Submission #985677

#	Time	Username	Problem	Language	Result	Execution time	Memory
985677		rembocoder	Volontiranje (COCI21_volontiranje)	C++17	50 / 110	1038 ms	9564 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define int int64_t

// const int mod = 1e9 + 7;
const int inf = 2e18;

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<bool> del(n, false);
    int ans = -1;
    vector<vector<int>> seqs;
    while (true) {
        vector<int> dp(n, -inf);
        for (int i = n - 1; i >= 0; i--) {
            if (del[i]) {
                continue;
            }
            dp[i] = 1;
            for (int j = i + 1; j < n; j++) {
                if (!del[j] && a[j] > a[i]) {
                    dp[i] = max(dp[i], dp[j] + 1);
                }
            }
        }
        int cur = -inf;
        for (int i = 0; i < n; i++) {
            if (!del[i]) {
                cur = max(cur, dp[i]);
            }
        }
        if (ans == -1) {
            ans = cur;
        } else if (ans != cur) {
            break;
        }
        seqs.push_back({});
        int last = -1;
        for (int i = 0; i < n; i++) {
            if (del[i] || dp[i] != cur || (last != -1 && a[i] <= a[last])) {
                continue;
            }
            last = i;
            cur--;
            seqs.back().push_back(i);
            del[i] = true;
        }
    }
    cout << seqs.size() << ' ' << ans << '\n';
    for (int i = 0; i < seqs.size(); i++) {
        for (int x: seqs[i]) {
            cout << x + 1 << ' ';
        }
        cout << '\n';
    }
}

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:59:23: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<std::vector<long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for (int i = 0; i < seqs.size(); i++) {
      |                     ~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 0 / 60