oj.uz

Submission #955723

# Submission time Handle Problem Language Result Execution time Memory
955723 2024-03-31T11:18:13 Z Alexabcde1 Connecting Supertrees (IOI20_supertrees) C++14
56 / 100
 192 ms 31536 KB 
#include <vector>
#include <cstdio>
#include<bits/stdc++.h>
using namespace std;

void build(std::vector<std::vector<int>> b);
vector<long long> bg[1005],sg[1005];
vector<long long> kg;
long long a[1005],a2[1005],ans[1005][1005];
long long find(long long x){
    if (a[x]==x) return x;
    else return a[x]=find(a[x]);
}
long long find2(long long x){
    if (a2[x]==x) return x;
    else return a2[x]=find2(a2[x]);
}
void link(long long x,long long y){
    ans[x][y]=1;
    ans[y][x]=1;
    return;
}
int construct(std::vector<std::vector<int>> p) {
    long long n=p.size();
    for (int i=0;i<n;i++) a[i]=i;
    for (int i=0;i<n;i++) a2[i]=i;
    for (int i=0;i<n;i++){
        for (int j=0;j<n;j++){
            if (p[i][j]==3) return 0;
            if (p[i][j]) {
                long long x=find(a[i]);
                long long y=find(a[j]);
                if (x!=y){
                    a[x]=y;
                }
            }
        }
    }
    for (int i=0;i<n;i++){
        for (int j=0;j<n;j++){
            if (p[i][j]==0) {
                long long x=find(a[i]);
                long long y=find(a[j]);
                if (x==y) return 0;
            }
        }
    }
    for (int i=0;i<n;i++){
        bg[find(i)].push_back(i);
    }
    for (int i=0;i<n;i++){
        for (int ii=0;ii<bg[i].size();ii++){
            for (int jj=0;jj<bg[i].size();jj++){
                long long u=bg[i][ii];
                long long v=bg[i][jj];
                long long x=find2(u);
                long long y=find2(v);
                if (p[u][v]==1){
                    a2[x]=y;
                }
            }
        }

        for (int ii=0;ii<bg[i].size();ii++){
            for (int jj=0;jj<bg[i].size();jj++){
                long long u=bg[i][ii];
                long long v=bg[i][jj];
                long long x=find2(u);
                long long y=find2(v);
                if (p[u][v]==2){
                    if (x==y) return 0;
                }
            }
        }

        for (int ii=0;ii<bg[i].size();ii++){
            sg[find2(bg[i][ii])].push_back(bg[i][ii]);
            //cout<<bg[i][ii]<<" "<<find2(bg[i][ii])<<endl;
        }
        kg.clear();
        for (int ii=0;ii<bg[i].size();ii++){
            long long node=bg[i][ii];
            if (sg[node].size()){
                for (int jj=0;jj<sg[node].size()-1;jj++){
                    link(sg[node][jj],sg[node][jj+1]);
                }
                kg.push_back(node);
            }
        }
        for (int i=0;i<kg.size();i++){
            if (kg.size()>1) link(kg[i],kg[(i+1)%kg.size()]);
        }

    }
    vector<vector<int> > anss;
    for (int i=0;i<n;i++){
        vector<int> tmp;
        for (int j=0;j<n;j++) tmp.push_back(ans[i][j]);
        anss.push_back(tmp);
    }
    build(anss);
    return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:52:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |         for (int ii=0;ii<bg[i].size();ii++){
      |                       ~~^~~~~~~~~~~~~
supertrees.cpp:53:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |             for (int jj=0;jj<bg[i].size();jj++){
      |                           ~~^~~~~~~~~~~~~
supertrees.cpp:64:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for (int ii=0;ii<bg[i].size();ii++){
      |                       ~~^~~~~~~~~~~~~
supertrees.cpp:65:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |             for (int jj=0;jj<bg[i].size();jj++){
      |                           ~~^~~~~~~~~~~~~
supertrees.cpp:76:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |         for (int ii=0;ii<bg[i].size();ii++){
      |                       ~~^~~~~~~~~~~~~
supertrees.cpp:81:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |         for (int ii=0;ii<bg[i].size();ii++){
      |                       ~~^~~~~~~~~~~~~
supertrees.cpp:84:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |                 for (int jj=0;jj<sg[node].size()-1;jj++){
      |                               ~~^~~~~~~~~~~~~~~~~~
supertrees.cpp:90:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |         for (int i=0;i<kg.size();i++){
      |                      ~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 8 ms 3416 KB Output is correct
7 Correct 165 ms 31100 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 8 ms 3416 KB Output is correct
7 Correct 165 ms 31100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 160 ms 24496 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 856 KB Output is correct
17 Correct 70 ms 10292 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 40 ms 10580 KB Output is correct
21 Correct 158 ms 31244 KB Output is correct
22 Correct 156 ms 31056 KB Output is correct
23 Correct 165 ms 31144 KB Output is correct
24 Correct 165 ms 30292 KB Output is correct
25 Correct 65 ms 10556 KB Output is correct
26 Correct 59 ms 10216 KB Output is correct
27 Correct 166 ms 31060 KB Output is correct
28 Correct 175 ms 30644 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 348 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 Correct 40 ms 10432 KB Output is correct
5 Correct 192 ms 31152 KB Output is correct
6 Correct 156 ms 31060 KB Output is correct
7 Correct 174 ms 31176 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 10560 KB Output is correct
10 Correct 157 ms 31276 KB Output is correct
11 Correct 156 ms 31536 KB Output is correct
12 Correct 162 ms 31164 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 41 ms 10532 KB Output is correct
17 Correct 159 ms 31316 KB Output is correct
18 Correct 168 ms 31316 KB Output is correct
19 Correct 157 ms 31312 KB Output is correct
20 Correct 156 ms 30380 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 8 ms 3416 KB Output is correct
7 Correct 165 ms 31100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 160 ms 24496 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 856 KB Output is correct
17 Correct 70 ms 10292 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 40 ms 10580 KB Output is correct
21 Correct 158 ms 31244 KB Output is correct
22 Correct 156 ms 31056 KB Output is correct
23 Correct 165 ms 31144 KB Output is correct
24 Correct 165 ms 30292 KB Output is correct
25 Correct 65 ms 10556 KB Output is correct
26 Correct 59 ms 10216 KB Output is correct
27 Correct 166 ms 31060 KB Output is correct
28 Correct 175 ms 30644 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 348 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 8 ms 3416 KB Output is correct
7 Correct 165 ms 31100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 160 ms 24496 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 856 KB Output is correct
17 Correct 70 ms 10292 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 40 ms 10580 KB Output is correct
21 Correct 158 ms 31244 KB Output is correct
22 Correct 156 ms 31056 KB Output is correct
23 Correct 165 ms 31144 KB Output is correct
24 Correct 165 ms 30292 KB Output is correct
25 Correct 65 ms 10556 KB Output is correct
26 Correct 59 ms 10216 KB Output is correct
27 Correct 166 ms 31060 KB Output is correct
28 Correct 175 ms 30644 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 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -