oj.uz

답안 #647873

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
647873 2022-10-04T10:23:31 Z mychecksedad Political Development (BOI17_politicaldevelopment) C++17
16 / 100
 17 ms 24448 KB 
/* Author : Mychecksdead */
#include<bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define oset tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 1e5+10, F = 2147483646, K = 20;


int n, k;
vector<int> g[N], path;
vector<bool> vis(N);
void dfs(int v, int p){
    vis[v] = 1;
    path.pb(v);
    for(int u: g[v]){
        if(u != p){
            if(vis[u]){
                if(path[path.size() - 3] == u){
                    cout << 3;
                    exit(0);
                }
            }else{
                dfs(u, v);
            }
        }    
    }
    path.pop_back();
}

void solve(){
    cin >> n >> k;
    for(int i = 0; i < n; ++i){
        int d; cin >> d;
        for(int j = 0; j < d; ++j){
            int x; cin >> x; g[i].pb(x);
        }
    }
    if(k <= 2){
        for(int i = 0; i < n; ++i){
            if(g[i].size()){
                cout << 2;
                return;
            }
        }
        cout << 1;
        return;
    }
    if(k <= 3){
        for(int i = 0; i < n; ++i) if(!vis[i]) dfs(i, i);
        for(int i = 0; i < n; ++i){
            if(g[i].size()){
                cout << 2;
                return;
            }
        }
        cout << 1;
        return;
    }
}   





int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:77:16: warning: unused variable 'aa' [-Wunused-variable]
   77 |     int T = 1, aa;
      |                ^~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23892 KB Output is correct
2 Correct 13 ms 23840 KB Output is correct
3 Correct 14 ms 24020 KB Output is correct
4 Correct 16 ms 24028 KB Output is correct
5 Correct 14 ms 24020 KB Output is correct
6 Correct 13 ms 24016 KB Output is correct
7 Correct 14 ms 24020 KB Output is correct
8 Correct 13 ms 23936 KB Output is correct
9 Correct 13 ms 23892 KB Output is correct
10 Correct 16 ms 23892 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23892 KB Output is correct
2 Correct 13 ms 23840 KB Output is correct
3 Correct 14 ms 24020 KB Output is correct
4 Correct 16 ms 24028 KB Output is correct
5 Correct 14 ms 24020 KB Output is correct
6 Correct 13 ms 24016 KB Output is correct
7 Correct 14 ms 24020 KB Output is correct
8 Correct 13 ms 23936 KB Output is correct
9 Correct 13 ms 23892 KB Output is correct
10 Correct 16 ms 23892 KB Output is correct
11 Correct 14 ms 24020 KB Output is correct
12 Correct 14 ms 24048 KB Output is correct
13 Correct 13 ms 23872 KB Output is correct
14 Correct 14 ms 24164 KB Output is correct
15 Correct 13 ms 23936 KB Output is correct
16 Correct 16 ms 24140 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 14 ms 24148 KB Output is correct
19 Correct 13 ms 23864 KB Output is correct
20 Correct 17 ms 24072 KB Output is correct
21 Correct 14 ms 24040 KB Output is correct
22 Correct 16 ms 23904 KB Output is correct
23 Correct 15 ms 24148 KB Output is correct
24 Correct 13 ms 23820 KB Output is correct
25 Correct 14 ms 24148 KB Output is correct
26 Correct 14 ms 24148 KB Output is correct
27 Correct 14 ms 24404 KB Output is correct
28 Correct 15 ms 24244 KB Output is correct
29 Correct 14 ms 24448 KB Output is correct
30 Correct 15 ms 24152 KB Output is correct
31 Correct 15 ms 24276 KB Output is correct
32 Correct 16 ms 24180 KB Output is correct
33 Correct 16 ms 24328 KB Output is correct
34 Correct 16 ms 24372 KB Output is correct
35 Correct 13 ms 24072 KB Output is correct
36 Correct 14 ms 24108 KB Output is correct
37 Correct 16 ms 24116 KB Output is correct
38 Correct 13 ms 23892 KB Output is correct
39 Correct 13 ms 23992 KB Output is correct
40 Correct 16 ms 24148 KB Output is correct
41 Correct 14 ms 23900 KB Output is correct
42 Correct 16 ms 24196 KB Output is correct
43 Correct 16 ms 24180 KB Output is correct

