oj.uz

Submission #977352

# Submission time Handle Problem Language Result Execution time Memory
977352 2024-05-07T19:07:04 Z thegamercoder19 Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 171 ms 28412 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

#define M_PI       3.14159265358979323846
#define FILER 0
using ll = long long;
using ull = unsigned long long;
using ld = long double;
const ll MOD = pow(10, 9) + 7;
const ll INFL = 0x3f3f3f3f3f3f3f3f;
const ull INFUL = 0x3f3f3f3f3f3f3f3f;
const ll INFT = 0x3f3f3f3f;
const ull MAX = 1LL << 24;
const ll MODD = 998244353;
const double EPS = 1e-10;
#define V vector
#define pll pair<ll, ll>
#define pull2 pair<ull,ull>
#define MS multiset
#define M map
#define Q queue
#define PQ priority_queue
#define IOF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define FOR(typ,i,a,b,c) for(typ i = a; i < b; i += c)
#define FORR(typ,i,a,b,c) for(typ i = a; i > b; i -= c)
#define FORA(a,i) for(auto &i : a)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define sorta(a) sort(all(a))
#define sortd(a) sort(all(a), greater<ll>())
#define setp(x) setprecision(x)<<fixed
#define RET return
#define log(a,b) log(b)/log(a)
#define WH(s) while(s)
#define WHI(t) WH(t--)
#define YES cout<<"YES"<<endl;
#define NO cout<<"NO"<<endl;
#define Yes cout<<"Yes"<<endl;
#define No cout<<"No"<<endl;
#define YESNO(s) cout << (s ? "YES" : "NO") << endl;
#define YesNo(s) cout<<(s?"Yes":"No")<<endl;
#define TYP 0
using namespace std;

struct dsu
{
	V<ll> p, rnk;
	ll n;
	dsu(ll sz) :n(sz)
	{
		p.assign(n, 0);
		iota(all(p), 0);
		rnk.assign(n, 0);
	}
	void clear()
	{
		p.assign(n, 0);
		iota(all(p), 0);
		rnk.assign(n, 0);
	}
	ll find(ll u) { RET u == p[u] ? u : p[u] = find(p[u]); }
	bool unite(ll u, ll v)
	{
		u = find(u), v = find(v);
		if (u == v)RET 0;
		if (rnk[u] < rnk[v]) swap(u, v);
		p[v] = u, rnk[u]++;
		RET 1;
	}
};
ll n;
V<V<int>> p1, g, ans, g1;
V<int> chk2;
V<bool> us;
void dfs(ll u, ll p)
{
	p1[u][p]++;
	us[u] = 1;
	FORA(g[u], v)
		if (!us[v])dfs(v, p);
	us[u] = 0;
}
int construct(std::vector<std::vector<int>> p)
{
	n = p.size();
	p1.resize(n, V<int>(n)); ans.resize(n, V<int>(n)); g.resize(n);
	us.resize(n);
	FOR(ll, i, 0, n, 1)
		FOR(ll, j, 0, n, 1)
		if (p[i][j] == 3) RET 0;
	dsu dsu(n);
	g1.assign(n, {});
	FOR(ll, i, 0, n, 1)
		FOR(ll, j, 0, n, 1)
		if (p[i][j] == 1) dsu.unite(i, j);
	FOR(ll, i, 0, n, 1) g1[dsu.find(i)].push_back(i);
	FOR(ll, i, 0, n, 1)
	{
		if (g1[i].empty()) continue;
	    chk2.push_back(i);
		ll sz = (g1[i].size() - 1);
		FOR(ll, j, 0, sz, 1)
			g[g1[i][j]].push_back(g1[i][j + 1]), g[g1[i][j + 1]].push_back(g1[i][j]), ans[g1[i][j]][g1[i][j + 1]] = ans[g1[i][j + 1]][g1[i][j]] = 1;
	}
	g1.assign(n, {});
	dsu.clear();
	FORA(chk2, u)
		FORA(chk2, v)
		if (p[u][v] == 2)dsu.unite(u, v);
	FOR(ll, i, 0, n, 1) g1[dsu.find(i)].push_back(i);
	FOR(ll, i, 0, n, 1)
	{
		//can't create cycle with 2 nodes
		if (g1[i].size() <= 2)continue;
		FOR(ll, j, 0, g1[i].size() - 1, 1)
			g[g1[i][j]].push_back(g1[i][j + 1]), g[g1[i][j + 1]].push_back(g1[i][j]), ans[g1[i][j]][g1[i][j + 1]] = ans[g1[i][j + 1]][g1[i][j]] = 1;
		g[g1[i].back()].push_back(g1[i][0]), g[g1[i][0]].push_back(g1[i].back());
		ans[g1[i].back()][g1[i][0]] = ans[g1[i][0]][g1[i].back()] = 1;
	}
	FOR(ll, u, 0, n, 1)
		dfs(u, u);
	FOR(ll, i, 0, n, 1)FOR(ll, j, 0, n, 1)if (p1[i][j] != p[i][j])RET 0;
	build(ans);
	RET 1;
	
