Submission #745169

#	Time	Username	Problem	Language	Result	Execution time	Memory
745169		Desh03	Traffic (IOI10_traffic)	C++17	Compilation error	0 ms	0 KiB

traffic

#include <bits/stdc++.h>
using namespace std;

vector<vector<int>> g;
vector<int> sz, a;
int ans = INT_MAX;

void dfs(int u, int p) {
    sz[u] = a[u];
    for (int v : g[u])
        if (v ^ p)
            dfs(v, u), sz[u] += sz[v];
}

void solve(int u, int p) {
    int x = sz[0] - sz[u];
    for (int v : g[u])
        if (v ^ p)
            solve(v, u), x = max(x, sz[v]);
    ans = min(ans, x);
}

int LocateCentre(int n, vector<int> p, vector<int> s, vector<int> d) {
    g.resize(n);
    a = p;
    for (int i = 0; i < n - 1; i++) {
        g[s[i]].push_back(d[i]);
        g[d[i]].push_back(s[i]);
    }
    dfs(0, 0);
    solve(0, 0);
    return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cci04UWb.o: in function `main':
grader.cpp:(.text.startup+0xe1): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status