oj.uz

Submission #565344

# Submission time Handle Problem Language Result Execution time Memory
565344 2022-05-20T17:54:39 Z shrimb Saveit (IOI10_saveit) C++17
75 / 100
 217 ms 14020 KB 
#include "grader.h"
#include "encoder.h"
#include"bits/stdc++.h"
using namespace std;


void encode(int n, int h, int p, int *v1, int *v2){
    vector<int> adj[n];
    for (int i = 0 ; i < p ; i++) {
        adj[v1[i]].push_back(v2[i]);
        adj[v2[i]].push_back(v1[i]);
    }

    int par[n];
    {
        queue<int> q;
        vector<bool> vis(n);
        q.push(0);
        while (q.size()) {
            auto cur = q.front();
            q.pop();
            for (int j : adj[cur]) {
                if (!vis[j]) {
                    vis[j] = 1;
                    par[j] = cur;
                    q.push(j);
                }
            }
        }
    }
    auto sendnum = [&](int x) {
        for (int k = 0 ; k < 10 ; k++) {
            encode_bit(!!(x & (1 << k)));
        }
    };
    for (int i = 1 ; i < n ; i++) sendnum(par[i]);
    for (int i = 1 ; i < h ; i++) {
        queue<int> q;
        vector<int> dis(n, -1);
        dis[i] = 0;
        q.push(i);
        while (q.size()) {
            auto cur = q.front();
            q.pop();
            for (int j : adj[cur]) {
                if (dis[j] == -1) {
                    dis[j] = dis[cur] + 1;
                    q.push(j);
                }
            }
        }
        for (int i = 1 ; i < n ; i++) {
            int x = dis[i] - dis[par[i]];
            if (x == -1) encode_bit(1), encode_bit(1);
            else if (x == 1) encode_bit(0);
            else encode_bit(1), encode_bit(0);
        }
    }
}

#include "grader.h"
#include "decoder.h"
#include "bits/stdc++.h"
using namespace std;
void decode(int n, int h) {
    vector<int> adj[n];
    int par[n];
    auto getnum = [&]() {
        int ret = 0;
        for (int k = 0 ; k < 10 ; k++) {
            ret |= (1 << k)*decode_bit();
        }
        return ret;
    };
    for (int i = 1 ; i < n ; i++) {
        int x = getnum();
        par[i] = x;
        adj[i].push_back(x);
        adj[x].push_back(i);
    }
    {
        queue<int> q;
        vector<int> dis(n, -1);
        dis[0] = 0;
        q.push(0);
        while (q.size()) {
            auto cur = q.front();
            q.pop();
            for (int j : adj[cur]) {
                if (dis[j] == -1) {
                    dis[j] = dis[cur] + 1;
                    q.push(j);
                }
            }
        }
        for (int i = 0 ; i < n ; i++) {
            hops(0, i, dis[i]);
        }
    }
    int w[n][n];
    for (int i = 1 ; i < h ; i++) {
        for (int j = 1 ; j < n ; j++) {
            int v;
            if (decode_bit()) {
                if (decode_bit()) v = -1;
                else v = 0;
            } else {
                v = 1;
            }
            w[par[j]][j] = v;
            w[j][par[j]] = -v;
        }
        queue<int> q;
        vector<int> dis(n, -1e9);
        dis[i] = 0;
        q.push(i);
        while (q.size()) {
            auto cur = q.front();
            q.pop();
            for (int j : adj[cur]) {
                if (dis[j] == -1e9) {
                    dis[j] = dis[cur] + w[cur][j];
                    q.push(j);
                }
            }
        }
        for (int j = 0 ; j < n ; j++) {
            hops(i, j, dis[j]);
        }
    }
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 14020 KB Output is partially correct - 70402 call(s) of encode_bit()
2 Correct 3 ms 4612 KB Output is correct - 54 call(s) of encode_bit()
3 Correct 28 ms 8536 KB Output is correct - 60986 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 70 call(s) of encode_bit()
5 Correct 30 ms 8788 KB Output is correct - 63441 call(s) of encode_bit()
6 Correct 31 ms 9460 KB Output is partially correct - 71593 call(s) of encode_bit()
7 Correct 50 ms 9840 KB Output is partially correct - 77200 call(s) of encode_bit()
8 Correct 19 ms 8776 KB Output is correct - 51271 call(s) of encode_bit()
9 Correct 27 ms 9196 KB Output is correct - 49156 call(s) of encode_bit()
10 Correct 24 ms 9120 KB Output is correct - 48795 call(s) of encode_bit()
11 Correct 33 ms 9256 KB Output is correct - 52512 call(s) of encode_bit()
12 Correct 22 ms 9212 KB Output is correct - 54632 call(s) of encode_bit()
13 Correct 52 ms 9788 KB Output is partially correct - 70506 call(s) of encode_bit()
14 Correct 28 ms 9192 KB Output is correct - 57621 call(s) of encode_bit()
15 Correct 28 ms 9308 KB Output is correct - 63702 call(s) of encode_bit()
16 Correct 56 ms 9624 KB Output is correct - 62928 call(s) of encode_bit()
17 Correct 41 ms 9700 KB Output is correct - 61726 call(s) of encode_bit()
18 Correct 48 ms 9988 KB Output is correct - 63689 call(s) of encode_bit()
19 Correct 44 ms 9508 KB Output is correct - 63697 call(s) of encode_bit()
20 Correct 56 ms 10288 KB Output is correct - 69571 call(s) of encode_bit()
21 Correct 71 ms 10424 KB Output is correct - 67715 call(s) of encode_bit()
22 Correct 61 ms 10048 KB Output is partially correct - 74473 call(s) of encode_bit()
23 Correct 78 ms 10632 KB Output is partially correct - 72871 call(s) of encode_bit()

