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Submission #1004591

# Submission time Handle Problem Language Result Execution time Memory
1004591 2024-06-21T10:13:03 Z spensa Connecting Supertrees (IOI20_supertrees) C++17
21 / 100
 528 ms 70992 KB 
#include "supertrees.h"
#include <iostream>
#include <vector>
#include <map>
#include <set>
using namespace std;

int construct(std::vector<std::vector<int>> p) {
    //subtask 2: star graph, but as connected components
	int n = p.size();
    vector<vector<int>> ans(n, vector<int> (n));  

    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            ans[i][j] = 0;
        }
    }

    map<int, vector<int>> cc;
    vector<int> flags;
    flags.push_back(0);
    cc[0].push_back(0);
    for(int i=1; i<n; i++){
        int tmp = 0;
        for(int j: flags){
            if(p[i][j]==0) continue;
            ans[i][j] = 1;
            ans[j][i] = 1;
            cc[j].push_back(i);
            tmp++;
            // break;
        }
        if(tmp>=2) return 0;
        if(tmp==0){
            flags.push_back(i);
            cc[i].push_back(i);
        }
    }

    // set<pair<int, int>> act;
    set<pair<int,int>> act;
    for(auto i: cc){
        // cout<<"i.first="<<i.first<<"\n";
        for(int j: i.second){
            for(int k: i.second){
                act.insert(make_pair(j, k));
                act.insert(make_pair(k, j));
                
                // // cout<<"ABORT";
                // if(p[j][k]==0){
                //     // cout<<"j="<<j<<" k="<<k<<"\n";
                //     // cout<<"NOPE\n";
                //     return 0;
                // }
            }
        }
    }

    // for(auto i: act) cout<<i.first<<" "<<i.second<<"\n";
    // cout<<"\n";

    // sort(act.begin(), act.end());
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            // cout<<"here";
            if(p[i][j]==0){
                if(act.count({i,j})==1) return 0;
            }
            else{
                if(act.count({i,j})==0) return 0;
            }
        }
    }

    build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 14 ms 3164 KB Output is correct
7 Correct 528 ms 70992 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 14 ms 3164 KB Output is correct
7 Correct 528 ms 70992 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1432 KB Output is correct
13 Correct 121 ms 24148 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 960 KB Output is correct
17 Correct 56 ms 14212 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6572 KB Output is correct
21 Correct 145 ms 28820 KB Output is correct
22 Correct 145 ms 24144 KB Output is correct
23 Correct 295 ms 47440 KB Output is correct
24 Correct 161 ms 24196 KB Output is correct
25 Correct 95 ms 18808 KB Output is correct
26 Correct 46 ms 14160 KB Output is correct
27 Correct 351 ms 47604 KB Output is correct
28 Correct 160 ms 24188 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 428 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 432 KB Too few ways to get from 0 to 1, should be 2 found 1
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 14 ms 3164 KB Output is correct
7 Correct 528 ms 70992 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1432 KB Output is correct
13 Correct 121 ms 24148 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 960 KB Output is correct
17 Correct 56 ms 14212 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6572 KB Output is correct
21 Correct 145 ms 28820 KB Output is correct
22 Correct 145 ms 24144 KB Output is correct
23 Correct 295 ms 47440 KB Output is correct
24 Correct 161 ms 24196 KB Output is correct
25 Correct 95 ms 18808 KB Output is correct
26 Correct 46 ms 14160 KB Output is correct
27 Correct 351 ms 47604 KB Output is correct
28 Correct 160 ms 24188 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Incorrect 0 ms 428 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 14 ms 3164 KB Output is correct
7 Correct 528 ms 70992 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1432 KB Output is correct
13 Correct 121 ms 24148 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 960 KB Output is correct
17 Correct 56 ms 14212 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6572 KB Output is correct
21 Correct 145 ms 28820 KB Output is correct
22 Correct 145 ms 24144 KB Output is correct
23 Correct 295 ms 47440 KB Output is correct
24 Correct 161 ms 24196 KB Output is correct
25 Correct 95 ms 18808 KB Output is correct
26 Correct 46 ms 14160 KB Output is correct
27 Correct 351 ms 47604 KB Output is correct
28 Correct 160 ms 24188 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Incorrect 0 ms 428 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -