제출 #718319

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
718319		bebra	Split the Attractions (IOI19_split)	C++17	컴파일 에러	0 ms	0 KiB

split

// #include "split.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define dbg(x) cerr << #x << ": " << x << endl;


const int MAX_N = 1e5 + 5;
vector<int> g[MAX_N];
int color[MAX_N];
bool block[MAX_N];
int sz[MAX_N];

int n;
int order_color[3];
int order[3];

bool found = false;

void dfs_color(int v, int p, int c, int& cnt) {
    if (cnt == 0) {
        return;
    }
    --cnt;
    color[v] = c;
    for (auto u : g[v]) {
        if (u == p || block[u]) continue;
        dfs_color(u, v, c, cnt);
    }
}

void dfs_calc(int v = 0, int p = -1) {
    sz[v] = 1;
    for (auto u : g[v]) {
        if (u == p) continue;

        dfs_calc(u, v);
        sz[v] += sz[u];

        if (found) return;
    }

    if (sz[v] >= order[0] && n - sz[v] >= order[1]) {
        block[v] = true;
        found = true;
        int curr_cnt1 = order[0];
        int curr_cnt2 = order[1];
        dfs_color(v, -1, order_color[0], curr_cnt1);
        dfs_color(0, -1, order_color[1], curr_cnt2);
        return;
    }

    if (sz[v] >= order[1] && n - sz[v] >= order[0]) {
        block[v] = true;
        found = true;
        int curr_cnt1 = order[0];
        int curr_cnt2 = order[1];
        dfs_color(v, -1, order_color[1], curr_cnt2);
        dfs_color(0, -1, order_color[0], curr_cnt1);
        return;
    }
}


vector<int> find_split(int _n, int a, int b, int c, vector<int> p, vector<int> q) {
    n = _n;
    int m = p.size();

    for (int i = 0; i < m; ++i) {
        int u = p[i];
        int v = q[i];
        g[u].push_back(v);
        g[v].push_back(u);
    }

    order[0] = a;
    order[1] = b;
    order[2] = c;

    order_color[0] = 1;
    order_color[1] = 2;
    order_color[2] = 3;

    sort(order_color, order_color + 3, [&](int lhs, int rhs) {
        return order[lhs - 1] < order[rhs - 1];
    });

    sort(order, order + 3);

    fill_n(color, n, order_color[2]);
    dfs_calc();

    vector<int> res(n);
    for (int i = 0; i < n; ++i) {
        res[i] = color[i];
    }

	return res;
}


int main() {

    int m;
    cin >> n >> m;

    int a, b, c;
    cin >> a >> b >> c;

    vector<int> p(m), q(m);
    for (int i = 0; i < m; ++i) {
        cin >> p[i] >> q[i];
    }

    for (auto x : find_split(n, a, b, c, p, q)) {
        cout << x << ' ';
    }
    cout << '\n';

}

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccbGujfL.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccg5GbzJ.o:split.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status