Submission #1102825

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102825		blackslex	Topical (NOI23_topical)	C++17	40 / 100	1082 ms	161412 KiB

Main

#include<bits/stdc++.h>

using namespace std;
using pii = pair<int, int>;

int n, k;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> k;
    vector<vector<int>> r(n + 5, vector<int>(k + 5)), u(n + 5, vector<int>(k + 5));
    vector<int> p(k + 5), done(n + 5);
    vector<multiset<pii>> ms(k + 5);
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= k; j++) {
            cin >> r[i][j];
            if (r[i][j]) ms[j].emplace(r[i][j], i);
            else done[i]++;
        }
    }
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= k; j++) cin >> u[i][j];
    }
    queue<int> q;
    vector<bool> f(n + 5);
    for (int i = 1; i <= n; i++) if (done[i] == k) q.emplace(i);
    while (!q.empty()) {
        int cur = q.front(); q.pop();
        if (f[cur]) continue; f[cur] = 1;
        for (int j = 1; j <= k; j++) {
            p[j] += u[cur][j];
            vector<pii> c;
            for (auto [x, y]: ms[j]) {
                if (x <= p[j]) {
                    done[y]++;
                    if (done[y] == k) q.emplace(y);
                    c.emplace_back(x, y);
                } else break;
            }
            for (auto &e: c) ms[j].erase(e);
        }
    }
    int ans = 0;
    for (int i = 1; i <= n; i++) if (f[i]) ans++;
    cout << ans;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:29:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   29 |         if (f[cur]) continue; f[cur] = 1;
      |         ^~
Main.cpp:29:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   29 |         if (f[cur]) continue; f[cur] = 1;
      |                               ^

• Subtask 1: 12 / 12
• Subtask 2: 28 / 28
• Subtask 3: 0 / 21
• Subtask 4: 0 / 39