oj.uz

Submission #688319

# Submission time Handle Problem Language Result Execution time Memory
688319 2023-01-27T09:59:31 Z coding_snorlax Fountain Parks (IOI21_parks) C++17
45 / 100
 246 ms 39232 KB 
#include<bits/stdc++.h>
#include "parks.h"
using namespace std;
#define mp make_pair
#define pb push_back
vector<pair<int,int>> G;
vector<pair<int,int>> x_axis[200005];
vector<pair<int,int>> y_axis[200005];
vector<pair<int,int>> choose;
vector<int> u,v,a,b;
int Boss[200005];
int query(int node){
    if(Boss[node]==node) return node;
    return Boss[node]=query(Boss[node]);
}
int Union(int x,int y){
    if(query(x)==query(y)) return 0;
    Boss[query(x)]=query(y);
    return 1;
}
int construct_roads(vector<int> x,vector<int> y){
    for(int i=0;i<200005;i++){
        Boss[i]=i;
    }
    for(int i=0;i<(int)x.size();i++){
        x_axis[x[i]].pb(mp(y[i],i));
        y_axis[y[i]].pb(mp(x[i],i));
    }
    for(int i=0;i<200005;i++){
        sort(x_axis[i].begin(),x_axis[i].end());
        sort(y_axis[i].begin(),y_axis[i].end());
    }
    //construct graph
    for(int i=0;i<200005;i++){
        for(int j=0;j<(int)x_axis[i].size()-1;j++){
            //cout<<x_axis[i][j+1].first<<"\n";
            if(x_axis[i][j+1].first-x_axis[i][j].first==2){
                G.pb(mp(x_axis[i][j+1].second,x_axis[i][j].second));
            }
        }
        for(int j=0;j<(int)y_axis[i].size()-1;j++){
            if(y_axis[i][j+1].first-y_axis[i][j].first==2){
                G.pb(mp(y_axis[i][j+1].second,y_axis[i][j].second));
            }
        }
    }
    for(auto i:G){
        //cout<<i.first<<" "<<i.second<<"\n";
        if(Union(i.first,i.second)){
            choose.pb(mp(i.first,i.second));
        }
    }
    for(auto i:choose){
        if((x[i.first]+y[i.first])%4) swap(i.first,i.second);
        //cout<<x[i.first]<<" "<<y[i.first]<<" "<<x[i.second]<<" "<<y[i.second]<<"\n";
        if(x[i.second]-x[i.first]==2){
            u.pb(i.first);v.pb(i.second);a.pb(x[i.first]+1);b.pb(y[i.first]-1);
        }
        if(x[i.second]-x[i.first]==-2){
            u.pb(i.first);v.pb(i.second);a.pb(x[i.first]-1);b.pb(y[i.first]+1);
        }
        if(y[i.second]-y[i.first]==2){
            u.pb(i.first);v.pb(i.second);a.pb(x[i.first]+1);b.pb(y[i.first]+1);
        }
        if(y[i.second]-y[i.first]==-2){
            u.pb(i.first);v.pb(i.second);a.pb(x[i.first]-1);b.pb(y[i.first]-1);
        }
        //cout<<v.back()<<" \n";
    }
    //for(int i:v) cout<<i<<" ";
    if((int)choose.size()==(int)x.size()-1){
        build(u,v,a,b);
        return 1;
    }
    return 0;

