Submission #1111960

#	Time	Username	Problem	Language	Result	Execution time	Memory
1111960		MisterReaper	Drawing (CEOI22_drawing)	C++17	100 / 100	194 ms	34380 KiB

Main

#include <bits/stdc++.h>

using i64 = long long;

#ifdef DEBUG 
    #include "../../debug.h"
#else
    #define debug(...) void(23)
#endif

constexpr int max_N = int(2E5) + 5;

int N;
int A[max_N], B[max_N], ans[max_N];
std::vector<int> adj[max_N];

int cur = 0;
std::vector<int> p;

void solve(int v) {
    ans[v] = p[cur++];
    for (auto u : adj[v]) {
        adj[u].erase(std::find(adj[u].begin(), adj[u].end(), v));
        solve(u);
    }
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    std::cin >> N;
    for (int i = 0; i < N - 1; ++i) {
        int u, v;
        std::cin >> u >> v;
        --u, --v;
        adj[u].emplace_back(v);
        adj[v].emplace_back(u);
    }
    for (int i = 0; i < N; ++i) {
        std::cin >> A[i] >> B[i];
        ++A[i], ++B[i];
    }

    p.assign(N, 0);
    std::iota(p.begin(), p.end(), 0);
    std::sort(p.begin(), p.end(), [&](auto lhs, auto rhs) {
        return std::pair{A[lhs], B[lhs]} < std::pair{A[rhs], B[rhs]};
    });

    solve(0);

    for (int i = 0; i < N; ++i) {
        std::cout << ans[i] + 1 << " \n"[i == N - 1];
    }

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 35 / 35
• Subtask 5: 25 / 25