oj.uz

Submission #301598

# Submission time Handle Problem Language Result Execution time Memory
301598 2020-09-18T05:12:45 Z Dilshod_Imomov Connecting Supertrees (IOI20_supertrees) C++17
40 / 100
 259 ms 22392 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 1e3 + 7;
int nn, comp, used[N], cc[N], cmp[N], ok, first[N], nb[N][2];
set < int > sz[N];

int construct(std::vector<std::vector<int>> p) {
	nn = p.size();
	std::vector<std::vector<int>> answer;
	vector < pair < int, int > > vc;
	for (int i = 0; i < nn; i++) {
		std::vector<int> row;
		row.resize(nn);
		answer.push_back(row);
	}
	int sub1 = 1, sub2 = 0;
	for ( int i = 0; i < nn; i++ ) {
        for ( int j = 0; j < nn ;j++ ) {
            if ( p[i][j] == 2 ) {
                sub1 = 0;
            }
        }
	}
	if ( !sub1 ) {
        for ( int i = 0; i < nn; i++ ) {
            for ( int j = 0; j < nn; j++ ) {
                if ( p[i][j] == 1 && i != j ) {
                    p[i][j] = 2;
                    p[j][i] = 2;
                    vc.push_back( { i, j } );
                    vc.push_back( { j, i } );
                    sub2 = 1;
                }
            }
        }
	}
	for ( int i = 0; i < nn; i++ ) {
        if ( !cc[i] ) {
            cc[i] = ++comp;
            first[comp] = i;
            sz[cc[i]].insert(i);
        }
        cmp[ cc[i] ] = i;
        for ( int j = 0; j < nn; j++ ) {
            if ( p[i][j] && i != j ) {
                if ( cc[j] && cc[j] != cc[i] ) {
                    return 0;
                }
                if(  cc[j] ) {
                    continue;
                }
                cc[j] = cc[i];
                sz[cc[i]].insert(j);
                nb[ cmp[ cc[i] ] ][1] = j;
                nb[ j ][0] = cmp[ cc[i] ];
                answer[ cmp[ cc[i] ] ][j] = 1;
                answer[ j ][ cmp[ cc[i] ] ] = 1;
                cmp[ cc[i] ] = j;
            }
        }
	}
	if ( !sub1 ) {
        for ( int i = 1; i <= comp; i++ ) {
            if ( !sub1 && sub2 ) {
                if ( sz[i].size() == 2 ) {
                    auto it = sz[i].begin();
                    used[*it] = 1;
                    it++;
                    used[*it] = 1;
                    continue;
                }
            }
            if ( cmp[ i ] != first[i] ) {
                answer[cmp[i]][first[i]] = 1;
                answer[ first[i] ][cmp[i]] = 1;
                nb[ cmp[i] ][1] = first[i];
                nb[ first[i] ][0] = cmp[i];
            }
            if ( sz[i].size() == 2 ) {
                return 0;
            }
        }
	}
	if ( !sub1 && sub2 ) {
        for ( auto pr: vc ) {
            int u = pr.first, v = pr.second;
            if ( used[u] || used[v] ) {
                continue;
            }
            //cout << u << ' ' << v << endl;
            //cout << nb[u][0] << ' ' << u << ' ' << nb[u][1] << '\n';
            if ( nb[u][1] == v ) {
                //cout << 1 << endl;
                answer[v][ nb[v][1] ] = 0;
                answer[ nb[v][1] ][v] = 0;
                answer[ u ][ nb[v][1] ] = 1;
                answer[ nb[v][1] ][ u ] = 1;
                used[v] = 1;
                nb[u][1] = nb[v][1];
                nb[ nb[v][1] ][0] = u;
            }
            else {
                //cout << 2 << endl;
                answer[v][ nb[v][0] ] = 0;
                answer[ nb[v][0] ][v] = 0;
                answer[ u ][ nb[v][0] ] = 1;
                answer[ nb[v][0] ][ u ] = 1;
                used[v] = 1;
                nb[u][0] = nb[v][0];
                nb[ nb[v][0] ][1] = u;
            }
            //cout << nb[u][0] << ' ' << u << ' ' << nb[u][1] << endl;
        }
        for ( int i = 0; i < nn; i++ ) {
            answer[i][i] = 0;
        }
        return 1;
        build(answer);
	}
    for ( int i = 0; i < nn; i++ ) {
        for ( int j = 0; j < nn; j++ ) {
            if ( cc[i] == cc[j] ) {
                if ( !p[i][j] || !p[j][i] ) {
                    return 0;
                }
            }
        }
    }
	build(answer);
	return 1;
}
/*
7
1 2 2 2 1 0 0
2 1 2 2 2 0 0
2 2 1 1 2 0 0
2 2 1 1 2 0 0
1 2 2 2 1 0 0
0 0 0 0 0 1 1
0 0 0 0 0 1 1
*/

