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Submission #39831

# Submission time Handle Problem Language Result Execution time Memory
39831 2018-01-20T12:43:43 Z MladenP Bosses (BOI16_bosses) C++14
0 / 100
 0 ms 2212 KB 
#include<bits/stdc++.h>
#define STIZE(x) fprintf(stderr, "STIZE%d\n", x);
#define PRINT(x) fprintf(stderr, "%s = %d\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define endl '\n'
#define mid (l+r)/2
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
#define MAXN 1010
vector<int> adj[MAXN];
lld dist[MAXN], n;
bool pos[MAXN];
queue<pii> q;
lld BFS(int st) {
    for(int i = 1; i <= n; i++) pos[i] = 0;
    q.push({st, 1});
    while(!q.empty()) {
        pii v = q.front(); q.pop();
        int node = v.fi, weight = v.se;
        dist[node] = weight;
        pos[node] = 1;
        for(auto x : adj[node]) {
            if(!pos[x]) {
                q.push({x, weight+1});
            }
        }
    }
    lld rez = 0;
    for(int i = 1; i <= n; i++) {
        if(!pos[i]) return LINF;
        rez += dist[i];
    }
    return rez;
}

int main() {
    ios::sync_with_stdio(false);cin.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++) {
        int k; cin >> k;
        for(int j = 1; j <= k; j++) {
            int x; cin >> x;
            adj[x].pb(i);
        }
    }
    lld rez = LINF;
    for(int i = 1; i <= n; i++) {
        int cur = BFS(i);
        if(cur < rez) {
            rez = cur;
        }
    }
    cout << rez;
    return 0;
}

Subtask #1
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2212 KB Output is correct
2 Incorrect 0 ms 2212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2212 KB Output is correct
2 Incorrect 0 ms 2212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2212 KB Output is correct
2 Incorrect 0 ms 2212 KB Output isn't correct
3 Halted 0 ms 0 KB -