Submission #731694

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
731694	2023-04-27T19:49:18 Z	Desh03	Regions (IOI09_regions)	C++17	19 / 100	8000 ms	25000 KB

regions

#include <bits/stdc++.h>
using namespace std;

vector<int> r[25000], g[200000], euler;
int in[200000], out[200000];
short int c[200000];
int t;

void dfs(int u) {
    in[u] = t++;
    euler.push_back(c[u]);
    for (int v : g[u])
        dfs(v);
    out[u] = t - 1;
}

int main() {
    int n, rr, qq;
    cin >> n >> rr >> qq;
    int x, h;
    cin >> h;
    h--;
    r[h].push_back(0);
    c[0] = h;
    for (int i = 1; i < n; i++) {
        cin >> x >> h;
        x--, h--;
        r[h].push_back(i);
        g[x].push_back(i);
        c[i] = h;
    }
    dfs(0);
    while (qq--) {
        int a, b;
        cin >> a >> b;
        a--, b--;
        int ans = 0;
        for (int u : r[a]) {
           for (int i = in[u] + 1; i <= out[u]; i++) {
                ans += euler[i] == b;
           }
        }
        cout << ans << '\n';
    }
}

Subtask #1

14.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	5584 KB	Output is correct
2	Correct	3 ms	5584 KB	Output is correct
3	Correct	6 ms	5584 KB	Output is correct
4	Correct	5 ms	5584 KB	Output is correct
5	Correct	10 ms	5584 KB	Output is correct
6	Correct	23 ms	5584 KB	Output is correct
7	Correct	26 ms	5584 KB	Output is correct
8	Correct	38 ms	5712 KB	Output is correct
9	Correct	193 ms	6096 KB	Output is correct
10	Correct	104 ms	6128 KB	Output is correct
11	Correct	252 ms	6372 KB	Output is correct
12	Correct	845 ms	6944 KB	Output is correct
13	Correct	164 ms	6608 KB	Output is correct
14	Correct	457 ms	7160 KB	Output is correct
15	Execution timed out	8084 ms	9544 KB	Time limit exceeded

Subtask #2

5.0 / 85.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	8069 ms	10132 KB	Time limit exceeded
2	Execution timed out	8045 ms	9028 KB	Time limit exceeded
3	Execution timed out	8004 ms	11976 KB	Time limit exceeded
4	Correct	1383 ms	7372 KB	Output is correct
5	Execution timed out	8023 ms	8904 KB	Time limit exceeded
6	Execution timed out	8077 ms	8268 KB	Time limit exceeded
7	Execution timed out	8080 ms	9412 KB	Time limit exceeded
8	Execution timed out	8038 ms	14084 KB	Time limit exceeded
9	Execution timed out	8009 ms	14604 KB	Time limit exceeded
10	Execution timed out	8052 ms	18876 KB	Time limit exceeded
11	Execution timed out	8045 ms	14008 KB	Time limit exceeded
12	Execution timed out	8071 ms	15700 KB	Time limit exceeded
13	Execution timed out	8083 ms	15816 KB	Time limit exceeded
14	Execution timed out	8079 ms	15568 KB	Time limit exceeded
15	Execution timed out	8070 ms	19676 KB	Time limit exceeded
16	Execution timed out	8089 ms	25000 KB	Time limit exceeded
17	Execution timed out	8048 ms	23860 KB	Time limit exceeded