oj.uz

Submission #815133

# Submission time Handle Problem Language Result Execution time Memory
815133 2023-08-08T12:36:30 Z blackyuki Fountain Parks (IOI21_parks) C++17
55 / 100
 403 ms 40628 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<bool> vb;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define all(a) a.begin(),a.end()
#define fi first
#define se second
#define pb emplace_back
#define lb(v,k) (lower_bound(all(v),k)-v.begin())
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> bool chmax(T&a,T b){if(a<b){a=b;return true;}return false;}
template<class T> void out(T a){cout<<a<<'\n';}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';}
const ll inf=1001001001001001001;
struct UF{
	ll n;
	vi par,sz;
	UF(ll n_):n(n_),par(n,-1),sz(n,1){}
	void merge(ll a,ll b){
		a=root(a);b=root(b);
		if(a==b)return;
		if(sz[a]>sz[b])swap(a,b);
		par[a]=b;
		sz[b]+=sz[a];
	}
	ll root(ll i){
		if(par[i]==-1)return i;
		par[i]=root(par[i]);
		return par[i];
	}
	bool same(ll a,ll b){
		return root(a)==root(b);
	}
    ll getsz(ll i){
        return sz[root(i)];
    }
};
int construct_roads(std::vector<int> x, std::vector<int> y) {
    ll n=x.size();
    UF uf(n);
    vector<PP> v(n);
    rep(i,n)v[i]=PP(x[i],y[i],i);
    sort(all(v));
    vi dx={2,0},dy={0,2};
    set<P> S;
    vector<int> U, V, A, B;
    rep(i,n)rep(j,2){
        P a(x[i],y[i]),b(x[i]+dx[j],y[i]+dy[j]);
        ll l=lb(v,PP(b.fi,b.se,-1));
        if(l==n)continue;
        l=get<2>(v[l]);
        if(P(x[l],y[l])!=b)continue;
        P c((a.fi+b.fi)/2,(a.se+b.se)/2);
        if(a.fi==b.fi){
            if((a.fi+a.se)%4==0)c.fi--;
            else c.fi++;
        }
        else{
            if((a.fi+a.se)%4==0)c.se++;
            else c.se--;
        }
        if(S.insert(c).se){
            uf.merge(i,l);
            U.pb(i);
            V.pb(l);
            A.pb(c.fi);
            B.pb(c.se);
        }
    }
    if(uf.getsz(0)<n)return 0;
    build(U,V,A,B);
    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 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 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 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 333 ms 33992 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 724 KB Output is correct
27 Correct 3 ms 880 KB Output is correct
28 Correct 94 ms 14128 KB Output is correct
29 Correct 183 ms 20856 KB Output is correct
30 Correct 297 ms 27504 KB Output is correct
31 Correct 380 ms 34048 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 0 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 0 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 0 ms 300 KB Output is correct
43 Correct 2 ms 564 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 132 ms 17536 KB Output is correct
46 Correct 259 ms 24932 KB Output is correct
47 Correct 181 ms 25020 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 333 ms 33992 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 724 KB Output is correct
27 Correct 3 ms 880 KB Output is correct
28 Correct 94 ms 14128 KB Output is correct
29 Correct 183 ms 20856 KB Output is correct
30 Correct 297 ms 27504 KB Output is correct
31 Correct 380 ms 34048 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 0 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 0 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 0 ms 300 KB Output is correct
