Submission #874085

#	Time	Username	Problem	Language	Result	Execution time	Memory
874085		Fenixion	Friend (IOI14_friend)	C++14	Compilation error	0 ms	0 KiB

friend

#include <bits/stdc++.h>
//#include "friend.h"


using namespace std;
#define int long long

int findSample(int n, int confidence[], int host[], int protocol[]) {

    vector<vector<int>> adjlist(n, vector<int>(n, 1)); //1 not connected, 0 connected

    for (int i=1;i<n;i++) {
        if (protocol[i] == 0) {
            adjlist[host[i]][i] = 0;
            adjlist[i][host[i]] = 0;
        }

        else if (protocol[i] == 1) {
            for (auto x : adjlist[host[i]]) {
                if (adjlist[x][host[i]] == 0) {
                    adjlist[i][x] = 0;
                    adjlist[x][i] = 0;
                }
            }
        }

        else {
            for (auto x : adjlist[host[i]]) {
                if (adjlist[x][host[i]] == 0) {
                    adjlist[i][x] = 0;
                    adjlist[x][i] = 0;
                }
            }
            adjlist[host[i]][i] = 0;
            adjlist[i][host[i]] = 0;
        }
    }

    vector<vector<int>> newadj(n+1, vector<int>());

    for (int i=0;i<n;i++) {
        for (int j=0;j<n;j++) {
            if (adjlist[i][j]) {
                newadj[i].push_back(j);
                newadj[j].push_back(i);
            }
        }
    }

    int ans = 0;
    if (protocol[1] == 1) {
        for (int i=0;i<n;i++) {
            ans += confidence[i];
        }
    }

    else if (protocol[1] == 2) {
        for (int i=0;i<n;i++) {
            ans = max(ans, confidence[i]);
        }
    }


    return ans;
}
signed main() {

    ios::sync_with_stdio(); cin.tie(0); cout.tie(0);

    int n;
    cin >> n;

    int confidence[n+5], host[n+5], protocol[n+5];
    for (int i=0;i<n;i++) {
        cin >> confidence[i];
    }


    for (int i=1; i<n;i++) {
        cin >> host[i] >> protocol[i];
    }


    cout << findSample(n, confidence, host, protocol);





}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccCaJyIx.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cctWLo6v.o:friend.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccCaJyIx.o: in function `main':
grader.cpp:(.text.startup+0xdd): undefined reference to `findSample(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status