oj.uz

Submission #1053077

# Submission time Handle Problem Language Result Execution time Memory
1053077 2024-08-11T08:31:51 Z tolbi Fountain Parks (IOI21_parks) C++17
30 / 100
 373 ms 37200 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
//void build(std::vector<int> u, std::vector<int> v, std::vector<int> a, std::vector<int> b);
struct DSU{
    vector<int> par;
    int tot;
    DSU(int n):tot(n){
        par.resize(n);
        iota(par.begin(), par.end(), 0);
    }
    int find(int node){
        if (par[node]==node) return node;
        return par[node]=find(par[node]);
    }
    bool merge(int a, int b){
        a=find(a);
        b=find(b);
        if (a!=b) tot--;
        else return false;
        par[a]=b;
        return true;
    }
};
int construct_roads(vector<int> x, vector<int> y) {
    bool subtask3 = true;
    int n = x.size();
    map<pair<int,int>,int> mp;
    for (int i = 0; i < n; i++){
        mp[{x[i],y[i]}]=i;
        if (x[i]<2 || x[i]>6) subtask3=false;
    }
    if (subtask3){
        DSU dsu(n);
        vector<int> u;
        vector<int> v;
        vector<int> xa;
        vector<int> ya;
        set<pair<int,int>> occupied;
        vector<int> lol;
        for (int i = 0; i < n; i++){
            if (mp.count({x[i],y[i]-2})){
                if (dsu.merge(i,mp[{x[i],y[i]-2}])){
                    u.push_back(mp[{x[i],y[i]-2}]);
                    v.push_back(i);
                    ya.push_back(y[i]-1);
                    if (x[i]==2) xa.push_back(x[i]-1);
                    else if (x[i]==6) xa.push_back(x[i]+1);
                    else {
                        xa.push_back(-1);
                        lol.push_back(x[i]);
                    }
                    if (xa.back()!=-1) occupied.insert({xa.back(),ya.back()});
                }
            }
        }
        for (int i = 0; i < n; ++i)
        {
            if (x[i]==6){
                if (mp.count({x[i]-2,y[i]})){
                    if (dsu.merge(i,mp[{x[i]-2,y[i]}])){
                        u.push_back(mp[{x[i]-2,y[i]}]);
                        v.push_back(i);
                        xa.push_back(x[i]-1);
                        ya.push_back(y[i]-1);
                        occupied.insert({xa.back(),ya.back()});
                    }
                }
            }
        }
        for (int i = 0; i < n; ++i)
        {
            if (x[i]!=6){
                if (mp.count({x[i]-2,y[i]})){
                    if (dsu.merge(i,mp[{x[i]-2,y[i]}])){
                        u.push_back(mp[{x[i]-2,y[i]}]);
                        v.push_back(i);
                        xa.push_back(x[i]-1);
                        if (occupied.find({x[i]+1,y[i]-1})==occupied.end()){
                            ya.push_back(y[i]-1);
                        }
                        else ya.push_back(y[i]+1);
                        occupied.insert({xa.back(),ya.back()});
                    }
                }
            }
        }
        reverse(lol.begin(), lol.end());
        bool boolean=true;
        for (int i = 0; i < xa.size(); i++){
            if (xa[i]==-1){
                if (occupied.find({lol.back()+1,ya[i]})==occupied.end()){
                    xa[i]=lol.back()+1;
                }
                else if (occupied.find({lol.back()-1,ya[i]})==occupied.end()){
                    xa[i]=lol.back()-1;
                }
                else {
                    boolean=false;
                    break;
                }
                lol.pop_back();
            }
        }
        if (dsu.tot==1 && boolean) {
            return build(u,v,xa,ya),1;
        }
        return 0;
    }
    else return cout<<"WA"<<endl,0;
}

Compilation message

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:90:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |         for (int i = 0; i < xa.size(); i++){
      |                         ~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 326 ms 31140 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 92 ms 12804 KB Output is correct
29 Correct 158 ms 18924 KB Output is correct
30 Correct 231 ms 25000 KB Output is correct
31 Correct 313 ms 31272 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 2 ms 600 KB Output is correct
45 Correct 142 ms 16564 KB Output is correct
46 Correct 232 ms 23668 KB Output is correct
47 Correct 249 ms 23620 KB Output is correct

