oj.uz

Submission #566776

# Submission time Handle Problem Language Result Execution time Memory
566776 2022-05-22T20:33:04 Z shrimb Saveit (IOI10_saveit) C++17
75 / 100
 220 ms 14016 KB 
#include<bits/stdc++.h>
#include "grader.h"
#include "encoder.h"

using namespace std;




void encode(int n, int h, int p, int a[], int b[]){

    vector<int>adj[n];


    int dis[n],par[n];
    for(int i = 0; i < n; i++) {
        dis[i] = 1000000000;
    }
    for(int i = 0; i < p; i++){
        adj[a[i]].push_back(b[i]);
        adj[b[i]].push_back(a[i]);
    }
    memset(par, -1, sizeof par);
    dis[0] = par[0] = 0;
    vector<int>d = {0};
    int j = 0;
    while(j < d.size()){
        for(auto s: adj[d[j]]){
            if(dis[s] == 1000000000){
                dis[s] = dis[d[j]] + 1;
                par[s] = d[j];
                d.push_back(s);
            }
        }
        j++;
    }

    for(int i = 1; i < n; i++){
        // if (par[i] == -1) assert(0);
        for(int k = 0; k < 10; k++){
            if(par[i] & (1 << k)) encode_bit(1);
            else encode_bit(0);
        }
    }
    for(int i = 1; i < h; i++){
        vector<int>pc(n, 1000000000);
        pc[i] = 0;
        int j = 0;
        vector<int>b = {i};
        while(j < b.size()){
            for(auto s:adj[b[j]]){
                if(pc[s] == 1000000000){
                    pc[s] = pc[b[j]] + 1;
                    b.push_back(s);
                }
            }
            j++;
        }
        for(int k = 1; k < n; k++){
            int diff = pc[k] - pc[par[k]];
            if(diff != 0){
                encode_bit(1);
                if(diff < 0) encode_bit(1);
                else encode_bit(0);
            }else{
                encode_bit(0);
            }
        }
    }


}

#include<bits/stdc++.h>
#include "grader.h"
#include "decoder.h"

using namespace std;


void decode(int n, int h){
    int dis[n],p[n],j;
    vector<int> diff[n];
    vector<int>adj[n];


    j = 0;
    for(int i = 0; i < n; i++) {
        diff[i].resize(n);
        dis[i] = 1000000000;
    }
    for(int i = 0; i < n; i++){
        for(int k = 0; k < n; k++) diff[i][k] = 0;
    }
    for(int i = 1; i < n; i++){
        int parent = 0;
        for(int k = 0; k < 10; k++){
            if(decode_bit()) parent += (1 << k);
        }
        p[i] = parent;
        adj[i].push_back(parent);
        adj[parent].push_back(i);
    }
    dis[0] = j = 0;
    vector<int>b = {0};
    while(j < b.size()){
        // cerr << j << endl;
        for(auto s: adj[b[j]]){
            if(dis[s] == 1000000000){
                dis[s] = dis[b[j]] + 1;
                b.push_back(s);
            }
        }
        j++;
    }
    for(int i = 0; i < n; i++) {
        if (dis[i] == 1000000000) assert(0);
        hops(0,i, dis[i]);
    }


    for(int i = 1; i < h; i++){
        for(int k = 1; k < n; k++){
            if(!decode_bit()){
                diff[k][p[k]] = diff[p[k]][k] = 0;
            }else{
                if(decode_bit()){
                    diff[k][p[k]] = 1;
                    diff[p[k]][k] = -1;
                }else{
                    diff[p[k]][k] = 1;
                    diff[k][p[k]] = -1;
                }
            }
        }
        vector<int>pc(n, 1000000000);
        pc[i] = j = 0;
        vector<int>bb = {i};
        while(j < bb.size()){
            for(auto s:adj[bb[j]]){
                if(pc[s] == 1000000000){
                    pc[s] = pc[bb[j]] + diff[bb[j]][s];
                    bb.push_back(s);
                }
            }
            j++;
        }
        for(int t = 0; t < n; t++){
            // if (pc[t] == 1000000000) cerr << t <<  endl;
            hops(i,t,pc[t]);
        }
    }

