oj.uz

Submission #382902

# Submission time Handle Problem Language Result Execution time Memory
382902 2021-03-28T11:44:23 Z danielcm585 Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 287 ms 22380 KB 
#include "supertrees.h"

#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pb push_back

typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ii,int> iii;

const int N = 1e3;
int dsu[3][N+2];

int find(int idx, int x) {
    if (dsu[idx][x] == x)
        return x;
    return dsu[idx][x] = find(idx,dsu[idx][x]);
}

void merge(int idx, int a, int b) {
    int ra = find(idx,a);
    int rb = find(idx,b);
    dsu[idx][ra] = rb;
}

bool connect(int idx, int a, int b) {
    return (find(idx,a) == find(idx,b));
}

int construct(vector<vector<int>> p) {
	int n = p.size();
    for (int i = 0; i < n; i++) {
        for (int j = 0; j <= 2; j++) {
            dsu[j][i] = 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] != 0)
                merge(0,i,j);
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (p[i][j] == 0 && connect(0,i,j))
                return 0;
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (p[i][j] == 1)
                merge(1,i,j);
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (p[i][j] == 2 && connect(1,i,j))
                return 0;
        }
    }
	vector<vector<int>> ans(n,vector<int>(n,0));
    for (int i = 0; i < n; i++) {
        int r = find(1,i);
        if (r != i) {
            ans[i][r] = 1;
            ans[r][i] = 1;
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            int u = find(1,i);
            int v = find(1,j);
            if (p[u][v] == 2)
                merge(2,u,v);
        }
    }
    vector<vector<int>> ls(n);
    for (int i = 0; i < n; i++) {
        ls[find(2,i)].pb(i);
    }
    for (int i = 0; i < n; i++) {
        int sz = ls[i].size();
        if (sz <= 1)
            continue;
        if (sz == 2)
            return 0;
        for (int j = 0; j < sz; j++) {
            int u = ls[i][(j+1)%sz];
            int v = ls[i][j];
            ans[u][v] = 1;
            ans[v][u] = 1;
        }
    }
    // Subsoal 3
    // vector<vector<int>> ls(n);
    // for (int i = 0; i < n; i++) {
    //     ls[find(i)].pb(i);
    // }
    // for (int i = 0; i < n; i++) {
    //     int sz = ls[i].size();
    //     if (sz <= 1)
    //         continue;
    //     if (sz == 2)
    //         return 0;
    //     for (int j = 0; j < sz; j++) {
    //         int u = ls[i][(j+1)%sz];
    //         int v = ls[i][j];
    //         ans[u][v] = 1;
    //         ans[v][u] = 1;
    //     }
    // }
    // Subsoal 1
    // for (int i = 1; i < n; i++) {
    //     ans[i-1][i] = 1;
    //     ans[i][i-1] = 1;
    // }
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22380 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22380 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 259 ms 22124 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 620 KB Output is correct
17 Correct 107 ms 8172 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 68 ms 5868 KB Output is correct
21 Correct 271 ms 22252 KB Output is correct
22 Correct 266 ms 22124 KB Output is correct
23 Correct 281 ms 22252 KB Output is correct
24 Correct 262 ms 22252 KB Output is correct
25 Correct 103 ms 8172 KB Output is correct
26 Correct 99 ms 8172 KB Output is correct
27 Correct 282 ms 22252 KB Output is correct
28 Correct 260 ms 22124 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 11 ms 1260 KB Output is correct
9 Correct 255 ms 22124 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 12 ms 1260 KB Output is correct
13 Correct 258 ms 22124 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 620 KB Output is correct
17 Correct 108 ms 8172 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 66 ms 5868 KB Output is correct
22 Correct 273 ms 22244 KB Output is correct
23 Correct 259 ms 22124 KB Output is correct
24 Correct 287 ms 22252 KB Output is correct
25 Correct 114 ms 12268 KB Output is correct
26 Correct 102 ms 8172 KB Output is correct
27 Correct 260 ms 22124 KB Output is correct
28 Correct 284 ms 22124 KB Output is correct
29 Correct 112 ms 12268 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 67 ms 5868 KB Output is correct
5 Correct 267 ms 22124 KB Output is correct
6 Correct 264 ms 22124 KB Output is correct
7 Correct 284 ms 22252 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 66 ms 5868 KB Output is correct
10 Correct 263 ms 22124 KB Output is correct
11 Correct 259 ms 22252 KB Output is correct
12 Correct 280 ms 22124 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 65 ms 5868 KB Output is correct
17 Correct 268 ms 22124 KB Output is correct
18 Correct 271 ms 22124 KB Output is correct
19 Correct 268 ms 22244 KB Output is correct