Subtask #3
15.0 / 15.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 326 ms 31140 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 92 ms 12804 KB Output is correct
29 Correct 158 ms 18924 KB Output is correct
30 Correct 231 ms 25000 KB Output is correct
31 Correct 313 ms 31272 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 2 ms 600 KB Output is correct
45 Correct 142 ms 16564 KB Output is correct
46 Correct 232 ms 23668 KB Output is correct
47 Correct 249 ms 23620 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 373 ms 32936 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 2 ms 604 KB Output is correct
58 Correct 8 ms 1372 KB Output is correct
59 Correct 8 ms 1628 KB Output is correct
60 Correct 138 ms 16560 KB Output is correct
61 Correct 204 ms 22152 KB Output is correct
62 Correct 278 ms 26924 KB Output is correct
63 Correct 344 ms 32872 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 306 ms 35616 KB Output is correct
68 Correct 293 ms 35492 KB Output is correct
69 Correct 301 ms 35368 KB Output is correct
70 Correct 3 ms 860 KB Output is correct
71 Correct 6 ms 1372 KB Output is correct
72 Correct 129 ms 17184 KB Output is correct
73 Correct 227 ms 26952 KB Output is correct
74 Correct 328 ms 36008 KB Output is correct
75 Correct 331 ms 37200 KB Output is correct
76 Correct 318 ms 37112 KB Output is correct
77 Correct 4 ms 1028 KB Output is correct
78 Correct 7 ms 1724 KB Output is correct
79 Correct 135 ms 17960 KB Output is correct
80 Correct 248 ms 27060 KB Output is correct
81 Correct 360 ms 35992 KB Output is correct

Subtask #4
0 / 20.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct
17 Incorrect 1 ms 348 KB Possible tampering with the output
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct
17 Incorrect 84 ms 16080 KB Possible tampering with the output
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 131 ms 17960 KB Output is correct
10 Correct 8 ms 2396 KB Output is correct
11 Correct 45 ms 9776 KB Output is correct
12 Correct 12 ms 3288 KB Output is correct
13 Correct 30 ms 6688 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 17916 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 326 ms 31140 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 92 ms 12804 KB Output is correct
29 Correct 158 ms 18924 KB Output is correct
30 Correct 231 ms 25000 KB Output is correct
31 Correct 313 ms 31272 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 2 ms 600 KB Output is correct
45 Correct 142 ms 16564 KB Output is correct
46 Correct 232 ms 23668 KB Output is correct
47 Correct 249 ms 23620 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 373 ms 32936 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 2 ms 604 KB Output is correct
58 Correct 8 ms 1372 KB Output is correct
59 Correct 8 ms 1628 KB Output is correct
60 Correct 138 ms 16560 KB Output is correct
61 Correct 204 ms 22152 KB Output is correct
62 Correct 278 ms 26924 KB Output is correct
63 Correct 344 ms 32872 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 306 ms 35616 KB Output is correct
68 Correct 293 ms 35492 KB Output is correct
69 Correct 301 ms 35368 KB Output is correct
70 Correct 3 ms 860 KB Output is correct
71 Correct 6 ms 1372 KB Output is correct
72 Correct 129 ms 17184 KB Output is correct
73 Correct 227 ms 26952 KB Output is correct
74 Correct 328 ms 36008 KB Output is correct
75 Correct 331 ms 37200 KB Output is correct
76 Correct 318 ms 37112 KB Output is correct
77 Correct 4 ms 1028 KB Output is correct
78 Correct 7 ms 1724 KB Output is correct
79 Correct 135 ms 17960 KB Output is correct
80 Correct 248 ms 27060 KB Output is correct
81 Correct 360 ms 35992 KB Output is correct
82 Incorrect 1 ms 348 KB Possible tampering with the output
83 Halted 0 ms 0 KB -