oj.uz

Submission #300489

# Submission time Handle Problem Language Result Execution time Memory
300489 2020-09-17T08:05:30 Z 20160161simone Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 282 ms 23928 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

const int N=1e3+10;
int f[N][4];
int Find(int x,int op){
	if(f[x][op]==x) return x;
	else return f[x][op]=Find(f[x][op],op);
}
void Union(int x,int y,int op){
	x=Find(x,op),y=Find(y,op);
	if(x==y) return;
	f[y][op]=x;
}
int rol[N][N],len[N],vis[N][N];

int construct(std::vector<std::vector<int>> p) {
	int n = p.size(),tf=0;
	for(int i=0;i<n;i++) f[i][1]=f[i][2]=i;
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==3) return 0;
			if(p[i][j]==1){
				Union(i,j,1);
				tf=1;
			}
			if(p[i][j]==2){
				Union(i,j,2);
				tf=1;
			}
		}
	}
	vector< vector<int> > ans;
	for(int i=0;i<n;i++){
		vector<int> row;
		for(int j=0;j<n;j++) row.push_back(0);
		ans.push_back(row);
	}
	for(int i=0;i<n;i++){
		int t1=Find(i,1),t2=Find(t1,2);
		if(t1!=t2 && Find(t1,1)==Find(t2,1)){
			f[t1][1]=t2,f[t2][1]=t2;
			t1=t2;
		}
		if(t1!=i){
			ans[t1][i]=ans[i][t1]=1;
		}
		if(t2!=t1){
			if(!vis[t2][t1]) rol[t2][++len[t2]]=t1;
			vis[t2][t1]=1;
		}
	}
	//for(int i=0;i<n;i++) cout<<Find(i,1)<<" "<<Find(i,2)<<endl;
	for(int i=0;i<n;i++){
		if(len[i]){
			if(len[i]==1) return 0;
			rol[i][0]=i;
			for(int j=0;j<len[i];j++){
				ans[ rol[i][j] ][ rol[i][j+1] ]=ans[ rol[i][j+1] ][ rol[i][j] ]=1;
			}
			ans[ rol[i][len[i]] ][i]=ans[i][ rol[i][len[i]] ]=1;
		}
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==0){
				if(Find(i,1)==Find(j,1) || Find(i,2)==Find(j,2)) return 0;
			}
		}
	}