}

Compilation message

encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:27:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     while(j < d.size()){
      |           ~~^~~~~~~~~~
encoder.cpp:50:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         while(j < b.size()){
      |               ~~^~~~~~~~~~

decoder.cpp: In function 'void decode(int, int)':
decoder.cpp:33:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     while(j < b.size()){
      |           ~~^~~~~~~~~~
decoder.cpp:66:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         while(j < bb.size()){
      |               ~~^~~~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 220 ms 14016 KB Output is correct - 62913 call(s) of encode_bit()
2 Correct 3 ms 4604 KB Output is correct - 52 call(s) of encode_bit()
3 Correct 26 ms 8488 KB Output is correct - 58901 call(s) of encode_bit()
4 Correct 2 ms 4648 KB Output is correct - 62 call(s) of encode_bit()
5 Correct 24 ms 8600 KB Output is correct - 56288 call(s) of encode_bit()
6 Correct 26 ms 9532 KB Output is correct - 60905 call(s) of encode_bit()
7 Correct 40 ms 9624 KB Output is correct - 50828 call(s) of encode_bit()
8 Correct 26 ms 9064 KB Output is partially correct - 76800 call(s) of encode_bit()
9 Correct 30 ms 9452 KB Output is partially correct - 78646 call(s) of encode_bit()
10 Correct 27 ms 9500 KB Output is partially correct - 78245 call(s) of encode_bit()
11 Correct 31 ms 9576 KB Output is partially correct - 76543 call(s) of encode_bit()
12 Correct 31 ms 9544 KB Output is partially correct - 79920 call(s) of encode_bit()
13 Correct 41 ms 9944 KB Output is correct - 58326 call(s) of encode_bit()
14 Correct 27 ms 9424 KB Output is partially correct - 77694 call(s) of encode_bit()
15 Correct 32 ms 9400 KB Output is partially correct - 76176 call(s) of encode_bit()
16 Correct 47 ms 9900 KB Output is partially correct - 72118 call(s) of encode_bit()
17 Correct 43 ms 9892 KB Output is partially correct - 74009 call(s) of encode_bit()
18 Correct 50 ms 10176 KB Output is correct - 69823 call(s) of encode_bit()
19 Correct 39 ms 9628 KB Output is correct - 66843 call(s) of encode_bit()
20 Correct 64 ms 10288 KB Output is correct - 63570 call(s) of encode_bit()
21 Correct 65 ms 10436 KB Output is correct - 64320 call(s) of encode_bit()
22 Correct 56 ms 9768 KB Output is correct - 53039 call(s) of encode_bit()
23 Correct 63 ms 10680 KB Output is correct - 56825 call(s) of encode_bit()

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 220 ms 14016 KB Output is correct - 62913 call(s) of encode_bit()
2 Correct 3 ms 4604 KB Output is correct - 52 call(s) of encode_bit()
3 Correct 26 ms 8488 KB Output is correct - 58901 call(s) of encode_bit()
4 Correct 2 ms 4648 KB Output is correct - 62 call(s) of encode_bit()
5 Correct 24 ms 8600 KB Output is correct - 56288 call(s) of encode_bit()
6 Correct 26 ms 9532 KB Output is correct - 60905 call(s) of encode_bit()
7 Correct 40 ms 9624 KB Output is correct - 50828 call(s) of encode_bit()
8 Correct 26 ms 9064 KB Output is partially correct - 76800 call(s) of encode_bit()
9 Correct 30 ms 9452 KB Output is partially correct - 78646 call(s) of encode_bit()
10 Correct 27 ms 9500 KB Output is partially correct - 78245 call(s) of encode_bit()
11 Correct 31 ms 9576 KB Output is partially correct - 76543 call(s) of encode_bit()
12 Correct 31 ms 9544 KB Output is partially correct - 79920 call(s) of encode_bit()
13 Correct 41 ms 9944 KB Output is correct - 58326 call(s) of encode_bit()
14 Correct 27 ms 9424 KB Output is partially correct - 77694 call(s) of encode_bit()
15 Correct 32 ms 9400 KB Output is partially correct - 76176 call(s) of encode_bit()
16 Correct 47 ms 9900 KB Output is partially correct - 72118 call(s) of encode_bit()
17 Correct 43 ms 9892 KB Output is partially correct - 74009 call(s) of encode_bit()
18 Correct 50 ms 10176 KB Output is correct - 69823 call(s) of encode_bit()
19 Correct 39 ms 9628 KB Output is correct - 66843 call(s) of encode_bit()
20 Correct 64 ms 10288 KB Output is correct - 63570 call(s) of encode_bit()
21 Correct 65 ms 10436 KB Output is correct - 64320 call(s) of encode_bit()
22 Correct 56 ms 9768 KB Output is correct - 53039 call(s) of encode_bit()
23 Correct 63 ms 10680 KB Output is correct - 56825 call(s) of encode_bit()