20 Correct 259 ms 22124 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22380 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 259 ms 22124 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 620 KB Output is correct
17 Correct 107 ms 8172 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 68 ms 5868 KB Output is correct
21 Correct 271 ms 22252 KB Output is correct
22 Correct 266 ms 22124 KB Output is correct
23 Correct 281 ms 22252 KB Output is correct
24 Correct 262 ms 22252 KB Output is correct
25 Correct 103 ms 8172 KB Output is correct
26 Correct 99 ms 8172 KB Output is correct
27 Correct 282 ms 22252 KB Output is correct
28 Correct 260 ms 22124 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 255 ms 22124 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 12 ms 1260 KB Output is correct
41 Correct 258 ms 22124 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 5 ms 620 KB Output is correct
45 Correct 108 ms 8172 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 66 ms 5868 KB Output is correct
50 Correct 273 ms 22244 KB Output is correct
51 Correct 259 ms 22124 KB Output is correct
52 Correct 287 ms 22252 KB Output is correct
53 Correct 114 ms 12268 KB Output is correct
54 Correct 102 ms 8172 KB Output is correct
55 Correct 260 ms 22124 KB Output is correct
56 Correct 284 ms 22124 KB Output is correct
57 Correct 112 ms 12268 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 5 ms 620 KB Output is correct
61 Correct 107 ms 8172 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 68 ms 5868 KB Output is correct
66 Correct 103 ms 8172 KB Output is correct
67 Correct 101 ms 8172 KB Output is correct
68 Correct 100 ms 8172 KB Output is correct
69 Correct 111 ms 12168 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22380 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 259 ms 22124 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 620 KB Output is correct
17 Correct 107 ms 8172 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 68 ms 5868 KB Output is correct
21 Correct 271 ms 22252 KB Output is correct
22 Correct 266 ms 22124 KB Output is correct
23 Correct 281 ms 22252 KB Output is correct
24 Correct 262 ms 22252 KB Output is correct
25 Correct 103 ms 8172 KB Output is correct
26 Correct 99 ms 8172 KB Output is correct
27 Correct 282 ms 22252 KB Output is correct
28 Correct 260 ms 22124 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 255 ms 22124 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 12 ms 1260 KB Output is correct
41 Correct 258 ms 22124 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 5 ms 620 KB Output is correct
45 Correct 108 ms 8172 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 66 ms 5868 KB Output is correct
50 Correct 273 ms 22244 KB Output is correct
51 Correct 259 ms 22124 KB Output is correct
52 Correct 287 ms 22252 KB Output is correct
53 Correct 114 ms 12268 KB Output is correct
54 Correct 102 ms 8172 KB Output is correct
55 Correct 260 ms 22124 KB Output is correct
56 Correct 284 ms 22124 KB Output is correct
57 Correct 112 ms 12268 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 67 ms 5868 KB Output is correct
62 Correct 267 ms 22124 KB Output is correct
63 Correct 264 ms 22124 KB Output is correct
64 Correct 284 ms 22252 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 66 ms 5868 KB Output is correct
67 Correct 263 ms 22124 KB Output is correct
68 Correct 259 ms 22252 KB Output is correct
69 Correct 280 ms 22124 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 1 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 65 ms 5868 KB Output is correct
74 Correct 268 ms 22124 KB Output is correct
75 Correct 271 ms 22124 KB Output is correct
76 Correct 268 ms 22244 KB Output is correct
77 Correct 259 ms 22124 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 1 ms 364 KB Output is correct
80 Correct 5 ms 620 KB Output is correct
81 Correct 107 ms 8172 KB Output is correct
82 Correct 1 ms 364 KB Output is correct
83 Correct 1 ms 364 KB Output is correct
84 Correct 1 ms 364 KB Output is correct
85 Correct 68 ms 5868 KB Output is correct
86 Correct 103 ms 8172 KB Output is correct
87 Correct 101 ms 8172 KB Output is correct
88 Correct 100 ms 8172 KB Output is correct
89 Correct 111 ms 12168 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 5 ms 620 KB Output is correct
93 Correct 100 ms 8172 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 364 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 25 ms 2284 KB Output is correct
98 Correct 102 ms 8172 KB Output is correct
99 Correct 100 ms 8172 KB Output is correct
100 Correct 99 ms 8172 KB Output is correct
101 Correct 99 ms 8172 KB Output is correct
102 Correct 98 ms 8164 KB Output is correct
103 Correct 93 ms 8172 KB Output is correct
104 Correct 92 ms 8164 KB Output is correct
105 Correct 106 ms 8172 KB Output is correct