oj.uz

Submission #1051904

# Submission time Handle Problem Language Result Execution time Memory
1051904 2024-08-10T10:29:49 Z MarwenElarbi Fountain Parks (IOI21_parks) C++17
30 / 100
 375 ms 48692 KB 
#include <bits/stdc++.h>
using namespace std;
#include "parks.h"
#define pb push_back
#define fi first
#define se second
const int nax=2e5+5;
set<pair<int,int>> mp;
map<pair<int,int>,int> cor;
set<pair<int,int>> vis;
int parent[nax];
bool check(pair<int,int> a){
    if(!mp.count({a.fi-2,a.se})&&!mp.count({a.fi+2,a.se})&&!mp.count({a.fi,a.se-2})&&!mp.count({a.fi,a.se+2})) return false;
    return true; 
}
int find(int x){
    if(x==parent[x]) return x;
    return parent[x]=find(parent[x]);
}
bool sameset(int x,int y){
    return find(x)==find(y);
}
void joinset(int x,int y) {
    x=find(x);
    y=find(y);
    parent[x]=y;
}
int construct_roads(std::vector<int> x, std::vector<int> y) {
    if (x.size() == 1) {
	build({}, {}, {}, {});
        return 1;
    }
    std::vector<int> u, v, a, b;
    int n=y.size();
    for (int i = 0; i < n; ++i) parent[i]=i;
    for (int i = 0; i < n; ++i)
    {
        mp.insert({x[i],y[i]});
        cor[{x[i],y[i]}]=i;
    }
    bool test=true;
    for(auto i:mp){
        if(!check(i)){
            test=false;
            break;
        }
        if(mp.count({i.fi+2,i.se})){
            if(sameset(cor[i],cor[{i.fi+2,i.se}])) continue;
            pair<int,int> cur={i.fi+1,i.se-1};
            if(vis.count(cur)) cur.se+=2;
            if(vis.count(cur)) continue;
            vis.insert(cur);
            joinset(cor[i],cor[{i.fi+2,i.se}]);
            a.pb(cur.fi);
            b.pb(cur.se);
            u.pb(cor[i]);
            v.pb(cor[{i.fi+2,i.se}]);
        }
        if(mp.count({i.fi,i.se+2})){
            if(sameset(cor[i],cor[{i.fi,i.se+2}])) continue;
            pair<int,int> cur={i.fi-1,i.se+1};
            if(vis.count(cur)) cur.fi+=2;
            if(vis.count(cur)) continue;
            joinset(cor[i],cor[{i.fi,i.se+2}]);
            vis.insert(cur);
            a.pb(cur.fi);
            b.pb(cur.se);
            u.pb(cor[i]);
            v.pb(cor[{i.fi,i.se+2}]);
        }
    }
    if(!test) return 0;
    if((int)u.size()!=n-1) return 0;
    build(u, v, a, b);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 355 ms 48552 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 3 ms 860 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 114 ms 19776 KB Output is correct
29 Correct 211 ms 29512 KB Output is correct
30 Correct 267 ms 39076 KB Output is correct
31 Correct 353 ms 48692 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 0 ms 348 KB Output is correct
36 Correct 0 ms 448 KB Output is correct
37 Correct 0 ms 448 KB Output is correct
38 Correct 1 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 2 ms 604 KB Output is correct
44 Correct 3 ms 1008 KB Output is correct
45 Correct 141 ms 23376 KB Output is correct
46 Correct 211 ms 33540 KB Output is correct
47 Correct 206 ms 33444 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 355 ms 48552 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 3 ms 860 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 114 ms 19776 KB Output is correct
29 Correct 211 ms 29512 KB Output is correct
30 Correct 267 ms 39076 KB Output is correct
31 Correct 353 ms 48692 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 0 ms 348 KB Output is correct
36 Correct 0 ms 448 KB Output is correct
37 Correct 0 ms 448 KB Output is correct
38 Correct 1 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 2 ms 604 KB Output is correct
44 Correct 3 ms 1008 KB Output is correct
45 Correct 141 ms 23376 KB Output is correct
46 Correct 211 ms 33540 KB Output is correct
47 Correct 206 ms 33444 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 0 ms 344 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 0 ms 444 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 344 KB Output is correct
55 Correct 356 ms 47852 KB Output is correct
56 Correct 1 ms 508 KB Output is correct
57 Correct 3 ms 856 KB Output is correct
58 Correct 9 ms 1880 KB Output is correct
59 Correct 12 ms 2368 KB Output is correct
60 Correct 148 ms 24004 KB Output is correct
61 Correct 217 ms 32508 KB Output is correct
62 Correct 264 ms 39588 KB Output is correct
63 Correct 354 ms 47780 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 329 ms 45992 KB Output is correct
68 Correct 314 ms 47268 KB Output is correct
69 Correct 325 ms 46504 KB Output is correct
70 Correct 4 ms 1112 KB Output is correct
71 Correct 9 ms 1884 KB Output is correct
72 Correct 144 ms 23360 KB Output is correct
73 Correct 236 ms 34476 KB Output is correct
74 Correct 341 ms 46024 KB Output is correct
75 Correct 358 ms 47528 KB Output is correct
76 Correct 324 ms 47396 KB Output is correct
77 Correct 5 ms 1372 KB Output is correct
78 Correct 10 ms 2140 KB Output is correct
79 Correct 146 ms 23560 KB Output is correct
80 Correct 238 ms 34724 KB Output is correct
81 Correct 338 ms 46060 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 341 ms 46384 KB Output is correct
21 Correct 344 ms 46244 KB Output is correct
22 Correct 337 ms 46180 KB Output is correct
23 Correct 271 ms 39596 KB Output is correct
24 Correct 145 ms 27216 KB Output is correct
25 Correct 337 ms 39796 KB Output is correct
26 Correct 300 ms 39620 KB Output is correct
27 Correct 375 ms 45992 KB Output is correct
28 Correct 318 ms 45924 KB Output is correct
29 Correct 334 ms 46056 KB Output is correct
30 Correct 332 ms 45104 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Incorrect 15 ms 3112 KB Solution announced impossible, but it is possible.
