oj.uz

Submission #835954

# Submission time Handle Problem Language Result Execution time Memory
835954 2023-08-24T00:39:39 Z maomao90 Connecting Supertrees (IOI20_supertrees) C++17
40 / 100
 182 ms 26112 KB 
// I can do all things through Christ who strengthens me
// Philippians 4:13

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

#define REP(i, j, k) for (int i = j; i < (k); i++)
#define RREP(i, j, k) for (int i = j; i >= (k); i--)

template <class T>
inline bool mnto(T &a, const T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T &a, const T b) {return a < b ? a = b, 1 : 0;}

typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define ALL(x) x.begin(), x.end()
#define SZ(x) (int) x.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef tuple<int, int, int> iii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005;
const int MAXN = 1005;

int n;
vector<vi> g;
vector<vi> ans;
bool vis[MAXN];

bool incyc[MAXN];
bool solve(vi comp) {
    if (SZ(comp) == 1) {
        return 1;
    }
    vi cyc, line;
    for (int i : comp) {
        bool all2 = 1;
        for (int j : comp) {
            if (i == j) {
                continue;
            }
            if (g[i][j] != 2) {
                all2 = 0;
                break;
            }
        }
        if (all2) {
            cyc.pb(i);
            incyc[i] = 1;
        } else {
            line.pb(i);
        }
    }
    for (int i : line) {
        for (int j : comp) {
            if (j == i) {
                continue;
            }
            if (incyc[j]) {
                if (g[i][j] != 2) {
                    assert(0);
                    return 0;
                }
            } else {
                if (g[i][j] != 1) {
                    assert(0);
                    return 0;
                }
            }
        }
    }
    if (SZ(cyc) == 1) {
        return 0;
    }
    if (line.empty()) {
        if (SZ(cyc) == 2) {
            return 0;
        }
        REP (i, 0, SZ(cyc)) {
            ans[cyc[i]][cyc[(i + 1) % SZ(cyc)]] = 1;
            ans[cyc[(i + 1) % SZ(cyc)]][cyc[i]] = 1;
        }
        return 1;
    }
    REP (i, 0, SZ(line) - 1) {
        ans[line[i]][line[i + 1]] = 1;
        ans[line[i + 1]][line[i]] = 1;
    }
    if (!cyc.empty()) {
        REP (i, 0, SZ(cyc) - 1) {
            ans[cyc[i]][cyc[i + 1]] = 1;
            ans[cyc[i + 1]][cyc[i]] = 1;
        }
        ans[line[0]][cyc[0]] = 1;
        ans[cyc[0]][line[0]] = 1;
        ans[line[0]][cyc.back()] = 1;
        ans[cyc.back()][line[0]] = 1;
    }
    return 1;
}