43 Correct 2 ms 564 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 132 ms 17536 KB Output is correct
46 Correct 259 ms 24932 KB Output is correct
47 Correct 181 ms 25020 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 0 ms 292 KB Output is correct
51 Correct 1 ms 296 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 288 KB Output is correct
55 Incorrect 352 ms 28460 KB Solution announced impossible, but it is possible.
56 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 268 ms 34464 KB Output is correct
21 Correct 323 ms 34504 KB Output is correct
22 Correct 277 ms 34464 KB Output is correct
23 Correct 273 ms 29500 KB Output is correct
24 Correct 97 ms 12620 KB Output is correct
25 Correct 284 ms 28256 KB Output is correct
26 Correct 248 ms 28196 KB Output is correct
27 Correct 292 ms 34492 KB Output is correct
28 Correct 306 ms 34392 KB Output is correct
29 Correct 320 ms 34420 KB Output is correct
30 Correct 319 ms 34432 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 15 ms 2764 KB Output is correct
33 Correct 46 ms 6992 KB Output is correct
34 Correct 314 ms 34548 KB Output is correct
35 Correct 8 ms 1748 KB Output is correct
36 Correct 46 ms 7480 KB Output is correct
37 Correct 97 ms 14860 KB Output is correct
38 Correct 94 ms 14588 KB Output is correct
39 Correct 136 ms 19616 KB Output is correct
40 Correct 206 ms 24548 KB Output is correct
41 Correct 262 ms 29580 KB Output is correct
42 Correct 312 ms 34464 KB Output is correct
43 Correct 0 ms 304 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 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 0 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 300 KB Output is correct
54 Correct 2 ms 468 KB Output is correct
55 Correct 2 ms 724 KB Output is correct
56 Correct 124 ms 17876 KB Output is correct
57 Correct 187 ms 25384 KB Output is correct
58 Correct 200 ms 25376 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 292 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 282 ms 34396 KB Output is correct
63 Correct 278 ms 34432 KB Output is correct
64 Correct 296 ms 34412 KB Output is correct
65 Correct 3 ms 852 KB Output is correct
66 Correct 5 ms 1336 KB Output is correct
67 Correct 116 ms 17452 KB Output is correct
68 Correct 217 ms 26148 KB Output is correct
69 Correct 307 ms 34372 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 KB Output is correct
17 Correct 298 ms 34600 KB Output is correct
18 Correct 317 ms 34224 KB Output is correct
19 Correct 319 ms 34128 KB Output is correct
20 Correct 403 ms 40628 KB Output is correct
21 Correct 277 ms 32204 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 35 ms 6176 KB Output is correct
24 Correct 17 ms 3500 KB Output is correct
25 Correct 67 ms 11540 KB Output is correct
26 Correct 135 ms 18976 KB Output is correct
27 Correct 155 ms 19788 KB Output is correct
28 Correct 198 ms 24596 KB Output is correct
29 Correct 264 ms 29276 KB Output is correct
30 Correct 289 ms 33776 KB Output is correct
31 Correct 377 ms 38488 KB Output is correct
32 Correct 355 ms 38568 KB Output is correct
33 Correct 311 ms 34168 KB Output is correct
34 Correct 4 ms 980 KB Output is correct
35 Correct 6 ms 1580 KB Output is correct
36 Correct 134 ms 18552 KB Output is correct
37 Correct 219 ms 27684 KB Output is correct
38 Correct 322 ms 36512 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 109 ms 17580 KB Output is correct
10 Correct 8 ms 2004 KB Output is correct
11 Correct 36 ms 9584 KB Output is correct
12 Correct 13 ms 2832 KB Output is correct
13 Correct 19 ms 6464 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 588 KB Output is correct
16 Correct 110 ms 17524 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 333 ms 33992 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 724 KB Output is correct
27 Correct 3 ms 880 KB Output is correct
28 Correct 94 ms 14128 KB Output is correct
29 Correct 183 ms 20856 KB Output is correct
30 Correct 297 ms 27504 KB Output is correct
31 Correct 380 ms 34048 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 0 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 0 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 0 ms 300 KB Output is correct
43 Correct 2 ms 564 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 132 ms 17536 KB Output is correct
46 Correct 259 ms 24932 KB Output is correct
47 Correct 181 ms 25020 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 0 ms 292 KB Output is correct
51 Correct 1 ms 296 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 288 KB Output is correct
55 Incorrect 352 ms 28460 KB Solution announced impossible, but it is possible.
56 Halted 0 ms 0 KB -