oj.uz

Submission #1066711

# Submission time Handle Problem Language Result Execution time Memory
1066711 2024-08-20T05:25:02 Z LittleOrange Beech Tree (IOI23_beechtree) C++17
9 / 100
 2000 ms 85796 KB 
#include "beechtree.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
struct obj{
    ll i,d;
    set<ll> s;
    bool operator<(const obj &o){
        return d!=o.d?d<o.d:s.size()>o.s.size();
    }
    bool nxt(const obj &o){
        for(ll i : o.s){
            if (!s.count(i)){
                return false;
            }
        }
        return true;
    }
};
std::vector<int> beechtree(int N, int M, std::vector<int> P, std::vector<int> C)
{
    ll n = N;
    ll m = M;
    vector<vector<ll>> ch(n);
    for(ll i = 1;i<n;i++) ch[P[i]].push_back(i);
    vector<ll> h(n,0),d(n,0);
    {
        function<void(ll)> dfs;
        dfs = [&](ll i){
            for(ll j : ch[i]) {
                d[j] = d[i]+1;
                dfs(j);
                h[i] = max(h[i],h[j]+1);
            }
        };
        dfs(0);
    }
    vector<ll> bad(n,0);
    for(ll i = n-1;i>=0;i--){
        vector<ll> v;
        for(ll j : ch[i]){
            if (bad[j]) bad[i] = 1;
            v.push_back(C[j]);
            if(ch[i].size()<ch[j].size()) bad[i] = 1;
        }
        sort(v.begin(),v.end());
        if (unique(v.begin(),v.end())!=v.end()) bad[i] = 1;
    }
    vector<ll> ans(n,0);
    for(ll i = 0;i<n;i++){
        if (bad[i]) continue;
        if (h[i]<=1) {
            ans[i] = 1;
            continue;
        }
        vector<obj> cur;
        function<void(ll)> dfs;
        dfs = [&](ll i){
            if (ch[i].empty()) return;
            obj o = {i,d[i]};
            for(ll j : ch[i]){
                o.s.insert(C[j]);
            }
            cur.push_back(o);
            for(ll j : ch[i]){
                dfs(j);
            }
        };
        dfs(i);
        sort(cur.begin(),cur.end());
        ll res = 1;
        for(ll i = 0;i+1<cur.size();i++){
            if (!cur[i].nxt(cur[i+1])){
                res = 0;
                break;
            }
        }
        ans[i] = res;
    }
    return ans;
}

Compilation message

beechtree.cpp: In function 'std::vector<int> beechtree(int, int, std::vector<int>, std::vector<int>)':
beechtree.cpp:72:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<obj>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         for(ll i = 0;i+1<cur.size();i++){
      |                      ~~~^~~~~~~~~~~
beechtree.cpp:23:8: warning: unused variable 'm' [-Wunused-variable]
   23 |     ll m = M;
      |        ^

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
4 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 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 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 348 KB Output is correct
9 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
10 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 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Execution timed out 2037 ms 85796 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 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 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 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 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 43 ms 12476 KB Output is correct
16 Correct 42 ms 11868 KB Output is correct
17 Correct 25 ms 7256 KB Output is correct
18 Correct 44 ms 12372 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 Execution timed out 2037 ms 85796 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
4 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 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
6 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
4 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 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
6 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '0', found: '1'
4 Halted 0 ms 0 KB -