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:24:43: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 | #define FOR(typ,i,a,b,c) for(typ i = a; i < b; i += c)
......
  115 |   FOR(ll, j, 0, g1[i].size() - 1, 1)
      |           ~~~~~~~~~~~~~~~~~~~~~~           
supertrees.cpp:115:3: note: in expansion of macro 'FOR'
  115 |   FOR(ll, j, 0, g1[i].size() - 1, 1)
      |   ^~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 7 ms 1372 KB Output is correct
7 Correct 160 ms 27472 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 7 ms 1372 KB Output is correct
7 Correct 160 ms 27472 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 150 ms 27288 KB Output is correct
14 Correct 1 ms 444 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 960 KB Output is correct
17 Correct 82 ms 17492 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 38 ms 7252 KB Output is correct
21 Correct 148 ms 27472 KB Output is correct
22 Correct 145 ms 27400 KB Output is correct
23 Correct 157 ms 27528 KB Output is correct
24 Correct 171 ms 27480 KB Output is correct
25 Correct 66 ms 17528 KB Output is correct
26 Correct 62 ms 17496 KB Output is correct
27 Correct 157 ms 27476 KB Output is correct
28 Correct 151 ms 27488 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 600 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 150 ms 28244 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1448 KB Output is correct
13 Correct 169 ms 28096 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 6 ms 1112 KB Output is correct
17 Correct 92 ms 18312 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 38 ms 7256 KB Output is correct
22 Correct 157 ms 27988 KB Output is correct
23 Correct 146 ms 27984 KB Output is correct
24 Correct 168 ms 28244 KB Output is correct
25 Correct 65 ms 18260 KB Output is correct
26 Correct 68 ms 18308 KB Output is correct
27 Correct 158 ms 28128 KB Output is correct
28 Correct 165 ms 28412 KB Output is correct
29 Correct 66 ms 18184 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 38 ms 7300 KB Output is correct
5 Correct 149 ms 28168 KB Output is correct
6 Correct 148 ms 28036 KB Output is correct
7 Correct 159 ms 28188 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 7296 KB Output is correct
10 Correct 152 ms 28164 KB Output is correct
11 Correct 148 ms 27988 KB Output is correct
12 Correct 164 ms 28196 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 38 ms 7260 KB Output is correct
17 Correct 169 ms 28092 KB Output is correct
18 Correct 150 ms 27984 KB Output is correct
19 Correct 156 ms 28252 KB Output is correct
20 Correct 146 ms 27984 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 7 ms 1372 KB Output is correct
7 Correct 160 ms 27472 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 150 ms 27288 KB Output is correct
14 Correct 1 ms 444 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 960 KB Output is correct
17 Correct 82 ms 17492 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 38 ms 7252 KB Output is correct
21 Correct 148 ms 27472 KB Output is correct
22 Correct 145 ms 27400 KB Output is correct
23 Correct 157 ms 27528 KB Output is correct
24 Correct 171 ms 27480 KB Output is correct
25 Correct 66 ms 17528 KB Output is correct
26 Correct 62 ms 17496 KB Output is correct
27 Correct 157 ms 27476 KB Output is correct
28 Correct 151 ms 27488 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 600 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 6 ms 1372 KB Output is correct
37 Correct 150 ms 28244 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1448 KB Output is correct
41 Correct 169 ms 28096 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 6 ms 1112 KB Output is correct
45 Correct 92 ms 18312 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 38 ms 7256 KB Output is correct
50 Correct 157 ms 27988 KB Output is correct
51 Correct 146 ms 27984 KB Output is correct
52 Correct 168 ms 28244 KB Output is correct
53 Correct 65 ms 18260 KB Output is correct
54 Correct 68 ms 18308 KB Output is correct
55 Correct 158 ms 28128 KB Output is correct
56 Correct 165 ms 28412 KB Output is correct
57 Correct 66 ms 18184 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 4 ms 1112 KB Output is correct
61 Correct 87 ms 18344 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 1 ms 432 KB Output is correct
65 Correct 37 ms 7296 KB Output is correct
66 Correct 73 ms 18296 KB Output is correct
67 Correct 72 ms 18308 KB Output is correct
68 Correct 64 ms 18256 KB Output is correct
69 Correct 63 ms 18188 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 7 ms 1372 KB Output is correct
7 Correct 160 ms 27472 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 150 ms 27288 KB Output is correct
14 Correct 1 ms 444 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 960 KB Output is correct
17 Correct 82 ms 17492 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 38 ms 7252 KB Output is correct
21 Correct 148 ms 27472 KB Output is correct
22 Correct 145 ms 27400 KB Output is correct
23 Correct 157 ms 27528 KB Output is correct
24 Correct 171 ms 27480 KB Output is correct
25 Correct 66 ms 17528 KB Output is correct
26 Correct 62 ms 17496 KB Output is correct
27 Correct 157 ms 27476 KB Output is correct
28 Correct 151 ms 27488 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 600 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 6 ms 1372 KB Output is correct
37 Correct 150 ms 28244 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1448 KB Output is correct
41 Correct 169 ms 28096 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 6 ms 1112 KB Output is correct
45 Correct 92 ms 18312 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 38 ms 7256 KB Output is correct
50 Correct 157 ms 27988 KB Output is correct
51 Correct 146 ms 27984 KB Output is correct
52 Correct 168 ms 28244 KB Output is correct
53 Correct 65 ms 18260 KB Output is correct
54 Correct 68 ms 18308 KB Output is correct
55 Correct 158 ms 28128 KB Output is correct
56 Correct 165 ms 28412 KB Output is correct
57 Correct 66 ms 18184 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 38 ms 7300 KB Output is correct
62 Correct 149 ms 28168 KB Output is correct
63 Correct 148 ms 28036 KB Output is correct
64 Correct 159 ms 28188 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 39 ms 7296 KB Output is correct
67 Correct 152 ms 28164 KB Output is correct
68 Correct 148 ms 27988 KB Output is correct
69 Correct 164 ms 28196 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 38 ms 7260 KB Output is correct
74 Correct 169 ms 28092 KB Output is correct
75 Correct 150 ms 27984 KB Output is correct
76 Correct 156 ms 28252 KB Output is correct
77 Correct 146 ms 27984 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 4 ms 1112 KB Output is correct
81 Correct 87 ms 18344 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 1 ms 432 KB Output is correct
85 Correct 37 ms 7296 KB Output is correct
86 Correct 73 ms 18296 KB Output is correct
87 Correct 72 ms 18308 KB Output is correct
88 Correct 64 ms 18256 KB Output is correct
89 Correct 63 ms 18188 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 3 ms 956 KB Output is correct
93 Correct 67 ms 18052 KB Output is correct
94 Correct 1 ms 348 KB Output is correct
95 Correct 0 ms 344 KB Output is correct
96 Correct 1 ms 392 KB Output is correct
97 Correct 16 ms 4700 KB Output is correct
98 Correct 65 ms 18188 KB Output is correct
99 Correct 62 ms 18004 KB Output is correct
100 Correct 72 ms 18128 KB Output is correct
101 Correct 63 ms 18168 KB Output is correct
102 Correct 81 ms 18000 KB Output is correct
103 Correct 64 ms 18036 KB Output is correct
104 Correct 63 ms 18288 KB Output is correct
105 Correct 65 ms 18180 KB Output is correct