Submission #1046569

#	Time	Username	Problem	Language	Result	Execution time	Memory
1046569		0npata	Beech Tree (IOI23_beechtree)	C++17	Compilation error	0 ms	0 KiB

beechtree

#include "beechtree.h"
#include<bits/stdc++.h>
using namespace std;
 
int n, m;
vector<int> p, c;
vector<vector<int>> g;
 
int good(int r){
    vector<int> ch;
    queue<int> q; q.push(r);
    while(!q.empty()){
        int n = q.front(); q.pop();
        ch.push_back(node);
        for (int i : g[node]) q.push(i);
    }
 
    if (ch.size() == 1) return 1;
 
    bool jupi = false;
    do {
        vector<int> count(m, 0);
        vector<int> is(ch.size(), -1);
        is[0] = r;
        bool good = true;
 
        for (int i = 0; i < ch.size() && good; i++){
            if (ch[i] == r) continue;
            if (count[c[ch[i]]] >= is.size() || p[ch[i]] != is[count[c[ch[i]]]]) good = false;
            count[c[ch[i]]]++;
            if (i+1 < is.size()) is[i+1] = ch[i];
        }
 
        if (good){
            jupi = true;
        }
 
    } while(next_permutation(ch.begin(), ch.end()));
 
    if (jupi) return 1;
    return 0;
}
 
std::vector<int> beechtree(int N, int M, std::vector<int> P, std::vector<int> C)
{
    n = N;
    m = M;
    p = P;
    c = C;
    g.resize(n);
    for (int i = 1; i < n; i++){
        if (p[i] < g.size()) {
            g[p[i]].push_back(i);
        }
    }
 
    vector<int> res(n);
    for (int i = 0; i < n; i++){
        res[i] = good(i);
    }
    return res;
}

Compilation message (stderr)

beechtree.cpp: In function 'int good(int)':
beechtree.cpp:14:22: error: 'node' was not declared in this scope
   14 |         ch.push_back(node);
      |                      ^~~~
beechtree.cpp:13:13: warning: unused variable 'n' [-Wunused-variable]
   13 |         int n = q.front(); q.pop();
      |             ^
beechtree.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for (int i = 0; i < ch.size() && good; i++){
      |                         ~~^~~~~~~~~~~
beechtree.cpp:29:33: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |             if (count[c[ch[i]]] >= is.size() || p[ch[i]] != is[count[c[ch[i]]]]) good = false;
beechtree.cpp:31:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             if (i+1 < is.size()) is[i+1] = ch[i];
      |                 ~~~~^~~~~~~~~~~
beechtree.cpp: In function 'std::vector<int> beechtree(int, int, std::vector<int>, std::vector<int>)':
beechtree.cpp:52:18: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |         if (p[i] < g.size()) {