oj.uz

Submission #595303

# Submission time Handle Problem Language Result Execution time Memory
595303 2022-07-13T14:43:20 Z Red_Inside Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 171 ms 24016 KB 
#include "supertrees.h"


#include <bits/stdc++.h>

#define ll long long
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define o cout<<"BUG"<<endl;
#define FOR(i, j, n) for(int j = i; j < n; ++j)
#define forn(i, j, n) for(int j = i; j <= n; ++j)
#define nfor(i, j, n) for(int j = n; j >= i; --j)
#define all(v) v.begin(), v.end()
#define ld long double
#define ull unsigned long long

using namespace std;
const int maxn=1e6+10,LOG=17,mod=998244353;
int block = 226, timer = 0;
const ld EPS = 1e-18;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

#define bt(i) (1 << (i))
//#define int ll
const int inf=2e9;
#define y1 yy
#define prev pre
#define pii pair <int, int>

int used[maxn], good[maxn], root[maxn];

int construct(vector <vector <int> > a)
{
	int n = a[0].size();
	vector <vector <int> > ans;
	ans = a;
	forn(0, i, n-1) forn(0, j, n-1) ans[i][j] = 0;
	vector <int> roots;
	forn(0, i, n-1)
	{
		if(a[i][i] != 1) return 0;
		if(used[i]) continue;
		vector <int> vec;
		forn(0, j, n-1)
		{
			if(a[i][j] == 1) 
			{
				vec.pb(j);
				used[j] = 1;
			}
		}
		FOR(0, j, vec.size())
		{
			forn(0, k, n-1)
			{
				if(a[i][k] == 1 && a[vec[j]][k] != 1) return 0;
				if(a[i][k] != 1 && a[vec[j]][k] == 1) return 0;
			}
		}
		FOR(1, j, vec.size())
		{
			ans[vec[j]][vec[j-1]] = 1;
			ans[vec[j-1]][vec[j]] = 1;
		}
//		cout << "NEW TREE: ";
//		for(auto j : vec) cout << j << " ";
//		cout << endl;
		for(auto j : vec) root[j] = vec[0];
		roots.pb(vec[0]);
	}
	forn(0, i, n-1) used[i] = 0;
	FOR(0, i, roots.size())
	{
		if(used[i]) continue;
		vector <int> vec;
		FOR(0, j, roots.size())
		{
			if(a[roots[i]][roots[j]] == 2)
			{
				used[j] = i + 1;
				vec.pb(roots[j]);
			}
		}
		vec.pb(roots[i]);
		if(vec.size() == 2) return 0;
		if(vec.size() == 1) continue;
		FOR(0, j, vec.size())
		{
			FOR(j + 1, k, vec.size())
			{
				if(a[vec[j]][vec[k]] != 2) return 0;
			}
		}
		FOR(0, j, vec.size())
		{
			forn(0, k, n-1)
			{
//				cout << vec[j] << ' ' << k << " " << root[k] << " " << roots[i] << endl;
				if(a[vec[j]][k] == 2 && root[k] != roots[i] && a[roots[i]][root[k]] != 2) return 0;
				if(a[vec[j]][k] == 0 && a[roots[i]][root[k]] != 0) return 0;
			}
		}
		FOR(1, j, vec.size())
		{
			ans[vec[j]][vec[j-1]] = 1;
			ans[vec[j-1]][vec[j]] = 1;
		}
		ans[vec[0]][vec.back()] = 1;
		ans[vec.back()][vec[0]] = 1;
	}
	build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   55 |   FOR(0, j, vec.size())
      |          ~~~~~~~~~~~~~                 
supertrees.cpp:55:3: note: in expansion of macro 'FOR'
   55 |   FOR(0, j, vec.size())
      |   ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   63 |   FOR(1, j, vec.size())
      |          ~~~~~~~~~~~~~                 
supertrees.cpp:63:3: note: in expansion of macro 'FOR'
   63 |   FOR(1, j, vec.size())
      |   ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   75 |  FOR(0, i, roots.size())
      |         ~~~~~~~~~~~~~~~                
supertrees.cpp:75:2: note: in expansion of macro 'FOR'
   75 |  FOR(0, i, roots.size())
      |  ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   79 |   FOR(0, j, roots.size())
      |          ~~~~~~~~~~~~~~~               
supertrees.cpp:79:3: note: in expansion of macro 'FOR'
   79 |   FOR(0, j, roots.size())
      |   ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   90 |   FOR(0, j, vec.size())
      |          ~~~~~~~~~~~~~                 
supertrees.cpp:90:3: note: in expansion of macro 'FOR'
   90 |   FOR(0, j, vec.size())
      |   ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   92 |    FOR(j + 1, k, vec.size())
      |               ~~~~~~~~~~~~~            
supertrees.cpp:92:4: note: in expansion of macro 'FOR'
   92 |    FOR(j + 1, k, vec.size())
      |    ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
   97 |   FOR(0, j, vec.size())
      |          ~~~~~~~~~~~~~                 
supertrees.cpp:97:3: note: in expansion of macro 'FOR'
   97 |   FOR(0, j, vec.size())
      |   ^~~
supertrees.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, j, n) for(int j = i; j < n; ++j)
......
  106 |   FOR(1, j, vec.size())
      |          ~~~~~~~~~~~~~                 
supertrees.cpp:106:3: note: in expansion of macro 'FOR'
  106 |   FOR(1, j, vec.size())
      |   ^~~

