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Submission #963344

# Submission time Handle Problem Language Result Execution time Memory
963344 2024-04-14T21:12:11 Z TimAni Bitaro’s Party (JOI18_bitaro) C++17
7 / 100
 2000 ms 66516 KB 
//start-time: 2024-04-14 19:39:32
#include <bits/stdc++.h>
 
using namespace std;
using ll = long long;
 
const int w = 100;
 
void solve(){
    int n, m, q;
    cin >> n >> m >> q;
 
    vector<vector<int>> gR(n);
 
    for(int i = 0; i < m; i++){
        int u, v;
        cin >> u >> v;
        gR[v - 1].push_back(u - 1);
    }
    
    vector<vector<pair<int, int>>> dp(n);

    vector<int> vis(n), val(n), cur;
    for(int u = 0; u < n; u++){
        val.assign(n, 0);
        cur.clear();
        for(auto &v : gR[u]){
            for(auto &[value, ind] : dp[v]){
                val[ind] = max(val[ind], value + 1);
                if(vis[ind] != u){
                    vis[ind] = u;
                    cur.push_back(ind);
                }
            }
        }
		for(auto v : cur) dp[u].push_back({val[v],v});
		dp[u].push_back({0,u}); 
        sort(dp[u].rbegin(), dp[u].rend());
		if(dp[u].size()>w) dp[u].erase(dp[u].begin() + w, dp[u].end());
    }
 
    while(q--){
        vector<bool> c(n);
        int u, y, ans = -1;
        cin >> u >> y;
        u--;
        for(int j = 0; j < y; j++){
            int a; cin >> a;
            c[--a] = 1;
        }
 
        if(y < w) {
            for(auto &[v, i] : dp[u]){
                if(!c[i]){
                    ans = max(ans, v);
                }
            }
        }
        else {
            vector<int> naive(n);
            for(int v = 0; v <= u; v++){
                naive[v] = c[v] ? -1 : 0;
                for(auto &el : gR[v]){
                    naive[v] = max(naive[v], naive[el] + (naive[el] != -1));
                }
            }
            ans = naive[u];
        }
 
        cout << ans << endl;
    }
}
 
int main() {
    cin.tie(0)->sync_with_stdio(0);
    ll T = 1;
    //cin >> T;
    while(T--) solve();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 3 ms 860 KB Output is correct
8 Correct 3 ms 1372 KB Output is correct
9 Correct 4 ms 1372 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 3 ms 1372 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 5 ms 1372 KB Output is correct
14 Correct 3 ms 1116 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 1116 KB Output is correct
17 Correct 3 ms 1112 KB Output is correct
18 Correct 4 ms 1116 KB Output is correct
19 Correct 3 ms 1116 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 3 ms 860 KB Output is correct
8 Correct 3 ms 1372 KB Output is correct
9 Correct 4 ms 1372 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 3 ms 1372 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 5 ms 1372 KB Output is correct
14 Correct 3 ms 1116 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 1116 KB Output is correct
17 Correct 3 ms 1112 KB Output is correct
18 Correct 4 ms 1116 KB Output is correct
19 Correct 3 ms 1116 KB Output is correct
20 Correct 54 ms 2516 KB Output is correct
21 Correct 56 ms 2424 KB Output is correct
22 Correct 70 ms 2392 KB Output is correct
23 Correct 63 ms 2640 KB Output is correct
24 Execution timed out 2077 ms 66516 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #3
0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 3 ms 860 KB Output is correct
8 Correct 3 ms 1372 KB Output is correct
9 Correct 4 ms 1372 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 3 ms 1372 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 5 ms 1372 KB Output is correct
14 Correct 3 ms 1116 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 1116 KB Output is correct
17 Correct 3 ms 1112 KB Output is correct
18 Correct 4 ms 1116 KB Output is correct
19 Correct 3 ms 1116 KB Output is correct
20 Correct 54 ms 2516 KB Output is correct
21 Correct 56 ms 2424 KB Output is correct
22 Correct 70 ms 2392 KB Output is correct
23 Correct 63 ms 2640 KB Output is correct
24 Execution timed out 2077 ms 66516 KB Time limit exceeded
25 Halted 0 ms 0 KB -