oj.uz

Submission #785571

# Submission time Handle Problem Language Result Execution time Memory
785571 2023-07-17T10:18:52 Z SlavicG Political Development (BOI17_politicaldevelopment) C++17
27 / 100
 573 ms 26268 KB 
#include "bits/stdc++.h"
using namespace std;
 
#define ll long long
 
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()
 
void solve() {
    int n, k; cin >> n >> k;
    unordered_set<int> st[n + 1];
    vector<vector<int>> adj(n);
    for(int i = 0; i < n; ++i) {
        int x; cin >> x; 
        if(x >= 1) {
            adj[i].resize(x);
            for(int j = 0; j < x; ++j) {
                cin >> adj[i][j];
                st[i].insert(adj[i][j]);
                st[adj[i][j]].insert(i);
            }
        } 
    }
    int ans = 1;
    for(int i = 0; i < n; ++i) {
        if(sz(adj[i]) >= k) continue;
        vector<int> dp(1 << (sz(adj[i])), 0);
        dp[0] = 1;
        for(int mask = 0; mask < (1 << (sz(adj[i]))); ++mask) {
            if(!dp[mask]) continue;
            int cnt = 1;
            ans = max(ans, __builtin_popcount(mask) + 1);
            for(int j = 0; j < sz(adj[i]); ++j) {
                if(mask >> j & 1) continue;
                bool check = true;
                for(int f = 0; f < sz(adj[i]); ++f) {
                    if(mask >> f & 1) {
                        if(st[adj[i][j]].find(adj[i][f]) == st[adj[i][j]].end()) check = false;
                    }
                }
                if(check) dp[mask | (1 << j)] = 1;
            }
        }
    }
    cout << ans << "\n";
}   
 
int32_t main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--) {
        solve();
    }
}

Compilation message

politicaldevelopment.cpp: In function 'void solve()':
politicaldevelopment.cpp:34:17: warning: unused variable 'cnt' [-Wunused-variable]
   34 |             int cnt = 1;
      |                 ^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 3 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1780 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 596 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 3 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1780 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 3 ms 1748 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 3 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 1748 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 3 ms 1748 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 3 ms 1492 KB Output is correct
21 Correct 2 ms 1492 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Incorrect 4 ms 1748 KB Output isn't correct
24 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 573 ms 26268 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 502 ms 26144 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 446 ms 26096 KB Output is correct
16 Correct 495 ms 26044 KB Output is correct
17 Correct 425 ms 26092 KB Output is correct
18 Correct 543 ms 26144 KB Output is correct

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 3 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1780 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 3 ms 1748 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 3 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 1748 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 3 ms 1748 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 3 ms 1492 KB Output is correct
21 Correct 2 ms 1492 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Incorrect 4 ms 1748 KB Output isn't correct
24 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 3 ms 1620 KB Output is correct
4 Correct 3 ms 1748 KB Output is correct
5 Correct 3 ms 1780 KB Output is correct
6 Correct 3 ms 1748 KB Output is correct
7 Correct 4 ms 1748 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 3 ms 1748 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 3 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 1748 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 3 ms 1748 KB Output is correct
19 Correct 1 ms 596 KB Output is correct
20 Correct 3 ms 1492 KB Output is correct
21 Correct 2 ms 1492 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Incorrect 4 ms 1748 KB Output isn't correct
24 Halted 0 ms 0 KB -