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 308 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 7 ms 1232 KB Output is correct
7 Correct 159 ms 22308 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 308 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 7 ms 1232 KB Output is correct
7 Correct 159 ms 22308 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 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 163 ms 22252 KB Output is correct
14 Correct 0 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 77 ms 12308 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 6036 KB Output is correct
21 Correct 167 ms 22272 KB Output is correct
22 Correct 164 ms 22328 KB Output is correct
23 Correct 164 ms 22284 KB Output is correct
24 Correct 166 ms 22532 KB Output is correct
25 Correct 73 ms 12400 KB Output is correct
26 Correct 70 ms 12348 KB Output is correct
27 Correct 165 ms 22380 KB Output is correct
28 Correct 164 ms 22432 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 0 ms 212 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 7 ms 1236 KB Output is correct
9 Correct 161 ms 22284 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1220 KB Output is correct
13 Correct 166 ms 22396 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 79 ms 12316 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 308 KB Output is correct
20 Correct 0 ms 312 KB Output is correct
21 Correct 43 ms 6032 KB Output is correct
22 Correct 171 ms 22216 KB Output is correct
23 Correct 158 ms 22288 KB Output is correct
24 Correct 169 ms 22248 KB Output is correct
25 Correct 73 ms 12344 KB Output is correct
26 Correct 73 ms 12316 KB Output is correct
27 Correct 160 ms 23988 KB Output is correct
28 Correct 168 ms 24016 KB Output is correct
29 Correct 77 ms 14028 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 40 ms 5956 KB Output is correct
5 Correct 169 ms 22312 KB Output is correct
6 Correct 167 ms 22256 KB Output is correct
7 Correct 168 ms 22268 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 41 ms 6040 KB Output is correct
10 Correct 165 ms 22300 KB Output is correct
11 Correct 162 ms 22320 KB Output is correct
12 Correct 168 ms 22232 KB Output is correct
13 Correct 0 ms 316 KB Output is correct
14 Correct 0 ms 308 KB Output is correct
15 Correct 1 ms 312 KB Output is correct
16 Correct 41 ms 5964 KB Output is correct
17 Correct 168 ms 22308 KB Output is correct
18 Correct 162 ms 22216 KB Output is correct
19 Correct 163 ms 22396 KB Output is correct
20 Correct 161 ms 22264 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 308 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 7 ms 1232 KB Output is correct
7 Correct 159 ms 22308 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 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 163 ms 22252 KB Output is correct
14 Correct 0 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 77 ms 12308 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 6036 KB Output is correct
21 Correct 167 ms 22272 KB Output is correct
22 Correct 164 ms 22328 KB Output is correct
23 Correct 164 ms 22284 KB Output is correct
24 Correct 166 ms 22532 KB Output is correct
25 Correct 73 ms 12400 KB Output is correct
26 Correct 70 ms 12348 KB Output is correct
27 Correct 165 ms 22380 KB Output is correct
28 Correct 164 ms 22432 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 0 ms 212 KB Output is correct
33 Correct 0 ms 308 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 161 ms 22284 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1220 KB Output is correct
41 Correct 166 ms 22396 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 79 ms 12316 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 308 KB Output is correct
48 Correct 0 ms 312 KB Output is correct
49 Correct 43 ms 6032 KB Output is correct
50 Correct 171 ms 22216 KB Output is correct
51 Correct 158 ms 22288 KB Output is correct
52 Correct 169 ms 22248 KB Output is correct
53 Correct 73 ms 12344 KB Output is correct
54 Correct 73 ms 12316 KB Output is correct
55 Correct 160 ms 23988 KB Output is correct
56 Correct 168 ms 24016 KB Output is correct
57 Correct 77 ms 14028 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 4 ms 836 KB Output is correct
61 Correct 75 ms 14080 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 312 KB Output is correct
65 Correct 41 ms 6272 KB Output is correct
66 Correct 72 ms 14080 KB Output is correct
67 Correct 72 ms 14076 KB Output is correct
68 Correct 72 ms 14088 KB Output is correct
69 Correct 77 ms 14080 KB Output is correct

