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Submission #768462

# Submission time Handle Problem Language Result Execution time Memory
768462 2023-06-28T07:42:22 Z Khizri Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 177 ms 34080 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define F first
#define S second
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
const int mxn=1e3+5;
int n,color[mxn],k,color2[mxn],sz,lst,arr[mxn][mxn];
vector<int>vt[mxn];
vector<int>vt2[mxn];
vector<vector<int>>p;
void dfs(int u){
    color[u]=k;
    sz++;
    for(int v:vt[u]){
        if(!color[v]){
            arr[u][v]=1;
            arr[v][u]=1;
            dfs(v);
        }
    }
}
void dfs2(int u){
    color2[u]=k;
    sz++;
    lst=u;
    for(int vv:vt2[u]){
        int v=color[vv];
        if(!color2[v]){
            arr[u][v]=1;
            arr[v][u]=1;
            dfs2(v);
        }
    }
}
int construct(vector<vector<int>> pp) {
    p=pp;
	n=p.size();
	for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(p[i][j]==1){
                vt[i+1].pb(j+1);
                vt[j+1].pb(i+1);
            }
            else if(p[i][j]==2){
                vt2[i+1].pb(j+1);
                vt2[j+1].pb(i+1);
            }
            else if(p[i][j]==3){
                //cout<<"X1"<<endl;
                return 0;
            }
        }
	}
	for(int i=1;i<=n;i++){
        if(!color[i]){
            k=i;
            sz=0;
            dfs(i);
        }
	}
	for(int i=1;i<=n;i++){
        for(int j=i+1;j<=n;j++){
            if(color[i]==color[j]&&p[i-1][j-1]!=1){
                //cout<<i<<' '<<j<<endl;
                //cout<<"X2"<<endl;
                return 0;
            }
        }
	}
	vector<pii>v;
	for(int id=1;id<=n;id++){
        int i=color[id];
        if(color2[i]) continue;
        k=i;
        sz=0;
        dfs2(i);
        if(lst==i){
            color2[i]=0;
        }
        else{
            if(sz<=2) return 0;
            arr[i][lst]=1;
            arr[lst][i]=1;
            v.pb({i,lst});
        }
	}
	for(int i=1;i<=n;i++){
        for(int j=i+1;j<=n;j++){
            if(color2[i]>0&&color2[i]==color2[j]&&p[i-1][j-1]!=2){
                //cout<<"X3"<<endl;
                return 0;
            }
        }
	}
	for(int i=1;i<=n;i++){
        for(int j=i+1;j<=n;j++){
            if(p[i-1][j-1]==2&&color2[color[i]]!=color2[color[j]]){
                int a=color[i];
                int b=color2[j];
                int c=color2[i];
                int d=color[j];
                if(a&&b){
                    arr[a][b]=1;
                    arr[b][a]=1;
                }
                else if(c&&d){
                    arr[c][d]=1;
                    arr[d][c]=1;
                }
            }
        }
	}
	vector<vector<int>>ans;
	for(int i=1;i<=n;i++){
        vector<int>vt;
        for(int j=1;j<=n;j++){
            vt.pb(arr[i][j]);
        }
        ans.pb(vt);
	}
	for(int i=0;i<n;i++){
        ans[i][i]=0;
	}
	build(ans);
	return 1;
}
/*
4
1 1 2 2
1 1 2 2
2 2 1 2
2 2 2 1
7
1 2 2 2 0 0 0
2 1 2 2 0 0 0
2 2 1 2 0 0 0
2 2 2 1 0 0 0
0 0 0 0 1 2 2
0 0 0 0 2 1 2
0 0 0 0 2 2 1
*/

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2436 KB Output is correct
7 Correct 173 ms 34080 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2436 KB Output is correct
7 Correct 173 ms 34080 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 156 ms 26172 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 69 ms 18872 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 42 ms 8628 KB Output is correct
21 Correct 174 ms 30536 KB Output is correct
22 Correct 152 ms 29652 KB Output is correct
23 Correct 164 ms 32072 KB Output is correct
24 Correct 167 ms 26308 KB Output is correct
25 Correct 61 ms 16588 KB Output is correct
26 Correct 59 ms 15676 KB Output is correct
27 Correct 165 ms 33052 KB Output is correct
28 Correct 169 ms 26208 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 7 ms 1364 KB Output is correct
9 Correct 153 ms 26052 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 9 ms 2388 KB Output is correct
13 Correct 160 ms 34080 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 71 ms 19004 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 40 ms 8636 KB Output is correct
22 Correct 156 ms 30540 KB Output is correct
23 Correct 156 ms 29980 KB Output is correct
24 Correct 161 ms 33100 KB Output is correct
25 Correct 58 ms 12348 KB Output is correct
26 Correct 68 ms 16700 KB Output is correct
27 Correct 158 ms 29896 KB Output is correct
28 Correct 162 ms 32072 KB Output is correct
29 Correct 63 ms 12344 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 40 ms 8656 KB Output is correct
5 Correct 156 ms 30532 KB Output is correct
6 Correct 158 ms 29644 KB Output is correct
7 Correct 160 ms 32088 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 42 ms 8652 KB Output is correct
10 Correct 160 ms 30520 KB Output is correct
11 Correct 177 ms 29988 KB Output is correct
12 Correct 164 ms 33048 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 40 ms 8628 KB Output is correct
17 Correct 166 ms 32428 KB Output is correct
18 Correct 159 ms 32428 KB Output is correct
