oj.uz

Submission #814172

# Submission time Handle Problem Language Result Execution time Memory
814172 2023-08-08T05:59:36 Z alvingogo Fountain Parks (IOI21_parks) C++17
15 / 100
 324 ms 30132 KB 
#include "parks.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

struct DSU{
    vector<int> bo,ss;
    void init(int x){
        bo.resize(x);
        ss.resize(x,1);
        iota(bo.begin(),bo.end(),0);
    }  
    int find(int x){
        return bo[x]==x?x:bo[x]=find(bo[x]);
    }
    int merge(int x,int y){
        x=find(x);
        y=find(y);
        if(x==y){
            return 0;
        }
        bo[x]=y;
        ss[y]+=ss[x];
        return 1;
    }
}dsu;
vector<int> au,av,aa,ab;
void ag(int a,int b,int c,int d){
    au.push_back(a);
    av.push_back(b);
    aa.push_back(c);
    ab.push_back(d);
}
int construct_roads(vector<int> x, vector<int> y) {
    if (x.size() == 1) {
	    build({}, {}, {}, {});
        return 1;
    }
    map<pair<int,int>,int> m;
    int n=x.size();
    for(int i=0;i<n;i++){
        m[{x[i],y[i]}]=i;
    }
    dsu.init(n);
    vector<int> up(n,-1),l(n,-1),r(n,-1);
    vector<pair<int,int> > lb;
    for(int p=0;p<n;p++){
        if(m.find({x[p],y[p]+2})!=m.end()){
            int a=m[{x[p],y[p]+2}];
            dsu.merge(a,p);
            if(x[p]==2){
                ag(a,p,1,y[p]+1);
            }
            else if(x[p]==6){
                ag(a,p,7,y[p]+1);
            }
            else{
                up[a]=p;
            }
        }
    }
    for(int p=0;p<n;p++){
        if(x[p]==4){
            lb.push_back({y[p],p});
            if(m.find({2,y[p]})!=m.end()){
                int a=m[{2,y[p]}];
                if(dsu.merge(a,p)){
                    l[p]=a;
                }
            }
            if(m.find({6,y[p]})!=m.end()){
                int a=m[{6,y[p]}];
                if(dsu.merge(a,p)){
                    r[p]=a;
                }
            }
        }
    }
    if(dsu.ss[dsu.find(0)]!=n){
        return 0;
    }
    sort(lb.begin(),lb.end());
    int flag=0;
    for(auto h:lb){
        int i=h.sc;
        if(flag){
            if(up[i]>=0){
                ag(up[i],i,3,h.fs-1);
            }
            flag=0;
            continue;
        }
        if(up[i]>=0){
            if(l[i]>=0 && r[i]>=0){
                ag(l[i],i,3,h.fs-1);
                ag(up[i],i,5,h.fs-1);
                ag(r[i],i,5,h.fs+1);
                flag=1;
            }
            else if(l[i]>=0){
                ag(l[i],i,3,h.fs-1);
                ag(up[i],i,5,h.fs-1);
            }
            else if(r[i]>=0){
                ag(r[i],i,5,h.fs-1);
                ag(up[i],i,3,h.fs-1);
            }
            else{
                ag(up[i],i,3,h.fs-1);
            }
        }
        else{
            if(l[i]>=0){
                ag(l[i],i,3,h.fs-1);
            }
            if(r[i]>=0){
                ag(r[i],i,5,h.fs-1);
            }
        }
    }
    build(au,av,aa,ab);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 323 ms 30132 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 640 KB Output is correct
27 Correct 3 ms 724 KB Output is correct
28 Correct 95 ms 12396 KB Output is correct
29 Correct 187 ms 18308 KB Output is correct
30 Correct 221 ms 24260 KB Output is correct
31 Correct 324 ms 30112 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 128 ms 15324 KB Output is correct
46 Correct 190 ms 22388 KB Output is correct
47 Correct 216 ms 22444 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 323 ms 30132 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 640 KB Output is correct
27 Correct 3 ms 724 KB Output is correct
28 Correct 95 ms 12396 KB Output is correct
29 Correct 187 ms 18308 KB Output is correct
30 Correct 221 ms 24260 KB Output is correct
31 Correct 324 ms 30112 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 128 ms 15324 KB Output is correct
46 Correct 190 ms 22388 KB Output is correct
47 Correct 216 ms 22444 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 323 ms 29964 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 2 ms 596 KB Output is correct
58 Correct 6 ms 1300 KB Output is correct
59 Correct 7 ms 1492 KB Output is correct
60 Correct 126 ms 15164 KB Output is correct
61 Correct 211 ms 20320 KB Output is correct
62 Correct 236 ms 24728 KB Output is correct
63 Correct 307 ms 29892 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 0 ms 212 KB Output is correct
67 Correct 291 ms 29472 KB Output is correct
68 Correct 272 ms 29364 KB Output is correct
69 Correct 247 ms 29220 KB Output is correct
70 Correct 3 ms 724 KB Output is correct
71 Correct 5 ms 1216 KB Output is correct
72 Incorrect 119 ms 15032 KB Given structure is not connected: There is no path between vertices 0 and 1
73 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct
17 Incorrect 0 ms 212 KB Solution announced impossible, but it is possible.
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct
17 Incorrect 200 ms 20696 KB Solution announced impossible, but it is possible.
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 106 ms 14852 KB Output is correct
10 Correct 7 ms 2004 KB Output is correct
11 Correct 40 ms 8300 KB Output is correct
12 Correct 10 ms 2772 KB Output is correct
13 Correct 22 ms 5468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 102 ms 14924 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 323 ms 30132 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 640 KB Output is correct
27 Correct 3 ms 724 KB Output is correct
28 Correct 95 ms 12396 KB Output is correct
29 Correct 187 ms 18308 KB Output is correct
30 Correct 221 ms 24260 KB Output is correct
31 Correct 324 ms 30112 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 128 ms 15324 KB Output is correct
46 Correct 190 ms 22388 KB Output is correct
47 Correct 216 ms 22444 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 323 ms 29964 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 2 ms 596 KB Output is correct
58 Correct 6 ms 1300 KB Output is correct
59 Correct 7 ms 1492 KB Output is correct
60 Correct 126 ms 15164 KB Output is correct
61 Correct 211 ms 20320 KB Output is correct
62 Correct 236 ms 24728 KB Output is correct
63 Correct 307 ms 29892 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 0 ms 212 KB Output is correct
67 Correct 291 ms 29472 KB Output is correct
68 Correct 272 ms 29364 KB Output is correct
69 Correct 247 ms 29220 KB Output is correct
70 Correct 3 ms 724 KB Output is correct
71 Correct 5 ms 1216 KB Output is correct
72 Incorrect 119 ms 15032 KB Given structure is not connected: There is no path between vertices 0 and 1
73 Halted 0 ms 0 KB -