Subtask #6
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 308 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 7 ms 1232 KB Output is correct
7 Correct 159 ms 22308 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 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 163 ms 22252 KB Output is correct
14 Correct 0 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 77 ms 12308 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 6036 KB Output is correct
21 Correct 167 ms 22272 KB Output is correct
22 Correct 164 ms 22328 KB Output is correct
23 Correct 164 ms 22284 KB Output is correct
24 Correct 166 ms 22532 KB Output is correct
25 Correct 73 ms 12400 KB Output is correct
26 Correct 70 ms 12348 KB Output is correct
27 Correct 165 ms 22380 KB Output is correct
28 Correct 164 ms 22432 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 0 ms 212 KB Output is correct
33 Correct 0 ms 308 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 161 ms 22284 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1220 KB Output is correct
41 Correct 166 ms 22396 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 79 ms 12316 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 308 KB Output is correct
48 Correct 0 ms 312 KB Output is correct
49 Correct 43 ms 6032 KB Output is correct
50 Correct 171 ms 22216 KB Output is correct
51 Correct 158 ms 22288 KB Output is correct
52 Correct 169 ms 22248 KB Output is correct
53 Correct 73 ms 12344 KB Output is correct
54 Correct 73 ms 12316 KB Output is correct
55 Correct 160 ms 23988 KB Output is correct
56 Correct 168 ms 24016 KB Output is correct
57 Correct 77 ms 14028 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 40 ms 5956 KB Output is correct
62 Correct 169 ms 22312 KB Output is correct
63 Correct 167 ms 22256 KB Output is correct
64 Correct 168 ms 22268 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 41 ms 6040 KB Output is correct
67 Correct 165 ms 22300 KB Output is correct
68 Correct 162 ms 22320 KB Output is correct
69 Correct 168 ms 22232 KB Output is correct
70 Correct 0 ms 316 KB Output is correct
71 Correct 0 ms 308 KB Output is correct
72 Correct 1 ms 312 KB Output is correct
73 Correct 41 ms 5964 KB Output is correct
74 Correct 168 ms 22308 KB Output is correct
75 Correct 162 ms 22216 KB Output is correct
76 Correct 163 ms 22396 KB Output is correct
77 Correct 161 ms 22264 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 4 ms 836 KB Output is correct
81 Correct 75 ms 14080 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 312 KB Output is correct
85 Correct 41 ms 6272 KB Output is correct
86 Correct 72 ms 14080 KB Output is correct
87 Correct 72 ms 14076 KB Output is correct
88 Correct 72 ms 14088 KB Output is correct
89 Correct 77 ms 14080 KB Output is correct
90 Correct 0 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 75 ms 14092 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Incorrect 1 ms 308 KB Answer gives possible 1 while actual possible 0
96 Halted 0 ms 0 KB -