19 Correct 155 ms 32088 KB Output is correct
20 Correct 154 ms 28228 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2436 KB Output is correct
7 Correct 173 ms 34080 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 156 ms 26172 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 69 ms 18872 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 42 ms 8628 KB Output is correct
21 Correct 174 ms 30536 KB Output is correct
22 Correct 152 ms 29652 KB Output is correct
23 Correct 164 ms 32072 KB Output is correct
24 Correct 167 ms 26308 KB Output is correct
25 Correct 61 ms 16588 KB Output is correct
26 Correct 59 ms 15676 KB Output is correct
27 Correct 165 ms 33052 KB Output is correct
28 Correct 169 ms 26208 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1364 KB Output is correct
37 Correct 153 ms 26052 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 9 ms 2388 KB Output is correct
41 Correct 160 ms 34080 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 4 ms 1748 KB Output is correct
45 Correct 71 ms 19004 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 40 ms 8636 KB Output is correct
50 Correct 156 ms 30540 KB Output is correct
51 Correct 156 ms 29980 KB Output is correct
52 Correct 161 ms 33100 KB Output is correct
53 Correct 58 ms 12348 KB Output is correct
54 Correct 68 ms 16700 KB Output is correct
55 Correct 158 ms 29896 KB Output is correct
56 Correct 162 ms 32072 KB Output is correct
57 Correct 63 ms 12344 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 4 ms 1748 KB Output is correct
61 Correct 73 ms 20616 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 0 ms 340 KB Output is correct
65 Correct 39 ms 8664 KB Output is correct
66 Correct 63 ms 18616 KB Output is correct
67 Correct 63 ms 16924 KB Output is correct
68 Correct 62 ms 18220 KB Output is correct
69 Correct 68 ms 14308 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2436 KB Output is correct
7 Correct 173 ms 34080 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 156 ms 26172 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 69 ms 18872 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 42 ms 8628 KB Output is correct
21 Correct 174 ms 30536 KB Output is correct
22 Correct 152 ms 29652 KB Output is correct
23 Correct 164 ms 32072 KB Output is correct
24 Correct 167 ms 26308 KB Output is correct
25 Correct 61 ms 16588 KB Output is correct
26 Correct 59 ms 15676 KB Output is correct
27 Correct 165 ms 33052 KB Output is correct
28 Correct 169 ms 26208 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1364 KB Output is correct
37 Correct 153 ms 26052 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 9 ms 2388 KB Output is correct
41 Correct 160 ms 34080 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 4 ms 1748 KB Output is correct
45 Correct 71 ms 19004 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 40 ms 8636 KB Output is correct
50 Correct 156 ms 30540 KB Output is correct
51 Correct 156 ms 29980 KB Output is correct
52 Correct 161 ms 33100 KB Output is correct
53 Correct 58 ms 12348 KB Output is correct
54 Correct 68 ms 16700 KB Output is correct
55 Correct 158 ms 29896 KB Output is correct
56 Correct 162 ms 32072 KB Output is correct
57 Correct 63 ms 12344 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 0 ms 340 KB Output is correct
61 Correct 40 ms 8656 KB Output is correct
62 Correct 156 ms 30532 KB Output is correct
63 Correct 158 ms 29644 KB Output is correct
64 Correct 160 ms 32088 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 42 ms 8652 KB Output is correct
67 Correct 160 ms 30520 KB Output is correct
68 Correct 177 ms 29988 KB Output is correct
69 Correct 164 ms 33048 KB Output is correct
70 Correct 0 ms 340 KB Output is correct
71 Correct 0 ms 340 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 40 ms 8628 KB Output is correct
74 Correct 166 ms 32428 KB Output is correct
75 Correct 159 ms 32428 KB Output is correct
76 Correct 155 ms 32088 KB Output is correct
77 Correct 154 ms 28228 KB Output is correct
78 Correct 0 ms 340 KB Output is correct
79 Correct 0 ms 340 KB Output is correct
80 Correct 4 ms 1748 KB Output is correct
81 Correct 73 ms 20616 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 0 ms 340 KB Output is correct
85 Correct 39 ms 8664 KB Output is correct
86 Correct 63 ms 18616 KB Output is correct
87 Correct 63 ms 16924 KB Output is correct
88 Correct 62 ms 18220 KB Output is correct
89 Correct 68 ms 14308 KB Output is correct
90 Correct 1 ms 340 KB Output is correct
91 Correct 1 ms 356 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 62 ms 14052 KB Output is correct
94 Correct 1 ms 340 KB Output is correct
95 Correct 0 ms 360 KB Output is correct
96 Correct 1 ms 340 KB Output is correct
97 Correct 21 ms 3796 KB Output is correct
98 Correct 59 ms 14120 KB Output is correct
99 Correct 60 ms 14256 KB Output is correct
100 Correct 60 ms 14124 KB Output is correct
101 Correct 58 ms 14144 KB Output is correct
102 Correct 59 ms 14124 KB Output is correct
103 Correct 58 ms 14128 KB Output is correct
104 Correct 60 ms 14120 KB Output is correct
105 Correct 62 ms 14136 KB Output is correct