oj.uz

Submission #832211

# Submission time Handle Problem Language Result Execution time Memory
832211 2023-08-21T06:48:32 Z penguinman Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 233 ms 24020 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

using std::cin;
using std::cout;
using std::endl;
using std::vector;
using std::string;
using ll = long long;
using vi = vector<ll>;
using vii = vector<vi>;
using pii = std::pair<ll,ll>;

#define ln "\n"
#define rep(i,j,k) for(ll i=ll(j); i<ll(k); i++)
#define REP(i,j,k) for(ll i=ll(j); i<=ll(k); i++)
#define per(i,j,k) for(ll i=ll(j); i>=ll(k); i--)
#define pb emplace_back
#define mp std::make_pair
#define mtp std::make_tuple
#define all(a) a.begin(),a.end()

int construct(std::vector<std::vector<int>> p) {
	int N = p.size();
	vector<vector<int>> ans(N, vector<int>(N));
	vector<bool> flag(N);
	auto tree = [&](vi v){
		rep(i,1,v.size()){
			ans[v[i-1]][v[i]] = ans[v[i]][v[i-1]] = 1;
		}
		rep(i,0,v.size()){
			rep(j,i+1,v.size()){
				if(p[v[i]][v[j]] != 1) return true;
			}
		}
		return false;
	};
	auto loop = [&](vi v){
		if(v.size() == 2) return true;
		rep(i,0,v.size()){
			ans[v[(i+1)%v.size()]][v[i]] = ans[v[i]][v[(i+1)%v.size()]] = 1;
		}
		rep(i,0,v.size()){
			rep(j,i+1,v.size()){
				if(p[v[i]][v[j]] != 2) return true;
			}
		}
		return false;
	};
	vector<bool> mem_flag(N);
	rep(i,0,N){
		if(flag[i]) continue;
		flag[i] = true;
		std::queue<ll> que;
		que.push(i);
		vi v;
		while(!que.empty()){
			ll now = que.front(); que.pop();
			v.pb(now);
			rep(next, 0, N){
				if(p[now][next]){
					if(!flag[next]){
						flag[next] = true;
						que.push(next);
					}
				}
			}
		}
		vi cnt(4);
		for(auto el: v){
			rep(j,0,N){
				if(el == j) continue;
				cnt[p[el][j]]++;
			}
		}
		if(cnt[2] == 0){
			if(tree(v)) return 0;
			continue;
		}
		if(cnt[1] == 0){
			if(loop(v)) return 0;
			continue;
		}
		vector<pii> data;
		for(auto el: v){
			ll cnt = 0;
			rep(j,0,N){
				if(el == j) continue;
				if(p[el][j] == 1) cnt++;
			}
			data.pb(mp(cnt, el));
		}
		sort(all(data));
		reverse(all(data));
		vi par;
		vii member;
		for(auto el: data){
			if(mem_flag[el.second]) continue;
			mem_flag[el.second] = true;
			vi mb;
			par.pb(el.second);
			rep(j,0,N){
				if(el.second == j) continue;
				if(p[el.second][j] == 1){
					mb.pb(j);
					if(mem_flag[j]) return 0;
					mem_flag[j] = true;
				}
			}
			member.pb(mb);
		}
		if(par.size() <= 2) return 0;
		rep(j,0,par.size()){
			ans[par[j]][par[(j+1)%par.size()]] = ans[par[(j+1)%par.size()]][par[j]] = 1;
		}
		rep(j,0,par.size()){
			for(auto el: member[j]) ans[par[j]][el] = ans[el][par[j]] = 1;
		}
		rep(j,0,par.size()){
			rep(k,j+1,par.size()){
				if(p[par[j]][par[k]] != 2) return 0;
				for(auto el1: member[j]){
					for(auto el2: member[k]){
						if(p[el1][el2] != 2) return 0;
					}
				}
			}
			for(auto el1: member[j]){
				for(auto el2: member[j]){
					if(el1 == el2) continue;
					if(p[el1][el2] != 1) return 0;
				}
			}
		}
	}
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1120 KB Output is correct
7 Correct 163 ms 21972 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1120 KB Output is correct
7 Correct 163 ms 21972 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 152 ms 22100 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 71 ms 13140 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 40 ms 6236 KB Output is correct
21 Correct 160 ms 23028 KB Output is correct
22 Correct 160 ms 23008 KB Output is correct
23 Correct 201 ms 23104 KB Output is correct
24 Correct 149 ms 23120 KB Output is correct
25 Correct 97 ms 13248 KB Output is correct
26 Correct 59 ms 13164 KB Output is correct
27 Correct 164 ms 23172 KB Output is correct
28 Correct 174 ms 23076 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 7 ms 1272 KB Output is correct
9 Correct 161 ms 23300 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 157 ms 23448 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 820 KB Output is correct
17 Correct 70 ms 14072 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 300 KB Output is correct
21 Correct 40 ms 6260 KB Output is correct
22 Correct 158 ms 23564 KB Output is correct
23 Correct 162 ms 23596 KB Output is correct
24 Correct 169 ms 23712 KB Output is correct
25 Correct 68 ms 14096 KB Output is correct
26 Correct 107 ms 14064 KB Output is correct
27 Correct 233 ms 23992 KB Output is correct
28 Correct 161 ms 23972 KB Output is correct
29 Correct 60 ms 14068 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 50 ms 6140 KB Output is correct
5 Correct 157 ms 23920 KB Output is correct
6 Correct 157 ms 24012 KB Output is correct
7 Correct 160 ms 24012 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 37 ms 6196 KB Output is correct
10 Correct 170 ms 23992 KB Output is correct
11 Correct 162 ms 23928 KB Output is correct
12 Correct 157 ms 23900 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 296 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 45 ms 6220 KB Output is correct
17 Correct 160 ms 23948 KB Output is correct