	build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:19:19: warning: variable 'tf' set but not used [-Wunused-but-set-variable]
   19 |  int n = p.size(),tf=0;
      |                   ^~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 10 ms 1280 KB Output is correct
7 Correct 249 ms 22136 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 10 ms 1280 KB Output is correct
7 Correct 249 ms 22136 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 131 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 64 ms 5880 KB Output is correct
21 Correct 242 ms 22232 KB Output is correct
22 Correct 250 ms 22136 KB Output is correct
23 Correct 257 ms 22136 KB Output is correct
24 Correct 282 ms 22264 KB Output is correct
25 Correct 109 ms 12152 KB Output is correct
26 Correct 102 ms 12152 KB Output is correct
27 Correct 253 ms 22136 KB Output is correct
28 Correct 238 ms 22136 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 10 ms 1280 KB Output is correct
9 Correct 239 ms 22136 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 256 ms 22136 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 119 ms 12152 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 62 ms 6136 KB Output is correct
22 Correct 246 ms 22392 KB Output is correct
23 Correct 243 ms 23928 KB Output is correct
24 Correct 260 ms 22136 KB Output is correct
25 Correct 107 ms 12252 KB Output is correct
26 Correct 104 ms 12280 KB Output is correct
27 Correct 253 ms 23928 KB Output is correct
28 Correct 256 ms 22264 KB Output is correct
29 Correct 107 ms 12280 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 65 ms 5880 KB Output is correct
5 Correct 261 ms 22268 KB Output is correct
6 Correct 261 ms 22280 KB Output is correct
7 Correct 255 ms 22136 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 61 ms 6136 KB Output is correct
10 Correct 242 ms 22264 KB Output is correct
11 Correct 249 ms 23908 KB Output is correct
12 Correct 261 ms 22136 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 63 ms 6264 KB Output is correct
17 Correct 251 ms 22264 KB Output is correct
18 Correct 246 ms 22236 KB Output is correct
19 Correct 246 ms 22392 KB Output is correct
20 Correct 240 ms 22136 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 10 ms 1280 KB Output is correct
7 Correct 249 ms 22136 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 131 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 64 ms 5880 KB Output is correct
21 Correct 242 ms 22232 KB Output is correct
22 Correct 250 ms 22136 KB Output is correct
23 Correct 257 ms 22136 KB Output is correct
24 Correct 282 ms 22264 KB Output is correct
25 Correct 109 ms 12152 KB Output is correct
26 Correct 102 ms 12152 KB Output is correct
27 Correct 253 ms 22136 KB Output is correct
28 Correct 238 ms 22136 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 239 ms 22136 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 256 ms 22136 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 119 ms 12152 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 62 ms 6136 KB Output is correct
50 Correct 246 ms 22392 KB Output is correct
51 Correct 243 ms 23928 KB Output is correct
52 Correct 260 ms 22136 KB Output is correct
53 Correct 107 ms 12252 KB Output is correct
54 Correct 104 ms 12280 KB Output is correct
55 Correct 253 ms 23928 KB Output is correct
56 Correct 256 ms 22264 KB Output is correct
57 Correct 107 ms 12280 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 768 KB Output is correct
61 Correct 127 ms 12248 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 74 ms 6264 KB Output is correct
66 Correct 108 ms 12280 KB Output is correct
67 Correct 123 ms 12280 KB Output is correct
68 Correct 123 ms 12408 KB Output is correct
69 Correct 101 ms 12280 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 10 ms 1280 KB Output is correct
7 Correct 249 ms 22136 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 131 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 64 ms 5880 KB Output is correct
21 Correct 242 ms 22232 KB Output is correct
22 Correct 250 ms 22136 KB Output is correct
23 Correct 257 ms 22136 KB Output is correct
24 Correct 282 ms 22264 KB Output is correct
25 Correct 109 ms 12152 KB Output is correct
26 Correct 102 ms 12152 KB Output is correct
27 Correct 253 ms 22136 KB Output is correct
28 Correct 238 ms 22136 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 239 ms 22136 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 256 ms 22136 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 119 ms 12152 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 62 ms 6136 KB Output is correct
50 Correct 246 ms 22392 KB Output is correct
51 Correct 243 ms 23928 KB Output is correct
52 Correct 260 ms 22136 KB Output is correct
53 Correct 107 ms 12252 KB Output is correct
54 Correct 104 ms 12280 KB Output is correct
55 Correct 253 ms 23928 KB Output is correct
56 Correct 256 ms 22264 KB Output is correct
57 Correct 107 ms 12280 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 65 ms 5880 KB Output is correct
62 Correct 261 ms 22268 KB Output is correct
63 Correct 261 ms 22280 KB Output is correct
64 Correct 255 ms 22136 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 61 ms 6136 KB Output is correct
67 Correct 242 ms 22264 KB Output is correct
68 Correct 249 ms 23908 KB Output is correct
69 Correct 261 ms 22136 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 512 KB Output is correct
72 Correct 1 ms 384 KB Output is correct
73 Correct 63 ms 6264 KB Output is correct
74 Correct 251 ms 22264 KB Output is correct
75 Correct 246 ms 22236 KB Output is correct
76 Correct 246 ms 22392 KB Output is correct
77 Correct 240 ms 22136 KB Output is correct
78 Correct 0 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 768 KB Output is correct
81 Correct 127 ms 12248 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 74 ms 6264 KB Output is correct
86 Correct 108 ms 12280 KB Output is correct
87 Correct 123 ms 12280 KB Output is correct
88 Correct 123 ms 12408 KB Output is correct
89 Correct 101 ms 12280 KB Output is correct
90 Correct 1 ms 256 KB Output is correct
91 Correct 1 ms 256 KB Output is correct
92 Correct 5 ms 640 KB Output is correct
93 Correct 105 ms 8184 KB Output is correct
94 Correct 1 ms 256 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 1 ms 256 KB Output is correct
97 Correct 24 ms 2304 KB Output is correct
98 Correct 96 ms 8184 KB Output is correct
99 Correct 99 ms 8184 KB Output is correct
100 Correct 102 ms 8280 KB Output is correct
101 Correct 95 ms 8184 KB Output is correct
102 Correct 97 ms 8184 KB Output is correct
103 Correct 99 ms 8184 KB Output is correct
104 Correct 98 ms 8188 KB Output is correct
105 Correct 102 ms 8280 KB Output is correct