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 14020 KB Output is partially correct - 70402 call(s) of encode_bit()
2 Correct 3 ms 4612 KB Output is correct - 54 call(s) of encode_bit()
3 Correct 28 ms 8536 KB Output is correct - 60986 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 70 call(s) of encode_bit()
5 Correct 30 ms 8788 KB Output is correct - 63441 call(s) of encode_bit()
6 Correct 31 ms 9460 KB Output is partially correct - 71593 call(s) of encode_bit()
7 Correct 50 ms 9840 KB Output is partially correct - 77200 call(s) of encode_bit()
8 Correct 19 ms 8776 KB Output is correct - 51271 call(s) of encode_bit()
9 Correct 27 ms 9196 KB Output is correct - 49156 call(s) of encode_bit()
10 Correct 24 ms 9120 KB Output is correct - 48795 call(s) of encode_bit()
11 Correct 33 ms 9256 KB Output is correct - 52512 call(s) of encode_bit()
12 Correct 22 ms 9212 KB Output is correct - 54632 call(s) of encode_bit()
13 Correct 52 ms 9788 KB Output is partially correct - 70506 call(s) of encode_bit()
14 Correct 28 ms 9192 KB Output is correct - 57621 call(s) of encode_bit()
15 Correct 28 ms 9308 KB Output is correct - 63702 call(s) of encode_bit()
16 Correct 56 ms 9624 KB Output is correct - 62928 call(s) of encode_bit()
17 Correct 41 ms 9700 KB Output is correct - 61726 call(s) of encode_bit()
18 Correct 48 ms 9988 KB Output is correct - 63689 call(s) of encode_bit()
19 Correct 44 ms 9508 KB Output is correct - 63697 call(s) of encode_bit()
20 Correct 56 ms 10288 KB Output is correct - 69571 call(s) of encode_bit()
21 Correct 71 ms 10424 KB Output is correct - 67715 call(s) of encode_bit()
22 Correct 61 ms 10048 KB Output is partially correct - 74473 call(s) of encode_bit()
23 Correct 78 ms 10632 KB Output is partially correct - 72871 call(s) of encode_bit()