33 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct
17 Correct 312 ms 45736 KB Output is correct
18 Correct 320 ms 45224 KB Output is correct
19 Correct 344 ms 44848 KB Output is correct
20 Correct 309 ms 44196 KB Output is correct
21 Correct 271 ms 39592 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Incorrect 34 ms 6296 KB Solution announced impossible, but it is possible.
24 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 444 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 444 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 141 ms 23284 KB Output is correct
10 Correct 10 ms 2908 KB Output is correct
11 Correct 74 ms 12744 KB Output is correct
12 Correct 15 ms 4188 KB Output is correct
13 Correct 47 ms 9184 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 138 ms 23404 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 355 ms 48552 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 3 ms 860 KB Output is correct
27 Correct 4 ms 1116 KB Output is correct
28 Correct 114 ms 19776 KB Output is correct
29 Correct 211 ms 29512 KB Output is correct
30 Correct 267 ms 39076 KB Output is correct
31 Correct 353 ms 48692 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 0 ms 348 KB Output is correct
36 Correct 0 ms 448 KB Output is correct
37 Correct 0 ms 448 KB Output is correct
38 Correct 1 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 2 ms 604 KB Output is correct
44 Correct 3 ms 1008 KB Output is correct
45 Correct 141 ms 23376 KB Output is correct
46 Correct 211 ms 33540 KB Output is correct
47 Correct 206 ms 33444 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 0 ms 344 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 0 ms 444 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 344 KB Output is correct
55 Correct 356 ms 47852 KB Output is correct
56 Correct 1 ms 508 KB Output is correct
57 Correct 3 ms 856 KB Output is correct
58 Correct 9 ms 1880 KB Output is correct
59 Correct 12 ms 2368 KB Output is correct
60 Correct 148 ms 24004 KB Output is correct
61 Correct 217 ms 32508 KB Output is correct
62 Correct 264 ms 39588 KB Output is correct
63 Correct 354 ms 47780 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 329 ms 45992 KB Output is correct
68 Correct 314 ms 47268 KB Output is correct
69 Correct 325 ms 46504 KB Output is correct
70 Correct 4 ms 1112 KB Output is correct
71 Correct 9 ms 1884 KB Output is correct
72 Correct 144 ms 23360 KB Output is correct
73 Correct 236 ms 34476 KB Output is correct
74 Correct 341 ms 46024 KB Output is correct
75 Correct 358 ms 47528 KB Output is correct
76 Correct 324 ms 47396 KB Output is correct
77 Correct 5 ms 1372 KB Output is correct
78 Correct 10 ms 2140 KB Output is correct
79 Correct 146 ms 23560 KB Output is correct
80 Correct 238 ms 34724 KB Output is correct
81 Correct 338 ms 46060 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 341 ms 46384 KB Output is correct
86 Correct 344 ms 46244 KB Output is correct
87 Correct 337 ms 46180 KB Output is correct
88 Correct 271 ms 39596 KB Output is correct
89 Correct 145 ms 27216 KB Output is correct
90 Correct 337 ms 39796 KB Output is correct
91 Correct 300 ms 39620 KB Output is correct
92 Correct 375 ms 45992 KB Output is correct
93 Correct 318 ms 45924 KB Output is correct
94 Correct 334 ms 46056 KB Output is correct
95 Correct 332 ms 45104 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Incorrect 15 ms 3112 KB Solution announced impossible, but it is possible.
98 Halted 0 ms 0 KB -