int construct(vector<vi> p) {
    n = SZ(p);
    ans = vector<vi>(n, vi(n, 0));
    g = p;
    REP (i, 0, n) {
        REP (j, 0, n) {
            if (g[i][j] == 3) {
                return 0;
            }
        }
    }
    REP (i, 0, n) {
        if (vis[i]) {
            continue;
        }
        vi comp;
        REP (j, 0, n) {
            if (g[i][j]) {
                comp.pb(j);
            }
        }
        for (int j : comp) {
            vis[j] = 1;
            REP (k, 0, n) {
                if ((g[j][k] > 0) != (g[i][k] > 0)) {
                    return 0;
                }
            }
        }
        if (!solve(comp)) {
            return 0;
        }
    }
    build(ans);
    return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 6 ms 1364 KB Output is correct
7 Correct 147 ms 25960 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 6 ms 1364 KB Output is correct
7 Correct 147 ms 25960 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 224 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 164 ms 25932 KB Output is correct
14 Correct 1 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 70 ms 16004 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 37 ms 6736 KB Output is correct
21 Correct 149 ms 26016 KB Output is correct
22 Correct 146 ms 25932 KB Output is correct
23 Correct 154 ms 25992 KB Output is correct
24 Correct 146 ms 25988 KB Output is correct
25 Correct 63 ms 16076 KB Output is correct
26 Correct 60 ms 16004 KB Output is correct
27 Correct 153 ms 25900 KB Output is correct
28 Correct 147 ms 25976 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 6 ms 1364 KB Output is correct
9 Correct 149 ms 26112 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 150 ms 25996 KB Output is correct
14 Correct 1 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 65 ms 16076 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 37 ms 6732 KB Output is correct
22 Correct 153 ms 25940 KB Output is correct
23 Correct 149 ms 25932 KB Output is correct
24 Correct 156 ms 25916 KB Output is correct
25 Correct 63 ms 16004 KB Output is correct
26 Correct 61 ms 16020 KB Output is correct
27 Correct 148 ms 25936 KB Output is correct
28 Correct 157 ms 25892 KB Output is correct
29 Correct 62 ms 16076 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 37 ms 6740 KB Output is correct
5 Correct 150 ms 25932 KB Output is correct
6 Correct 150 ms 25992 KB Output is correct
7 Correct 151 ms 25996 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 37 ms 6740 KB Output is correct
10 Correct 150 ms 25980 KB Output is correct
11 Correct 151 ms 25920 KB Output is correct
12 Correct 182 ms 25992 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Runtime error 18 ms 8532 KB Execution killed with signal 6
17 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 6 ms 1364 KB Output is correct
7 Correct 147 ms 25960 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 224 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 164 ms 25932 KB Output is correct
14 Correct 1 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 70 ms 16004 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 37 ms 6736 KB Output is correct
21 Correct 149 ms 26016 KB Output is correct
22 Correct 146 ms 25932 KB Output is correct
23 Correct 154 ms 25992 KB Output is correct
24 Correct 146 ms 25988 KB Output is correct
25 Correct 63 ms 16076 KB Output is correct
26 Correct 60 ms 16004 KB Output is correct
27 Correct 153 ms 25900 KB Output is correct
28 Correct 147 ms 25976 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1364 KB Output is correct
37 Correct 149 ms 26112 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 150 ms 25996 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 65 ms 16076 KB Output is correct
46 Correct 0 ms 336 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 37 ms 6732 KB Output is correct
50 Correct 153 ms 25940 KB Output is correct
51 Correct 149 ms 25932 KB Output is correct
52 Correct 156 ms 25916 KB Output is correct
53 Correct 63 ms 16004 KB Output is correct
54 Correct 61 ms 16020 KB Output is correct
55 Correct 148 ms 25936 KB Output is correct
56 Correct 157 ms 25892 KB Output is correct
57 Correct 62 ms 16076 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 64 ms 16016 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Runtime error 19 ms 8532 KB Execution killed with signal 6
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 6 ms 1364 KB Output is correct
7 Correct 147 ms 25960 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 224 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 164 ms 25932 KB Output is correct
14 Correct 1 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 70 ms 16004 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 37 ms 6736 KB Output is correct
21 Correct 149 ms 26016 KB Output is correct
22 Correct 146 ms 25932 KB Output is correct
23 Correct 154 ms 25992 KB Output is correct
24 Correct 146 ms 25988 KB Output is correct
25 Correct 63 ms 16076 KB Output is correct
26 Correct 60 ms 16004 KB Output is correct
27 Correct 153 ms 25900 KB Output is correct
28 Correct 147 ms 25976 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1364 KB Output is correct
37 Correct 149 ms 26112 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 150 ms 25996 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 65 ms 16076 KB Output is correct
46 Correct 0 ms 336 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 37 ms 6732 KB Output is correct
50 Correct 153 ms 25940 KB Output is correct
51 Correct 149 ms 25932 KB Output is correct
52 Correct 156 ms 25916 KB Output is correct
53 Correct 63 ms 16004 KB Output is correct
54 Correct 61 ms 16020 KB Output is correct
55 Correct 148 ms 25936 KB Output is correct
56 Correct 157 ms 25892 KB Output is correct
57 Correct 62 ms 16076 KB Output is correct
58 Correct 0 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 37 ms 6740 KB Output is correct
62 Correct 150 ms 25932 KB Output is correct
63 Correct 150 ms 25992 KB Output is correct
64 Correct 151 ms 25996 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 37 ms 6740 KB Output is correct
67 Correct 150 ms 25980 KB Output is correct
68 Correct 151 ms 25920 KB Output is correct
69 Correct 182 ms 25992 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Runtime error 18 ms 8532 KB Execution killed with signal 6
74 Halted 0 ms 0 KB -