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 11 ms 1280 KB Output is correct
7 Correct 253 ms 22264 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 11 ms 1280 KB Output is correct
7 Correct 253 ms 22264 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 234 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 8 ms 896 KB Output is correct
17 Correct 111 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 5880 KB Output is correct
21 Correct 242 ms 22264 KB Output is correct
22 Correct 242 ms 22392 KB Output is correct
23 Correct 248 ms 22136 KB Output is correct
24 Correct 235 ms 22136 KB Output is correct
25 Correct 99 ms 12408 KB Output is correct
26 Correct 98 ms 12408 KB Output is correct
27 Correct 254 ms 22136 KB Output is correct
28 Correct 254 ms 22136 KB Output is correct

Subtask #3
19.0 / 19.0

# 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 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 11 ms 1280 KB Output is correct
9 Correct 239 ms 22152 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 255 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 6 ms 896 KB Output is correct
17 Correct 113 ms 12280 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 61 ms 5880 KB Output is correct
22 Correct 253 ms 22344 KB Output is correct
23 Correct 240 ms 22184 KB Output is correct
24 Correct 258 ms 22280 KB Output is correct
25 Correct 98 ms 12332 KB Output is correct
26 Correct 99 ms 12280 KB Output is correct
27 Correct 240 ms 22264 KB Output is correct
28 Correct 254 ms 22164 KB Output is correct
29 Correct 103 ms 12408 KB Output is correct

Subtask #4
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 62 ms 5880 KB Output is correct
5 Correct 246 ms 22152 KB Output is correct
6 Correct 242 ms 22264 KB Output is correct
7 Correct 259 ms 22136 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 61 ms 5940 KB Output is correct
10 Correct 255 ms 22228 KB Output is correct
11 Correct 247 ms 22136 KB Output is correct
12 Correct 258 ms 22284 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Incorrect 1 ms 384 KB WA in grader: construct returned 1 without calling build
15 Halted 0 ms 0 KB -

Subtask #5
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 11 ms 1280 KB Output is correct
7 Correct 253 ms 22264 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 234 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 8 ms 896 KB Output is correct
17 Correct 111 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 5880 KB Output is correct
21 Correct 242 ms 22264 KB Output is correct
22 Correct 242 ms 22392 KB Output is correct
23 Correct 248 ms 22136 KB Output is correct
24 Correct 235 ms 22136 KB Output is correct
25 Correct 99 ms 12408 KB Output is correct
26 Correct 98 ms 12408 KB Output is correct
27 Correct 254 ms 22136 KB Output is correct
28 Correct 254 ms 22136 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 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 384 KB Output is correct
36 Correct 11 ms 1280 KB Output is correct
37 Correct 239 ms 22152 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 255 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 6 ms 896 KB Output is correct
45 Correct 113 ms 12280 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 61 ms 5880 KB Output is correct
50 Correct 253 ms 22344 KB Output is correct
51 Correct 240 ms 22184 KB Output is correct
52 Correct 258 ms 22280 KB Output is correct
53 Correct 98 ms 12332 KB Output is correct
54 Correct 99 ms 12280 KB Output is correct
55 Correct 240 ms 22264 KB Output is correct
56 Correct 254 ms 22164 KB Output is correct
57 Correct 103 ms 12408 KB Output is correct
58 Correct 1 ms 416 KB Output is correct
59 Incorrect 1 ms 384 KB WA in grader: construct returned 1 without calling build
60 Halted 0 ms 0 KB -

Subtask #6
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 11 ms 1280 KB Output is correct
7 Correct 253 ms 22264 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 234 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 8 ms 896 KB Output is correct
17 Correct 111 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 5880 KB Output is correct
21 Correct 242 ms 22264 KB Output is correct
22 Correct 242 ms 22392 KB Output is correct
23 Correct 248 ms 22136 KB Output is correct
24 Correct 235 ms 22136 KB Output is correct
25 Correct 99 ms 12408 KB Output is correct
26 Correct 98 ms 12408 KB Output is correct
27 Correct 254 ms 22136 KB Output is correct
28 Correct 254 ms 22136 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 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 384 KB Output is correct
36 Correct 11 ms 1280 KB Output is correct
37 Correct 239 ms 22152 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 255 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 6 ms 896 KB Output is correct
45 Correct 113 ms 12280 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 61 ms 5880 KB Output is correct
50 Correct 253 ms 22344 KB Output is correct
51 Correct 240 ms 22184 KB Output is correct
52 Correct 258 ms 22280 KB Output is correct
53 Correct 98 ms 12332 KB Output is correct
54 Correct 99 ms 12280 KB Output is correct
55 Correct 240 ms 22264 KB Output is correct
56 Correct 254 ms 22164 KB Output is correct
57 Correct 103 ms 12408 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 62 ms 5880 KB Output is correct
62 Correct 246 ms 22152 KB Output is correct
63 Correct 242 ms 22264 KB Output is correct
64 Correct 259 ms 22136 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 61 ms 5940 KB Output is correct
67 Correct 255 ms 22228 KB Output is correct
68 Correct 247 ms 22136 KB Output is correct
69 Correct 258 ms 22284 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Incorrect 1 ms 384 KB WA in grader: construct returned 1 without calling build
72 Halted 0 ms 0 KB -