oj.uz

Submission #566126

# Submission time Handle Problem Language Result Execution time Memory
566126 2022-05-21T20:51:13 Z RealSnake Saveit (IOI10_saveit) C++14
50 / 100
 218 ms 12396 KB 
#include "bits/stdc++.h"
using namespace std;
#include "grader.h"
#include "encoder.h"

void encode(int n, int h, int p, int a[], int b[]) {
    vector<int> v[n];
    for(int i = 0; i < p; i++) {
        v[a[i]].push_back(b[i]);
        v[b[i]].push_back(a[i]);
    }
    set<int> s;
    s.insert(0);
    int par[n] = {};
    par[0] = 1;
    vector<int> v2[n];
    while(s.size()) {
        int x = *s.begin();
        s.erase(s.begin());
        for(int i : v[x]) {
            if(!par[i]) {
                v2[x].push_back(i);
                par[i] = x + 1;
                s.insert(i);
            }
        }
        sort(v2[x].begin(), v2[x].end());
    }
    for(int i = 1; i < n; i++) {
        int x = par[i] - 1;
        for(int j = 0; j < 10; j++)
            encode_bit(((x & (1 << j)) > 0));
    }
    int ans[n][h];
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < h; j++)
            ans[i][j] = 1e9;
    }
    set<pair<int, pair<int, int>>> ss;
    for(int i = 0; i < h; i++) {
        ss.insert({0, {i, i}});
        ans[i][i] = 0;
    }
    while(ss.size()) {
        pair<int, pair<int, int>> p = *ss.begin();
        ss.erase(ss.begin());
        int x = p.second.first, hub = p.second.second;
        int cost = p.first;
        if(cost > ans[x][hub])
            continue;
        for(int i : v[x]) {
            if(cost + 1 < ans[i][hub]) {
                ans[i][hub] = cost + 1;
                ss.insert({cost + 1, {i, hub}});
            }
        }
    }
    for(int i = 0; i < h; i++) {
        int x = ans[0][i];
        for(int j = 0; j < 10; j++)
            encode_bit(((x & (1 << j)) > 0));
        s.insert(0);
        while(s.size()) {
            x = *s.begin();
            s.erase(s.begin());
            for(int j : v2[x]) {
                int dif = ans[j][i] - ans[x][i];
                if(dif == 0)
                    encode_bit(0);
                else {
                    encode_bit(1);
                    if(dif == 1)
                        encode_bit(1);
                    else
                        encode_bit(0);
                }
                s.insert(j);
            }
        }
    }
}
#include "bits/stdc++.h"
using namespace std;
#include "grader.h"
#include "decoder.h"

void decode(int n, int h) {
    vector<int> v[n];
    for(int i = 1; i < n; i++) {
        int x = 0;
        for(int j = 0; j < 10; j++) {
            if(decode_bit())
                x += (1 << j);
        }
        v[x].push_back(i);
    }
    for(int i = 0; i < h; i++) {
        int b[n];
        b[0] = 0;
        for(int j = 0; j < 10; j++) {
            if(decode_bit())
                b[0] += (1 << j);
        }
        set<int> s;
        s.insert(0);
        while(s.size()) {
            int x = *s.begin();
            s.erase(s.begin());
            hops(i, x, b[x]);
            for(int j : v[x]) {
                int dif = decode_bit();
                if(dif) {
                    if(!decode_bit())
                        dif = -1;
                }
                b[j] = b[x] + dif;
                s.insert(j);
            }
        }
    }
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 12396 KB Output is correct - 65250 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 40 ms 6496 KB Output is correct - 60767 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 120 call(s) of encode_bit()
5 Correct 46 ms 7124 KB Output is correct - 58039 call(s) of encode_bit()
6 Correct 42 ms 7396 KB Output is correct - 62792 call(s) of encode_bit()
7 Correct 60 ms 7920 KB Output is correct - 52996 call(s) of encode_bit()
8 Correct 40 ms 5736 KB Output is partially correct - 79080 call(s) of encode_bit()
9 Correct 36 ms 5760 KB Output is partially correct - 80829 call(s) of encode_bit()
10 Correct 37 ms 5716 KB Output is partially correct - 80649 call(s) of encode_bit()
11 Correct 37 ms 5820 KB Output is partially correct - 78911 call(s) of encode_bit()
12 Correct 30 ms 5624 KB Output is partially correct - 82278 call(s) of encode_bit()
13 Correct 70 ms 7256 KB Output is correct - 60658 call(s) of encode_bit()
14 Correct 36 ms 5712 KB Output is partially correct - 79684 call(s) of encode_bit()
15 Correct 46 ms 5672 KB Output is partially correct - 77014 call(s) of encode_bit()
16 Correct 63 ms 6144 KB Output is partially correct - 75128 call(s) of encode_bit()
17 Correct 55 ms 6364 KB Output is partially correct - 75075 call(s) of encode_bit()
18 Correct 56 ms 6740 KB Output is partially correct - 70702 call(s) of encode_bit()
19 Correct 47 ms 6444 KB Output is correct - 65634 call(s) of encode_bit()
20 Correct 61 ms 7432 KB Output is correct - 64471 call(s) of encode_bit()
21 Correct 80 ms 7440 KB Output is correct - 65403 call(s) of encode_bit()
22 Correct 59 ms 7936 KB Output is correct - 55642 call(s) of encode_bit()
23 Correct 82 ms 8604 KB Output is correct - 57685 call(s) of encode_bit()

