oj.uz

Submission #814225

# Submission time Handle Problem Language Result Execution time Memory
814225 2023-08-08T06:27:15 Z alvingogo Fountain Parks (IOI21_parks) C++17
30 / 100
 479 ms 30608 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+1;
    }
    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}]-1;
            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]}]-1;
                if(dsu.merge(a,p)){
                    l[p]=a;
                }
            }
            if(m.find({6,y[p]})!=m.end()){
                int a=m[{6,y[p]}]-1;
                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;
    int lst=0;
    for(auto h:lb){
        int i=h.sc;
        if(lst!=h.fs-2){
            flag=0;
        }
        if(flag){
            if(up[i]>=0){
                ag(up[i],i,3,h.fs-1);
            }
            flag=0;
            lst=h.fs;
            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);
            }
        }
        lst=h.fs;
    }
    build(au,av,aa,ab);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 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 300 KB Output is correct
20 Correct 1 ms 224 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 372 ms 30448 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 3 ms 788 KB Output is correct
28 Correct 107 ms 12756 KB Output is correct
29 Correct 173 ms 18672 KB Output is correct
30 Correct 257 ms 24612 KB Output is correct
31 Correct 338 ms 30560 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 268 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 137 ms 15608 KB Output is correct
46 Correct 253 ms 22772 KB Output is correct
47 Correct 239 ms 22760 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 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 300 KB Output is correct
20 Correct 1 ms 224 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 372 ms 30448 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 3 ms 788 KB Output is correct
28 Correct 107 ms 12756 KB Output is correct
29 Correct 173 ms 18672 KB Output is correct
30 Correct 257 ms 24612 KB Output is correct
31 Correct 338 ms 30560 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 268 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 137 ms 15608 KB Output is correct
46 Correct 253 ms 22772 KB Output is correct
47 Correct 239 ms 22760 KB Output is correct
48 Correct 1 ms 296 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 1 ms 300 KB Output is correct
53 Correct 1 ms 304 KB Output is correct
54 Correct 1 ms 296 KB Output is correct
55 Correct 479 ms 30312 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 2 ms 596 KB Output is correct
58 Correct 7 ms 1336 KB Output is correct
59 Correct 8 ms 1484 KB Output is correct
60 Correct 160 ms 15540 KB Output is correct
61 Correct 213 ms 20664 KB Output is correct
62 Correct 276 ms 25116 KB Output is correct
63 Correct 349 ms 30344 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 281 ms 29808 KB Output is correct
68 Correct 282 ms 29804 KB Output is correct
69 Correct 279 ms 29612 KB Output is correct
70 Correct 3 ms 724 KB Output is correct
71 Correct 5 ms 1208 KB Output is correct
72 Correct 123 ms 15368 KB Output is correct
73 Correct 245 ms 22928 KB Output is correct
74 Correct 389 ms 30396 KB Output is correct
75 Correct 424 ms 30608 KB Output is correct
76 Correct 321 ms 29976 KB Output is correct
77 Correct 3 ms 852 KB Output is correct
78 Correct 6 ms 1364 KB Output is correct
79 Correct 145 ms 15544 KB Output is correct
80 Correct 258 ms 22996 KB Output is correct
81 Correct 328 ms 30340 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 KB Output is correct
17 Incorrect 1 ms 296 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 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 KB Output is correct
17 Incorrect 211 ms 21036 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 1 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 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 105 ms 15124 KB Output is correct
10 Correct 7 ms 1988 KB Output is correct
11 Correct 39 ms 8512 KB Output is correct
12 Correct 13 ms 2772 KB Output is correct
13 Correct 22 ms 5756 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 108 ms 15108 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 300 KB Output is correct
20 Correct 1 ms 224 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 372 ms 30448 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 3 ms 788 KB Output is correct
28 Correct 107 ms 12756 KB Output is correct
29 Correct 173 ms 18672 KB Output is correct
30 Correct 257 ms 24612 KB Output is correct
31 Correct 338 ms 30560 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 268 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 137 ms 15608 KB Output is correct
46 Correct 253 ms 22772 KB Output is correct
47 Correct 239 ms 22760 KB Output is correct
48 Correct 1 ms 296 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 1 ms 300 KB Output is correct
53 Correct 1 ms 304 KB Output is correct
54 Correct 1 ms 296 KB Output is correct
55 Correct 479 ms 30312 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 2 ms 596 KB Output is correct
58 Correct 7 ms 1336 KB Output is correct
59 Correct 8 ms 1484 KB Output is correct
60 Correct 160 ms 15540 KB Output is correct
61 Correct 213 ms 20664 KB Output is correct
62 Correct 276 ms 25116 KB Output is correct
63 Correct 349 ms 30344 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 281 ms 29808 KB Output is correct
68 Correct 282 ms 29804 KB Output is correct
69 Correct 279 ms 29612 KB Output is correct
70 Correct 3 ms 724 KB Output is correct
71 Correct 5 ms 1208 KB Output is correct
72 Correct 123 ms 15368 KB Output is correct
73 Correct 245 ms 22928 KB Output is correct
74 Correct 389 ms 30396 KB Output is correct
75 Correct 424 ms 30608 KB Output is correct
76 Correct 321 ms 29976 KB Output is correct
77 Correct 3 ms 852 KB Output is correct
78 Correct 6 ms 1364 KB Output is correct
79 Correct 145 ms 15544 KB Output is correct
80 Correct 258 ms 22996 KB Output is correct
81 Correct 328 ms 30340 KB Output is correct
82 Incorrect 1 ms 296 KB Solution announced impossible, but it is possible.
83 Halted 0 ms 0 KB -