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 220 ms 14016 KB Output is correct - 62913 call(s) of encode_bit()
2 Correct 3 ms 4604 KB Output is correct - 52 call(s) of encode_bit()
3 Correct 26 ms 8488 KB Output is correct - 58901 call(s) of encode_bit()
4 Correct 2 ms 4648 KB Output is correct - 62 call(s) of encode_bit()
5 Correct 24 ms 8600 KB Output is correct - 56288 call(s) of encode_bit()
6 Correct 26 ms 9532 KB Output is correct - 60905 call(s) of encode_bit()
7 Correct 40 ms 9624 KB Output is correct - 50828 call(s) of encode_bit()
8 Correct 26 ms 9064 KB Output is partially correct - 76800 call(s) of encode_bit()
9 Correct 30 ms 9452 KB Output is partially correct - 78646 call(s) of encode_bit()
10 Correct 27 ms 9500 KB Output is partially correct - 78245 call(s) of encode_bit()
11 Correct 31 ms 9576 KB Output is partially correct - 76543 call(s) of encode_bit()
12 Correct 31 ms 9544 KB Output is partially correct - 79920 call(s) of encode_bit()
13 Correct 41 ms 9944 KB Output is correct - 58326 call(s) of encode_bit()
14 Correct 27 ms 9424 KB Output is partially correct - 77694 call(s) of encode_bit()
15 Correct 32 ms 9400 KB Output is partially correct - 76176 call(s) of encode_bit()
16 Correct 47 ms 9900 KB Output is partially correct - 72118 call(s) of encode_bit()
17 Correct 43 ms 9892 KB Output is partially correct - 74009 call(s) of encode_bit()
18 Correct 50 ms 10176 KB Output is correct - 69823 call(s) of encode_bit()
19 Correct 39 ms 9628 KB Output is correct - 66843 call(s) of encode_bit()
20 Correct 64 ms 10288 KB Output is correct - 63570 call(s) of encode_bit()
21 Correct 65 ms 10436 KB Output is correct - 64320 call(s) of encode_bit()
22 Correct 56 ms 9768 KB Output is correct - 53039 call(s) of encode_bit()
23 Correct 63 ms 10680 KB Output is correct - 56825 call(s) of encode_bit()

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 220 ms 14016 KB Output is correct - 62913 call(s) of encode_bit()
2 Correct 3 ms 4604 KB Output is correct - 52 call(s) of encode_bit()
3 Correct 26 ms 8488 KB Output is correct - 58901 call(s) of encode_bit()
4 Correct 2 ms 4648 KB Output is correct - 62 call(s) of encode_bit()
5 Correct 24 ms 8600 KB Output is correct - 56288 call(s) of encode_bit()
6 Correct 26 ms 9532 KB Output is correct - 60905 call(s) of encode_bit()
7 Correct 40 ms 9624 KB Output is correct - 50828 call(s) of encode_bit()
8 Correct 26 ms 9064 KB Output is partially correct - 76800 call(s) of encode_bit()
9 Correct 30 ms 9452 KB Output is partially correct - 78646 call(s) of encode_bit()
10 Correct 27 ms 9500 KB Output is partially correct - 78245 call(s) of encode_bit()
11 Correct 31 ms 9576 KB Output is partially correct - 76543 call(s) of encode_bit()
12 Correct 31 ms 9544 KB Output is partially correct - 79920 call(s) of encode_bit()
13 Correct 41 ms 9944 KB Output is correct - 58326 call(s) of encode_bit()
14 Correct 27 ms 9424 KB Output is partially correct - 77694 call(s) of encode_bit()
15 Correct 32 ms 9400 KB Output is partially correct - 76176 call(s) of encode_bit()
16 Correct 47 ms 9900 KB Output is partially correct - 72118 call(s) of encode_bit()
17 Correct 43 ms 9892 KB Output is partially correct - 74009 call(s) of encode_bit()
18 Correct 50 ms 10176 KB Output is correct - 69823 call(s) of encode_bit()
19 Correct 39 ms 9628 KB Output is correct - 66843 call(s) of encode_bit()
20 Correct 64 ms 10288 KB Output is correct - 63570 call(s) of encode_bit()
21 Correct 65 ms 10436 KB Output is correct - 64320 call(s) of encode_bit()
22 Correct 56 ms 9768 KB Output is correct - 53039 call(s) of encode_bit()
23 Correct 63 ms 10680 KB Output is correct - 56825 call(s) of encode_bit()