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 12396 KB Output is correct - 65250 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 40 ms 6496 KB Output is correct - 60767 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 120 call(s) of encode_bit()
5 Correct 46 ms 7124 KB Output is correct - 58039 call(s) of encode_bit()
6 Correct 42 ms 7396 KB Output is correct - 62792 call(s) of encode_bit()
7 Correct 60 ms 7920 KB Output is correct - 52996 call(s) of encode_bit()
8 Correct 40 ms 5736 KB Output is partially correct - 79080 call(s) of encode_bit()
9 Correct 36 ms 5760 KB Output is partially correct - 80829 call(s) of encode_bit()
10 Correct 37 ms 5716 KB Output is partially correct - 80649 call(s) of encode_bit()
11 Correct 37 ms 5820 KB Output is partially correct - 78911 call(s) of encode_bit()
12 Correct 30 ms 5624 KB Output is partially correct - 82278 call(s) of encode_bit()
13 Correct 70 ms 7256 KB Output is correct - 60658 call(s) of encode_bit()
14 Correct 36 ms 5712 KB Output is partially correct - 79684 call(s) of encode_bit()
15 Correct 46 ms 5672 KB Output is partially correct - 77014 call(s) of encode_bit()
16 Correct 63 ms 6144 KB Output is partially correct - 75128 call(s) of encode_bit()
17 Correct 55 ms 6364 KB Output is partially correct - 75075 call(s) of encode_bit()
18 Correct 56 ms 6740 KB Output is partially correct - 70702 call(s) of encode_bit()
19 Correct 47 ms 6444 KB Output is correct - 65634 call(s) of encode_bit()
20 Correct 61 ms 7432 KB Output is correct - 64471 call(s) of encode_bit()
21 Correct 80 ms 7440 KB Output is correct - 65403 call(s) of encode_bit()
22 Correct 59 ms 7936 KB Output is correct - 55642 call(s) of encode_bit()
23 Correct 82 ms 8604 KB Output is correct - 57685 call(s) of encode_bit()

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 12396 KB Output is correct - 65250 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 40 ms 6496 KB Output is correct - 60767 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 120 call(s) of encode_bit()
5 Correct 46 ms 7124 KB Output is correct - 58039 call(s) of encode_bit()
6 Correct 42 ms 7396 KB Output is correct - 62792 call(s) of encode_bit()
7 Correct 60 ms 7920 KB Output is correct - 52996 call(s) of encode_bit()
8 Correct 40 ms 5736 KB Output is partially correct - 79080 call(s) of encode_bit()
9 Correct 36 ms 5760 KB Output is partially correct - 80829 call(s) of encode_bit()
10 Correct 37 ms 5716 KB Output is partially correct - 80649 call(s) of encode_bit()
11 Correct 37 ms 5820 KB Output is partially correct - 78911 call(s) of encode_bit()
12 Correct 30 ms 5624 KB Output is partially correct - 82278 call(s) of encode_bit()
13 Correct 70 ms 7256 KB Output is correct - 60658 call(s) of encode_bit()
14 Correct 36 ms 5712 KB Output is partially correct - 79684 call(s) of encode_bit()
15 Correct 46 ms 5672 KB Output is partially correct - 77014 call(s) of encode_bit()
16 Correct 63 ms 6144 KB Output is partially correct - 75128 call(s) of encode_bit()
17 Correct 55 ms 6364 KB Output is partially correct - 75075 call(s) of encode_bit()
18 Correct 56 ms 6740 KB Output is partially correct - 70702 call(s) of encode_bit()
19 Correct 47 ms 6444 KB Output is correct - 65634 call(s) of encode_bit()
20 Correct 61 ms 7432 KB Output is correct - 64471 call(s) of encode_bit()
21 Correct 80 ms 7440 KB Output is correct - 65403 call(s) of encode_bit()
22 Correct 59 ms 7936 KB Output is correct - 55642 call(s) of encode_bit()
23 Correct 82 ms 8604 KB Output is correct - 57685 call(s) of encode_bit()

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 12396 KB Output is correct - 65250 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 40 ms 6496 KB Output is correct - 60767 call(s) of encode_bit()
4 Correct 3 ms 4604 KB Output is correct - 120 call(s) of encode_bit()
5 Correct 46 ms 7124 KB Output is correct - 58039 call(s) of encode_bit()
6 Correct 42 ms 7396 KB Output is correct - 62792 call(s) of encode_bit()
7 Correct 60 ms 7920 KB Output is correct - 52996 call(s) of encode_bit()
8 Correct 40 ms 5736 KB Output is partially correct - 79080 call(s) of encode_bit()
9 Correct 36 ms 5760 KB Output is partially correct - 80829 call(s) of encode_bit()
10 Correct 37 ms 5716 KB Output is partially correct - 80649 call(s) of encode_bit()
11 Correct 37 ms 5820 KB Output is partially correct - 78911 call(s) of encode_bit()
12 Correct 30 ms 5624 KB Output is partially correct - 82278 call(s) of encode_bit()
13 Correct 70 ms 7256 KB Output is correct - 60658 call(s) of encode_bit()
14 Correct 36 ms 5712 KB Output is partially correct - 79684 call(s) of encode_bit()
15 Correct 46 ms 5672 KB Output is partially correct - 77014 call(s) of encode_bit()
16 Correct 63 ms 6144 KB Output is partially correct - 75128 call(s) of encode_bit()
17 Correct 55 ms 6364 KB Output is partially correct - 75075 call(s) of encode_bit()
18 Correct 56 ms 6740 KB Output is partially correct - 70702 call(s) of encode_bit()
19 Correct 47 ms 6444 KB Output is correct - 65634 call(s) of encode_bit()
20 Correct 61 ms 7432 KB Output is correct - 64471 call(s) of encode_bit()
21 Correct 80 ms 7440 KB Output is correct - 65403 call(s) of encode_bit()
22 Correct 59 ms 7936 KB Output is correct - 55642 call(s) of encode_bit()
23 Correct 82 ms 8604 KB Output is correct - 57685 call(s) of encode_bit()