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 14020 KB Output is partially correct - 70402 call(s) of encode_bit()
2 Correct 3 ms 4612 KB Output is correct - 54 call(s) of encode_bit()
3 Correct 28 ms 8536 KB Output is correct - 60986 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 70 call(s) of encode_bit()
5 Correct 30 ms 8788 KB Output is correct - 63441 call(s) of encode_bit()
6 Correct 31 ms 9460 KB Output is partially correct - 71593 call(s) of encode_bit()
7 Correct 50 ms 9840 KB Output is partially correct - 77200 call(s) of encode_bit()
8 Correct 19 ms 8776 KB Output is correct - 51271 call(s) of encode_bit()
9 Correct 27 ms 9196 KB Output is correct - 49156 call(s) of encode_bit()
10 Correct 24 ms 9120 KB Output is correct - 48795 call(s) of encode_bit()
11 Correct 33 ms 9256 KB Output is correct - 52512 call(s) of encode_bit()
12 Correct 22 ms 9212 KB Output is correct - 54632 call(s) of encode_bit()
13 Correct 52 ms 9788 KB Output is partially correct - 70506 call(s) of encode_bit()
14 Correct 28 ms 9192 KB Output is correct - 57621 call(s) of encode_bit()
15 Correct 28 ms 9308 KB Output is correct - 63702 call(s) of encode_bit()
16 Correct 56 ms 9624 KB Output is correct - 62928 call(s) of encode_bit()
17 Correct 41 ms 9700 KB Output is correct - 61726 call(s) of encode_bit()
18 Correct 48 ms 9988 KB Output is correct - 63689 call(s) of encode_bit()
19 Correct 44 ms 9508 KB Output is correct - 63697 call(s) of encode_bit()
20 Correct 56 ms 10288 KB Output is correct - 69571 call(s) of encode_bit()
21 Correct 71 ms 10424 KB Output is correct - 67715 call(s) of encode_bit()
22 Correct 61 ms 10048 KB Output is partially correct - 74473 call(s) of encode_bit()
23 Correct 78 ms 10632 KB Output is partially correct - 72871 call(s) of encode_bit()

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 14020 KB Output is partially correct - 70402 call(s) of encode_bit()
2 Correct 3 ms 4612 KB Output is correct - 54 call(s) of encode_bit()
3 Correct 28 ms 8536 KB Output is correct - 60986 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 70 call(s) of encode_bit()
5 Correct 30 ms 8788 KB Output is correct - 63441 call(s) of encode_bit()
6 Correct 31 ms 9460 KB Output is partially correct - 71593 call(s) of encode_bit()
7 Correct 50 ms 9840 KB Output is partially correct - 77200 call(s) of encode_bit()
8 Correct 19 ms 8776 KB Output is correct - 51271 call(s) of encode_bit()
9 Correct 27 ms 9196 KB Output is correct - 49156 call(s) of encode_bit()
10 Correct 24 ms 9120 KB Output is correct - 48795 call(s) of encode_bit()
11 Correct 33 ms 9256 KB Output is correct - 52512 call(s) of encode_bit()
12 Correct 22 ms 9212 KB Output is correct - 54632 call(s) of encode_bit()
13 Correct 52 ms 9788 KB Output is partially correct - 70506 call(s) of encode_bit()
14 Correct 28 ms 9192 KB Output is correct - 57621 call(s) of encode_bit()
15 Correct 28 ms 9308 KB Output is correct - 63702 call(s) of encode_bit()
16 Correct 56 ms 9624 KB Output is correct - 62928 call(s) of encode_bit()
17 Correct 41 ms 9700 KB Output is correct - 61726 call(s) of encode_bit()
18 Correct 48 ms 9988 KB Output is correct - 63689 call(s) of encode_bit()
19 Correct 44 ms 9508 KB Output is correct - 63697 call(s) of encode_bit()
20 Correct 56 ms 10288 KB Output is correct - 69571 call(s) of encode_bit()
21 Correct 71 ms 10424 KB Output is correct - 67715 call(s) of encode_bit()
22 Correct 61 ms 10048 KB Output is partially correct - 74473 call(s) of encode_bit()
23 Correct 78 ms 10632 KB Output is partially correct - 72871 call(s) of encode_bit()