제출 #314849

#제출 시각아이디문제언어결과실행 시간메모리
314849LethalPuppyTraffic (IOI10_traffic)C++17
컴파일 에러
0 ms0 KiB
#include "traffic.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 1e6+5;
vector<int> neighbours[N];
int fans[N], total = 0, res = 0, traffic[N], posans[N], nums = 2e9+1;

void dfs(int u, int v) {
    for (auto &x: neighbours[u]) {
        if (x == v)
            continue;
        dfs(x, u);
        traffic[u] += traffic[x];
        posans[u] = max(posans[u], traffic[x]);
    }
    posans[u] = max(posans[u], total - traffic[u] - fans[u]);
    traffic[u] += fans[u];
}
int LocateCenter(int n, int p[], int s[], int d[]) {
    for (int i = 0; i < n - 1; ++i) {
        neighbours[s[i]].push_back(d[i]), neighbours[d[i]].push_back(s[i]);
        fans[i] = p[i], total += p[i];
    }
    fans[n - 1] = p[n - 1], total += p[n - 1];
    dfs(0, -1);
    for (int i = 0; i < n; ++i) {
        if (nums > posans[i]) {
            nums = posans[i];
            res = i;
        }
    }
    return res;
}

컴파일 시 표준 에러 (stderr) 메시지

/tmp/ccso4pJN.o: In function `main':
grader.cpp:(.text.startup+0xad): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status