Submission #883305

#	Time	Username	Problem	Language	Result	Execution time	Memory
883305		vjudge1	Factories (JOI14_factories)	C++17	Compilation error	0 ms	0 KiB

factories

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

typedef long long ll;
const ll INF = 1'000'000'000'000'000'000;

const int N = 5000;

int n, q;
ll dis[N + 10];
vector<pair<int, ll>> adj[N + 10];
vector<int> vec1, vec2;

void readInput() {
    cin >> n >> q;
    for (int i = 1; i < n; i++) {
        int u, v;
        ll w;
        cin >> u >> v >> w;
        adj[u].push_back({v, w});
        adj[v].push_back({u, w});
    }
}

void dij() {
    fill(dis + 1, dis + n + 1, INF);
    set<pair<ll, int>> st;
    for (auto t: vec1) {
        dis[t] = 0;
        st.insert({0, t});
    }
    while (!st.empty()) {
        int u = st.begin() -> second;
        st.erase(st.begin());
        for (auto [v, w]: adj[u])
            if (dis[u] + w < dis[v]) {
                st.erase({dis[v], v});
                dis[v] = dis[u] + w;
                st.insert({dis[v], v});
            }
    }
}

void query() {
    int x, y;
    cin >> x >> y;
    for (int i = 1; i <= x; i++) {
        int t;
        cin >> t;
        vec1.push_back(t);
    }
    for (int i = 1; i <= y; i++) {
        int t;
        cin >> t;
        vec2.push_back(t);
    }
    dij();
    ll mn = INF;
    for (auto t: vec2)
        mn = min(mn, dis[t]);
    cout << mn << '\n';
    vec1.clear();
    vec2.clear();
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    readInput();
    while (q--)
        query();
    cout.flush();
    return  0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccGeE63r.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccBa2Rbs.o:factories.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccGeE63r.o: in function `main':
grader.cpp:(.text.startup+0x37d): undefined reference to `Init(int, int*, int*, int*)'
/usr/bin/ld: grader.cpp:(.text.startup+0x412): undefined reference to `Query(int, int*, int, int*)'
collect2: error: ld returned 1 exit status