제출 #843315

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
843315	2023-09-03 22:26:35	SHZhang	Beech Tree (IOI23_beechtree)	C++17	5 / 100	58 ms	19912 KiB

beechtree

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#include "beechtree.h"
#include <vector>
#include <utility>
using namespace std;
int n, m;
vector<int> p, c;
vector<pair<int, int>> children[200005];
bool chain[200005];
int purecolor[200005];
int perms[15];
bool check(int i)
{
    if (chain[i]) {
        return purecolor[i] != -1;
    } else {
        return false;
    }
}
std::vector<int> beechtree(int N, int M, std::vector<int> P, std::vector<int> C)
{
    n = N; m = M; p = P; c = C;
    vector<int> ans;
    bool ischain = true;
    for (int i = 1; i < N; i++) {
        if (P[i] != i-1) ischain = false;
        children[P[i]].push_back(make_pair(i, C[i]));
 
 
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