oj.uz

Submission #966886

# Submission time Handle Problem Language Result Execution time Memory
966886 2024-04-20T14:29:51 Z penguin133 Swapping Cities (APIO20_swap) C++17
100 / 100
 241 ms 46272 KB 
#include <bits/stdc++.h>
using namespace std;
#include "swap.h"
//#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
vector <int> waiting[200005];
int par[200005], val[200005], deg[200005], good[200005], up[20][200005], dep[200005];
int cnt = 1;
pi adj[200005];
int getr(int x){return par[x] == x ? x : par[x] = getr(par[x]);}
void merge(int a, int b, int c){
	a = getr(a); b = getr(b);
	if(a == b)return;
	par[a] = par[b] = up[0][a] = up[0][b] = par[cnt];
	val[cnt] = c;
	adj[cnt] = {a, b};
	//good[cnt] = 1;
	cnt++;
}
 
int par2[200005];
int g2(int x){return par2[x] == x ? x : par2[x] = g2(par2[x]);}
void m2(int a, int b){par2[g2(b)] = g2(a);}
 
void dfs(int x, int d){
	//cout << x << '\n';
	dep[x] = d;
	if(adj[x].fi == adj[x].se)return;
	dfs(adj[x].fi, d + 1);
	dfs(adj[x].se, d + 1);
}
 
int lca(int u, int v){
	if(dep[u] > dep[v])swap(u, v);
	int df = dep[v] -dep[u];
	for(int i = 0; i <= 19; i++)if(df >> i & 1)v = up[i][v];
	if(u ==v )return u;
	for(int i = 19; i >=0 ; i--)if(up[i][u] != up[i][v])u = up[i][u], v = up[i][v];
	return up[0][u];
}
 
void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	vector <pii> bb;
	cnt = N;
	for(int i = 0; i < 2 * N; i++)par[i] = par2[i] = i;
	for(int i = 0; i < M; i++)bb.push_back({W[i], {U[i], V[i]}});
	sort(bb.begin(), bb.end());
	for(auto i : bb){
		int a = i.se.fi, b = i.se.se, w = i.fi;
		if(g2(a) == g2(b)){
			good[getr(a)] = 1;
			good[getr(b)] = 1;
			queue <int> q;
			q.push(a);
			q.push(b);
			merge(a, b, w);
			while(!q.empty()){
				int x = q.front(); q.pop();
				vector <int> aa = waiting[x];
				waiting[x].clear();
				for(auto j : aa){
				    if(getr(j) != getr(x)){
						merge(x, j, w);
    			        q.push(j);
    			    }
				}
			}
		}
		else{
			m2(a, b);
			//if(getr(a) != a || getr(b) != b)merge(a, b, w);
			if(getr(a) != a || getr(b) != b){
				queue <int> q;
					q.push(a);
					q.push(b);
					merge(a, b, w);
					while(!q.empty()){
						int x = q.front(); q.pop();
						vector <int> aa = waiting[x];
						waiting[x].clear();
						for(auto j : aa){
						    if(getr(j) != getr(x)){
						        merge(x, j, w);
						        q.push(j);
						    }
						}
					}
			}
			else{
				deg[a]++; deg[b]++;
				if(max(deg[a], deg[b]) >= 3){
					good[getr(a)] = good[getr(b)] = 1;
					
					queue <int> q;
					q.push(a);
					q.push(b);
					merge(a, b, w);
					while(!q.empty()){
						int x = q.front(); q.pop();
						vector <int> aa = waiting[x];
						waiting[x].clear();
						for(auto j : aa){
						    if(getr(j) != getr(x)){
						        merge(x, j, w);
						        q.push(j);
						    }
						}
					}
				}
				else waiting[a].push_back(b), waiting[b].push_back(a);
			}
		}
	}
	for(int i = cnt - 1; i >= N; i--)if(!dep[i])dfs(i, 1);
	for(int i = 1; i <= 19; i++)for(int j = 0; j < 2 * N; j++)up[i][j] = up[i - 1][up[i - 1][j]];
}
 