}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct
17 Incorrect 9 ms 10452 KB Tree @(3, 3) appears more than once: for edges on positions 0 and 2
18 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct
17 Incorrect 9 ms 10452 KB Tree @(3, 3) appears more than once: for edges on positions 0 and 2
18 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct
17 Correct 7 ms 10452 KB Output is correct
18 Correct 10 ms 10472 KB Output is correct
19 Correct 8 ms 10452 KB Output is correct
20 Correct 246 ms 39176 KB Output is correct
21 Correct 181 ms 38008 KB Output is correct
22 Correct 214 ms 37876 KB Output is correct
23 Correct 144 ms 33636 KB Output is correct
24 Correct 68 ms 19244 KB Output is correct
25 Correct 79 ms 27752 KB Output is correct
26 Correct 81 ms 27712 KB Output is correct
27 Correct 137 ms 35264 KB Output is correct
28 Correct 146 ms 35272 KB Output is correct
29 Correct 142 ms 35224 KB Output is correct
30 Correct 134 ms 35220 KB Output is correct
31 Correct 7 ms 10452 KB Output is correct
32 Correct 17 ms 12420 KB Output is correct
33 Correct 69 ms 19544 KB Output is correct
34 Correct 227 ms 39232 KB Output is correct
35 Correct 12 ms 11504 KB Output is correct
36 Correct 26 ms 15360 KB Output is correct
37 Correct 53 ms 20284 KB Output is correct
38 Correct 86 ms 21796 KB Output is correct
39 Correct 86 ms 25684 KB Output is correct
40 Correct 112 ms 30988 KB Output is correct
41 Correct 126 ms 34696 KB Output is correct
42 Correct 159 ms 38108 KB Output is correct
43 Correct 9 ms 10452 KB Output is correct
44 Correct 8 ms 10468 KB Output is correct
45 Correct 12 ms 10452 KB Output is correct
46 Correct 10 ms 10472 KB Output is correct
47 Correct 8 ms 10460 KB Output is correct
48 Correct 8 ms 10452 KB Output is correct
49 Correct 8 ms 10452 KB Output is correct
50 Correct 8 ms 10424 KB Output is correct
51 Correct 9 ms 10452 KB Output is correct
52 Correct 9 ms 10452 KB Output is correct
53 Correct 8 ms 10452 KB Output is correct
54 Correct 8 ms 10612 KB Output is correct
55 Correct 9 ms 10708 KB Output is correct
56 Correct 82 ms 23724 KB Output is correct
57 Correct 121 ms 30524 KB Output is correct
58 Correct 121 ms 30520 KB Output is correct
59 Correct 7 ms 10364 KB Output is correct
60 Correct 8 ms 10452 KB Output is correct
61 Correct 7 ms 10468 KB Output is correct
62 Correct 171 ms 35888 KB Output is correct
63 Correct 157 ms 35960 KB Output is correct
64 Correct 181 ms 35856 KB Output is correct
65 Correct 13 ms 10776 KB Output is correct
66 Correct 11 ms 11100 KB Output is correct
67 Correct 78 ms 23152 KB Output is correct
68 Correct 136 ms 30616 KB Output is correct
69 Correct 167 ms 36344 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct
17 Correct 185 ms 36624 KB Output is correct
18 Correct 179 ms 37024 KB Output is correct
19 Correct 170 ms 37816 KB Output is correct
20 Correct 131 ms 34424 KB Output is correct
21 Correct 118 ms 33908 KB Output is correct
22 Correct 7 ms 10448 KB Output is correct
23 Correct 28 ms 14812 KB Output is correct
24 Correct 14 ms 12492 KB Output is correct
25 Correct 35 ms 17788 KB Output is correct
26 Correct 57 ms 21752 KB Output is correct
27 Correct 74 ms 24920 KB Output is correct
28 Correct 93 ms 28092 KB Output is correct
29 Correct 134 ms 32696 KB Output is correct
30 Correct 127 ms 35016 KB Output is correct
31 Correct 139 ms 38220 KB Output is correct
32 Correct 182 ms 36588 KB Output is correct
33 Correct 166 ms 35880 KB Output is correct
34 Correct 10 ms 10964 KB Output is correct
35 Correct 11 ms 11348 KB Output is correct
36 Correct 80 ms 23328 KB Output is correct
37 Correct 121 ms 30900 KB Output is correct
38 Correct 180 ms 36536 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10452 KB Output is correct
2 Correct 7 ms 10452 KB Output is correct
3 Correct 8 ms 10452 KB Output is correct
4 Correct 8 ms 10464 KB Output is correct
5 Correct 9 ms 10472 KB Output is correct
6 Correct 9 ms 10468 KB Output is correct
7 Correct 8 ms 10452 KB Output is correct
8 Correct 8 ms 10468 KB Output is correct
9 Correct 83 ms 24632 KB Output is correct
10 Correct 15 ms 11988 KB Output is correct
11 Correct 38 ms 17936 KB Output is correct
12 Correct 16 ms 12572 KB Output is correct
13 Correct 20 ms 15216 KB Output is correct
14 Correct 8 ms 10452 KB Output is correct
15 Correct 9 ms 10580 KB Output is correct
16 Correct 83 ms 24648 KB Output is correct
17 Incorrect 9 ms 10452 KB Tree @(3, 3) appears more than once: for edges on positions 0 and 2
18 Halted 0 ms 0 KB -