Submission #848550

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
848550	2023-09-12T21:48:07 Z	toma_ariciu	Traffic (IOI10_traffic)	C++17	Compilation error	0 ms	0 KB

traffic

#include <vector>

using namespace std;
#define int long long

const int maxN = 1000005;
int sz[maxN], bestDiff, bestCity, total;
vector <int> G[maxN];

void dfs(int nod, int tata) {
    int currDiff = 0;
    for (int vecin : G[nod]) {
        if (vecin == tata) {
            continue;
        }
        dfs(vecin, nod);
        sz[nod] += sz[vecin];
        currDiff = max(currDiff, sz[vecin]);
    }
    currDiff = max(currDiff, total - sz[nod]);
    if (currDiff < bestDiff) {
        bestDiff = currDiff;
        bestCity = nod;
    }
}

int LocateCentre(int N, int P[], int S[], int D[]) {
    for (int i = 0; i < N; i++) {
        sz[i] += P[i];
        total += P[i];
    }
    bestDiff = 2e9 + 5;
    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);
    return bestCity;
}

Compilation message

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