oj.uz

Submission #1114717

# Submission time Handle Problem Language Result Execution time Memory
1114717 2024-11-19T13:10:45 Z _8_8_ Unique Cities (JOI19_ho_t5) C++17
4 / 100
 2000 ms 47944 KB 
#include <bits/stdc++.h>
    
using namespace std;
    
typedef long long ll;
    
const int  N = (1 << 20) + 12, MOD = (int)1e9 + 7;

int n, m, a[N], vis[N], timer, p[N];
vector<int> g[N];
int f(int d) {
    timer++;
    vis[d] = timer;
    int lst = d;
    queue<int> q;
    q.push(d);
    while(!q.empty()) {
        int v = q.front();
        lst = v;
        q.pop();
        for(int to : g[v]) {
            if(vis[to] != timer) {
                q.push(to);
                p[to] = v;
                vis[to] = timer;
            }
        }
    }
    int x = lst;
    timer++;
    vis[d] = timer;
    while(x != d) {
        vis[x] = timer;
        x = p[x];
    }
    return lst;
}
int dist[N], col[N];
void test() {
    cin >> n >> m;
    for(int i = 1; i <= n - 1; i++) {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    for(int i = 1; i <= n; i++) 
        cin >> a[i];
    int d = f(1), d1 = f(d);
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= n; j++) {
            dist[j] = col[j] = 0;
        }
        dist[i] = 1;
        queue<int> q;
        q.push(i);
        set<int> st;
        while(!q.empty()) {
            int v = q.front();
            q.pop();
            col[dist[v]]++;
            for(int to : g[v]) {
                if(dist[to] == 0) {
                    dist[to] = dist[v] + 1;
                    q.push(to);
                }
            }
        }
        for(int j = 1; j <= n; j++) if(j != i) {
            if(col[dist[j]] == 1) {
                st.insert(a[j]);
            }
        }
        cout << (int)st.size() << '\n';
    }
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int t = 1; 
    // cin >> t;

    while(t--) 
        test();
}

Compilation message

joi2019_ho_t5.cpp: In function 'void test()':
joi2019_ho_t5.cpp:49:19: warning: unused variable 'd1' [-Wunused-variable]
   49 |     int d = f(1), d1 = f(d);
      |                   ^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 31240 KB Output is correct
2 Correct 44 ms 31312 KB Output is correct
3 Correct 48 ms 31312 KB Output is correct
4 Correct 52 ms 31368 KB Output is correct
5 Correct 50 ms 25244 KB Output is correct
6 Correct 104 ms 25244 KB Output is correct
7 Correct 53 ms 31312 KB Output is correct
8 Correct 35 ms 26960 KB Output is correct
9 Correct 52 ms 26960 KB Output is correct
10 Correct 46 ms 26976 KB Output is correct
11 Correct 51 ms 31312 KB Output is correct
12 Correct 33 ms 31364 KB Output is correct
13 Correct 91 ms 27216 KB Output is correct
14 Correct 48 ms 27288 KB Output is correct
15 Correct 50 ms 29324 KB Output is correct
16 Correct 27 ms 31380 KB Output is correct
17 Correct 63 ms 31312 KB Output is correct
18 Correct 55 ms 31356 KB Output is correct
19 Correct 48 ms 26960 KB Output is correct
20 Correct 212 ms 25168 KB Output is correct
21 Correct 77 ms 31312 KB Output is correct
22 Correct 46 ms 25112 KB Output is correct
23 Correct 61 ms 27120 KB Output is correct
24 Correct 43 ms 27132 KB Output is correct
25 Correct 48 ms 31312 KB Output is correct
26 Correct 36 ms 31376 KB Output is correct
27 Correct 150 ms 27160 KB Output is correct
28 Correct 115 ms 31312 KB Output is correct
29 Correct 59 ms 27140 KB Output is correct
30 Correct 29 ms 26960 KB Output is correct
31 Correct 98 ms 26960 KB Output is correct
32 Correct 68 ms 26960 KB Output is correct

Subtask #2
0 / 32.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2031 ms 34376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 32.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2045 ms 47944 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 31240 KB Output is correct
2 Correct 44 ms 31312 KB Output is correct
3 Correct 48 ms 31312 KB Output is correct
4 Correct 52 ms 31368 KB Output is correct
5 Correct 50 ms 25244 KB Output is correct
6 Correct 104 ms 25244 KB Output is correct
7 Correct 53 ms 31312 KB Output is correct
8 Correct 35 ms 26960 KB Output is correct
9 Correct 52 ms 26960 KB Output is correct
10 Correct 46 ms 26976 KB Output is correct
11 Correct 51 ms 31312 KB Output is correct
12 Correct 33 ms 31364 KB Output is correct
13 Correct 91 ms 27216 KB Output is correct
14 Correct 48 ms 27288 KB Output is correct
15 Correct 50 ms 29324 KB Output is correct
16 Correct 27 ms 31380 KB Output is correct
17 Correct 63 ms 31312 KB Output is correct
18 Correct 55 ms 31356 KB Output is correct
19 Correct 48 ms 26960 KB Output is correct
20 Correct 212 ms 25168 KB Output is correct
21 Correct 77 ms 31312 KB Output is correct
22 Correct 46 ms 25112 KB Output is correct
23 Correct 61 ms 27120 KB Output is correct
24 Correct 43 ms 27132 KB Output is correct
25 Correct 48 ms 31312 KB Output is correct
26 Correct 36 ms 31376 KB Output is correct
27 Correct 150 ms 27160 KB Output is correct
28 Correct 115 ms 31312 KB Output is correct
29 Correct 59 ms 27140 KB Output is correct
30 Correct 29 ms 26960 KB Output is correct
31 Correct 98 ms 26960 KB Output is correct
32 Correct 68 ms 26960 KB Output is correct
33 Execution timed out 2031 ms 34376 KB Time limit exceeded
34 Halted 0 ms 0 KB -