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 13 ms 23892 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23892 KB Output is correct
2 Correct 13 ms 23840 KB Output is correct
3 Correct 14 ms 24020 KB Output is correct
4 Correct 16 ms 24028 KB Output is correct
5 Correct 14 ms 24020 KB Output is correct
6 Correct 13 ms 24016 KB Output is correct
7 Correct 14 ms 24020 KB Output is correct
8 Correct 13 ms 23936 KB Output is correct
9 Correct 13 ms 23892 KB Output is correct
10 Correct 16 ms 23892 KB Output is correct
11 Correct 14 ms 24020 KB Output is correct
12 Correct 14 ms 24048 KB Output is correct
13 Correct 13 ms 23872 KB Output is correct
14 Correct 14 ms 24164 KB Output is correct
15 Correct 13 ms 23936 KB Output is correct
16 Correct 16 ms 24140 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 14 ms 24148 KB Output is correct
19 Correct 13 ms 23864 KB Output is correct
20 Correct 17 ms 24072 KB Output is correct
21 Correct 14 ms 24040 KB Output is correct
22 Correct 16 ms 23904 KB Output is correct
23 Correct 15 ms 24148 KB Output is correct
24 Correct 13 ms 23820 KB Output is correct
25 Correct 14 ms 24148 KB Output is correct
26 Correct 14 ms 24148 KB Output is correct
27 Correct 14 ms 24404 KB Output is correct
28 Correct 15 ms 24244 KB Output is correct
29 Correct 14 ms 24448 KB Output is correct
30 Correct 15 ms 24152 KB Output is correct
31 Correct 15 ms 24276 KB Output is correct
32 Correct 16 ms 24180 KB Output is correct
33 Correct 16 ms 24328 KB Output is correct
34 Correct 16 ms 24372 KB Output is correct
35 Correct 13 ms 24072 KB Output is correct
36 Correct 14 ms 24108 KB Output is correct
37 Correct 16 ms 24116 KB Output is correct
38 Correct 13 ms 23892 KB Output is correct
39 Correct 13 ms 23992 KB Output is correct
40 Correct 16 ms 24148 KB Output is correct
41 Correct 14 ms 23900 KB Output is correct
42 Correct 16 ms 24196 KB Output is correct
43 Correct 16 ms 24180 KB Output is correct
44 Incorrect 16 ms 24328 KB Output isn't correct
45 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23892 KB Output is correct
2 Correct 13 ms 23840 KB Output is correct
3 Correct 14 ms 24020 KB Output is correct
4 Correct 16 ms 24028 KB Output is correct
5 Correct 14 ms 24020 KB Output is correct
6 Correct 13 ms 24016 KB Output is correct
7 Correct 14 ms 24020 KB Output is correct
8 Correct 13 ms 23936 KB Output is correct
9 Correct 13 ms 23892 KB Output is correct
10 Correct 16 ms 23892 KB Output is correct
11 Correct 14 ms 24020 KB Output is correct
12 Correct 14 ms 24048 KB Output is correct
13 Correct 13 ms 23872 KB Output is correct
14 Correct 14 ms 24164 KB Output is correct
15 Correct 13 ms 23936 KB Output is correct
16 Correct 16 ms 24140 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 14 ms 24148 KB Output is correct
19 Correct 13 ms 23864 KB Output is correct
20 Correct 17 ms 24072 KB Output is correct
21 Correct 14 ms 24040 KB Output is correct
22 Correct 16 ms 23904 KB Output is correct
23 Correct 15 ms 24148 KB Output is correct
24 Correct 13 ms 23820 KB Output is correct
25 Correct 14 ms 24148 KB Output is correct
26 Correct 14 ms 24148 KB Output is correct
27 Correct 14 ms 24404 KB Output is correct
28 Correct 15 ms 24244 KB Output is correct
29 Correct 14 ms 24448 KB Output is correct
30 Correct 15 ms 24152 KB Output is correct
31 Correct 15 ms 24276 KB Output is correct
32 Correct 16 ms 24180 KB Output is correct
33 Correct 16 ms 24328 KB Output is correct
34 Correct 16 ms 24372 KB Output is correct
35 Correct 13 ms 24072 KB Output is correct
36 Correct 14 ms 24108 KB Output is correct
37 Correct 16 ms 24116 KB Output is correct
38 Correct 13 ms 23892 KB Output is correct
39 Correct 13 ms 23992 KB Output is correct
40 Correct 16 ms 24148 KB Output is correct
41 Correct 14 ms 23900 KB Output is correct
42 Correct 16 ms 24196 KB Output is correct
43 Correct 16 ms 24180 KB Output is correct
44 Incorrect 15 ms 23892 KB Output isn't correct
45 Halted 0 ms 0 KB -