int getMinimumFuelCapacity(int X, int Y) {
  if(getr(X) != getr(Y))return -1;
  //cout << lca(X, Y) << ' ';
  return val[lca(X, Y)];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22620 KB Output is correct
2 Correct 4 ms 22620 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 5 ms 22620 KB Output is correct
5 Correct 4 ms 22880 KB Output is correct
6 Correct 4 ms 22872 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 48 ms 32200 KB Output is correct
10 Correct 59 ms 33768 KB Output is correct
11 Correct 50 ms 33476 KB Output is correct
12 Correct 55 ms 33888 KB Output is correct
13 Correct 50 ms 34400 KB Output is correct
14 Correct 45 ms 32456 KB Output is correct
15 Correct 89 ms 37576 KB Output is correct
16 Correct 88 ms 37320 KB Output is correct
17 Correct 91 ms 37980 KB Output is correct
18 Correct 89 ms 38296 KB Output is correct
19 Correct 69 ms 33368 KB Output is correct
20 Correct 211 ms 40764 KB Output is correct
21 Correct 181 ms 40828 KB Output is correct
22 Correct 205 ms 41376 KB Output is correct
23 Correct 190 ms 41360 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22620 KB Output is correct
2 Correct 4 ms 22620 KB Output is correct
3 Correct 206 ms 37564 KB Output is correct
4 Correct 171 ms 37380 KB Output is correct
5 Correct 166 ms 37612 KB Output is correct
6 Correct 178 ms 37208 KB Output is correct
7 Correct 174 ms 37568 KB Output is correct
8 Correct 240 ms 37408 KB Output is correct
9 Correct 168 ms 37312 KB Output is correct
10 Correct 160 ms 37348 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22620 KB Output is correct
2 Correct 4 ms 22620 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 5 ms 22620 KB Output is correct
5 Correct 4 ms 22880 KB Output is correct
6 Correct 4 ms 22872 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 26716 KB Output is correct
10 Correct 5 ms 26972 KB Output is correct
11 Correct 5 ms 27224 KB Output is correct
12 Correct 5 ms 26972 KB Output is correct
13 Correct 5 ms 26716 KB Output is correct
14 Correct 5 ms 26868 KB Output is correct
15 Correct 5 ms 26972 KB Output is correct
16 Correct 5 ms 26972 KB Output is correct
17 Correct 5 ms 26716 KB Output is correct
18 Correct 5 ms 26972 KB Output is correct
19 Correct 5 ms 26716 KB Output is correct
20 Correct 5 ms 26972 KB Output is correct
21 Correct 5 ms 26972 KB Output is correct
22 Correct 5 ms 26972 KB Output is correct
23 Correct 6 ms 26716 KB Output is correct
24 Correct 5 ms 26972 KB Output is correct
25 Correct 5 ms 26968 KB Output is correct
26 Correct 5 ms 27016 KB Output is correct
27 Correct 5 ms 26864 KB Output is correct
28 Correct 5 ms 26972 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 26716 KB Output is correct
2 Correct 5 ms 22620 KB Output is correct
3 Correct 4 ms 22620 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 5 ms 22620 KB Output is correct
6 Correct 4 ms 22880 KB Output is correct
7 Correct 4 ms 22872 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 48 ms 32200 KB Output is correct
11 Correct 59 ms 33768 KB Output is correct
12 Correct 50 ms 33476 KB Output is correct
13 Correct 55 ms 33888 KB Output is correct
14 Correct 50 ms 34400 KB Output is correct
15 Correct 5 ms 26972 KB Output is correct
16 Correct 5 ms 27224 KB Output is correct
17 Correct 5 ms 26972 KB Output is correct
18 Correct 5 ms 26716 KB Output is correct
19 Correct 5 ms 26868 KB Output is correct
20 Correct 5 ms 26972 KB Output is correct
21 Correct 5 ms 26972 KB Output is correct
22 Correct 5 ms 26716 KB Output is correct
23 Correct 5 ms 26972 KB Output is correct
24 Correct 5 ms 26716 KB Output is correct
25 Correct 5 ms 26972 KB Output is correct
26 Correct 5 ms 26972 KB Output is correct
27 Correct 5 ms 26972 KB Output is correct
28 Correct 6 ms 26716 KB Output is correct
29 Correct 5 ms 26972 KB Output is correct
30 Correct 5 ms 26968 KB Output is correct
31 Correct 5 ms 27016 KB Output is correct
32 Correct 5 ms 26864 KB Output is correct
33 Correct 5 ms 26972 KB Output is correct
34 Correct 12 ms 27928 KB Output is correct
