Submission #1150069

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150069		BlockOG	Friend (IOI14_friend)	C++20	0 / 100	1 ms	584 KiB

friend

#include "friend.h"
#include <set>
#include <vector>

// meow meow meow mewo mrrow nya nya :3c
// go play vivid/stasis! it's very awesome gmae on steam

using namespace std;

vector<int> friends[10000];

int findSample(int n, int confidence[], int host[], int protocol[]) {
    if (n > 10) return 0;

    for (int i = 1; i < n; i++) friends[host[i]].push_back(i), friends[i].push_back(host[i]);

    int res = 0;
    for (int i = 0; i < (1 << n); i++) {
        set<int> used;
        int wow = 0;
        for (int j = 0, k = i; k; j++, k >>= 1) {
            if (k & 1) {
                if (used.count(j)) goto weh;
                wow += confidence[j];
                for (int ah : friends[j]) used.insert(ah);
            }
        }

        if (wow > res) res = wow;

    weh:;
    }

    return res;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31