oj.uz

Submission #1065630

# Submission time Handle Problem Language Result Execution time Memory
1065630 2024-08-19T10:11:41 Z Zicrus Beech Tree (IOI23_beechtree) C++17
9 / 100
 68 ms 55988 KB 
#include <bits/stdc++.h>
#include "beechtree.h"
using namespace std;
 
typedef long long ll;

ll n;
vector<int> c;
vector<int> res;
vector<vector<ll>> adj;
vector<pair<ll, ll>> szId;
vector<ll> dep;

ll dfsDep(ll cur) {
    ll d = 0;
    for (auto &e : adj[cur]) {
        d = max(d, dfsDep(e)+1);
    }
    return dep[cur] = d;
}

void dfsSzId(ll cur) {
    szId.push_back({adj[cur].size(), cur});
    for (auto &e : adj[cur]) {
        dfsSzId(e);
    }
}

void solve2(ll root) {
    szId.clear();
    dfsSzId(root);
    sort(szId.begin(), szId.end());

    unordered_set<ll> used;
    if (adj[root].size() != szId.back().first) res[root] = 0;
    for (auto &e : adj[root]) {
        if (used.count(c[e]))
            res[root] = 0;
        used.insert(c[e]);
    }
    for (int i = n-1; i >= 1; i--) {
        unordered_set<ll> nw;
        for (auto &e : adj[szId[i].second]) {
            if (!used.count(c[e]))
                res[root] = 0;
            if (nw.count(c[e]))
                res[szId[i].second] = res[root] = 0;
            nw.insert(c[e]);
        }
        used = nw;
    }
}

void dfsSol(ll cur) {
    if (dep[cur] <= 2) return solve2(cur);
    res[cur] = 0;
    for (auto &e : adj[cur]) {
        dfsSol(e);
    }
}
 
vector<int> beechtree(int n1, int m, vector<int> p, vector<int> c1) {
    n = n1; c = c1;
    res = vector<int>(n, 1);
    adj = vector<vector<ll>>(n);
    dep = vector<ll>(n);
    for (int i = 1; i < n; i++) {
        adj[p[i]].push_back(i);
    }
    dfsDep(0);
    dfsSol(0);
    return res;
}

#ifdef TEST
#include "grader.cpp"
#endif

Compilation message

beechtree.cpp: In function 'void solve2(ll)':
beechtree.cpp:35:26: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   35 |     if (adj[root].size() != szId.back().first) res[root] = 0;
      |         ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Runtime error 0 ms 348 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #1
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
4 Halted 0 ms 0 KB -

Subtask #2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
4 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 48 ms 10128 KB Output is correct
16 Correct 42 ms 9672 KB Output is correct
17 Correct 51 ms 9916 KB Output is correct
18 Correct 45 ms 9944 KB Output is correct

Subtask #4
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Runtime error 68 ms 55988 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Runtime error 0 ms 348 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #6
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Runtime error 1 ms 348 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Runtime error 0 ms 348 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #8
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Runtime error 1 ms 348 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Runtime error 0 ms 348 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -