
pi v[N];
void solve() {
    cin >> n >> m;
    int g[n + 1][m + 1];
    fr(i, 1, n) {
        fr(j, 1, m) {
            cin >> g[i][j];
        }
    }

    cin >> k;
    fr(i, 1, k) {
        cin >> a >> b; v[i] = {a, b}; mp[ {a, b}] = i;
    }

    fr(i, 1, k) {
        if (vis[i]) continue;
        auto [a, b] = v[i];
        int siz = 0;

        queue<array<int, 3>>q; q.push({a, b, i});
        set<pi> isi;
        vector<pi> aw;

        while (q.sz) {
            auto[a, b, tc] = q.front(); q.pop();
            // cout << a << " " << b << " " << tc; el;
            aw.pb({a, b}); siz++;
            // isi.insert({a, b});
            ans += g[a][b];
            vis[tc] = 1;
            fr(i, 0, 11) {
                x = a + dx[i];
                y = b + dy[i];
                z = mp[ {x, y}];
                if (x >= 1 and x <= n and y >= 1 and y <= m and z and !vis[z]) {
                    q.push({x, y, mp[{x, y}]});
                }
            }
        }

        // cout << isi.sz; el;
        for (auto [a, b] : aw) {
            fr(i, 0, 3) {
                x = a + dx[i];
                y = b + dy[i];
                if (x >= 1 and x <= n and y >= 1 and y <= m) {
                    if (mp[ {x, y}]) continue;
                    isi.insert({x, y});
                }
            }
            // cout << a << " " << b; el;
        }

        priority_queue<int>pq;
        for (auto [a, b] : isi) pq.push(-g[a][b]), ans += g[a][b];
        // cout << ans << " ";
        while (pq.sz > 3 * siz) {
            auto k = pq.top(); pq.pop();
            ans -= -k;
        }
    }
    cout << "TEPAT"; el;
    cout << ans;
}
signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int T = 1;
    // cin >> T;
    while (T--) {
        cout << fixed << setprecision(12); solve();
        el;
    } return 0;
}

Compilation message (stderr)

covering.cpp: In function 'void solve()':
covering.cpp:87:22: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   87 |         while (pq.sz > 3 * siz) {
      |                ~~~~~~^~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 30