18 Correct 168 ms 23904 KB Output is correct
19 Correct 172 ms 24020 KB Output is correct
20 Correct 159 ms 23984 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1120 KB Output is correct
7 Correct 163 ms 21972 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 152 ms 22100 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 71 ms 13140 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 40 ms 6236 KB Output is correct
21 Correct 160 ms 23028 KB Output is correct
22 Correct 160 ms 23008 KB Output is correct
23 Correct 201 ms 23104 KB Output is correct
24 Correct 149 ms 23120 KB Output is correct
25 Correct 97 ms 13248 KB Output is correct
26 Correct 59 ms 13164 KB Output is correct
27 Correct 164 ms 23172 KB Output is correct
28 Correct 174 ms 23076 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1272 KB Output is correct
37 Correct 161 ms 23300 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 157 ms 23448 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 820 KB Output is correct
45 Correct 70 ms 14072 KB Output is correct
46 Correct 1 ms 300 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 40 ms 6260 KB Output is correct
50 Correct 158 ms 23564 KB Output is correct
51 Correct 162 ms 23596 KB Output is correct
52 Correct 169 ms 23712 KB Output is correct
53 Correct 68 ms 14096 KB Output is correct
54 Correct 107 ms 14064 KB Output is correct
55 Correct 233 ms 23992 KB Output is correct
56 Correct 161 ms 23972 KB Output is correct
57 Correct 60 ms 14068 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 4 ms 852 KB Output is correct
61 Correct 71 ms 14140 KB Output is correct
62 Correct 2 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 38 ms 6264 KB Output is correct
66 Correct 59 ms 14028 KB Output is correct
67 Correct 61 ms 14080 KB Output is correct
68 Correct 59 ms 14028 KB Output is correct
69 Correct 57 ms 14068 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1120 KB Output is correct
7 Correct 163 ms 21972 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 152 ms 22100 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 71 ms 13140 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 40 ms 6236 KB Output is correct
21 Correct 160 ms 23028 KB Output is correct
22 Correct 160 ms 23008 KB Output is correct
23 Correct 201 ms 23104 KB Output is correct
24 Correct 149 ms 23120 KB Output is correct
25 Correct 97 ms 13248 KB Output is correct
26 Correct 59 ms 13164 KB Output is correct
27 Correct 164 ms 23172 KB Output is correct
28 Correct 174 ms 23076 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1272 KB Output is correct
37 Correct 161 ms 23300 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 157 ms 23448 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 820 KB Output is correct
45 Correct 70 ms 14072 KB Output is correct
46 Correct 1 ms 300 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 40 ms 6260 KB Output is correct
50 Correct 158 ms 23564 KB Output is correct
51 Correct 162 ms 23596 KB Output is correct
52 Correct 169 ms 23712 KB Output is correct
53 Correct 68 ms 14096 KB Output is correct
54 Correct 107 ms 14064 KB Output is correct
55 Correct 233 ms 23992 KB Output is correct
56 Correct 161 ms 23972 KB Output is correct
57 Correct 60 ms 14068 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 304 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 50 ms 6140 KB Output is correct
62 Correct 157 ms 23920 KB Output is correct
63 Correct 157 ms 24012 KB Output is correct
64 Correct 160 ms 24012 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 37 ms 6196 KB Output is correct
67 Correct 170 ms 23992 KB Output is correct
68 Correct 162 ms 23928 KB Output is correct
69 Correct 157 ms 23900 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 296 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 45 ms 6220 KB Output is correct
74 Correct 160 ms 23948 KB Output is correct
75 Correct 168 ms 23904 KB Output is correct
76 Correct 172 ms 24020 KB Output is correct
77 Correct 159 ms 23984 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 4 ms 852 KB Output is correct
81 Correct 71 ms 14140 KB Output is correct
82 Correct 2 ms 212 KB Output is correct
83 Correct 1 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 38 ms 6264 KB Output is correct
86 Correct 59 ms 14028 KB Output is correct
87 Correct 61 ms 14080 KB Output is correct
88 Correct 59 ms 14028 KB Output is correct
89 Correct 57 ms 14068 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 69 ms 14064 KB Output is correct
94 Correct 1 ms 296 KB Output is correct
95 Correct 1 ms 296 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 19 ms 3668 KB Output is correct
98 Correct 59 ms 14076 KB Output is correct
99 Correct 62 ms 14076 KB Output is correct
100 Correct 62 ms 14076 KB Output is correct
101 Correct 58 ms 14072 KB Output is correct
102 Correct 98 ms 14116 KB Output is correct
103 Correct 75 ms 14068 KB Output is correct
104 Correct 60 ms 14064 KB Output is correct
105 Correct 74 ms 14080 KB Output is correct