35 Correct 62 ms 36452 KB Output is correct
36 Correct 65 ms 35784 KB Output is correct
37 Correct 70 ms 35524 KB Output is correct
38 Correct 58 ms 35356 KB Output is correct
39 Correct 64 ms 35012 KB Output is correct
40 Correct 62 ms 34244 KB Output is correct
41 Correct 59 ms 36576 KB Output is correct
42 Correct 64 ms 36684 KB Output is correct
43 Correct 46 ms 32964 KB Output is correct
44 Correct 60 ms 35016 KB Output is correct
45 Correct 80 ms 37308 KB Output is correct
46 Correct 59 ms 36036 KB Output is correct
47 Correct 71 ms 36204 KB Output is correct
48 Correct 65 ms 35784 KB Output is correct
49 Correct 60 ms 36104 KB Output is correct
50 Correct 48 ms 33584 KB Output is correct
51 Correct 69 ms 35780 KB Output is correct
52 Correct 96 ms 40700 KB Output is correct
53 Correct 102 ms 40244 KB Output is correct
54 Correct 107 ms 42688 KB Output is correct
55 Correct 48 ms 32968 KB Output is correct
56 Correct 94 ms 39648 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22620 KB Output is correct
2 Correct 4 ms 22620 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 5 ms 22620 KB Output is correct
5 Correct 4 ms 22880 KB Output is correct
6 Correct 4 ms 22872 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 48 ms 32200 KB Output is correct
10 Correct 59 ms 33768 KB Output is correct
11 Correct 50 ms 33476 KB Output is correct
12 Correct 55 ms 33888 KB Output is correct
13 Correct 50 ms 34400 KB Output is correct
14 Correct 45 ms 32456 KB Output is correct
15 Correct 89 ms 37576 KB Output is correct
16 Correct 88 ms 37320 KB Output is correct
17 Correct 91 ms 37980 KB Output is correct
18 Correct 89 ms 38296 KB Output is correct
19 Correct 206 ms 37564 KB Output is correct
20 Correct 171 ms 37380 KB Output is correct
21 Correct 166 ms 37612 KB Output is correct
22 Correct 178 ms 37208 KB Output is correct
23 Correct 174 ms 37568 KB Output is correct
24 Correct 240 ms 37408 KB Output is correct
25 Correct 168 ms 37312 KB Output is correct
26 Correct 160 ms 37348 KB Output is correct
27 Correct 5 ms 26972 KB Output is correct
28 Correct 5 ms 27224 KB Output is correct
29 Correct 5 ms 26972 KB Output is correct
30 Correct 5 ms 26716 KB Output is correct
31 Correct 5 ms 26868 KB Output is correct
32 Correct 5 ms 26972 KB Output is correct
33 Correct 5 ms 26972 KB Output is correct
34 Correct 5 ms 26716 KB Output is correct
35 Correct 5 ms 26972 KB Output is correct
36 Correct 12 ms 27928 KB Output is correct
37 Correct 62 ms 36452 KB Output is correct
38 Correct 65 ms 35784 KB Output is correct
39 Correct 70 ms 35524 KB Output is correct
40 Correct 58 ms 35356 KB Output is correct
41 Correct 64 ms 35012 KB Output is correct
42 Correct 62 ms 34244 KB Output is correct
43 Correct 59 ms 36576 KB Output is correct
44 Correct 64 ms 36684 KB Output is correct
45 Correct 46 ms 32964 KB Output is correct
46 Correct 60 ms 35016 KB Output is correct
47 Correct 18 ms 28292 KB Output is correct
48 Correct 238 ms 40804 KB Output is correct
49 Correct 185 ms 39624 KB Output is correct
50 Correct 168 ms 39536 KB Output is correct
51 Correct 241 ms 39336 KB Output is correct
52 Correct 145 ms 38756 KB Output is correct
53 Correct 122 ms 37320 KB Output is correct
54 Correct 194 ms 40852 KB Output is correct
55 Correct 227 ms 40648 KB Output is correct
56 Correct 227 ms 36724 KB Output is correct
57 Correct 156 ms 39360 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 26716 KB Output is correct
2 Correct 5 ms 22620 KB Output is correct
3 Correct 4 ms 22620 KB Output is correct
4 Correct 4 ms 22872 KB Output is correct
5 Correct 5 ms 22620 KB Output is correct
6 Correct 4 ms 22880 KB Output is correct
7 Correct 4 ms 22872 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 48 ms 32200 KB Output is correct
11 Correct 59 ms 33768 KB Output is correct
12 Correct 50 ms 33476 KB Output is correct
13 Correct 55 ms 33888 KB Output is correct
14 Correct 50 ms 34400 KB Output is correct
15 Correct 45 ms 32456 KB Output is correct
16 Correct 89 ms 37576 KB Output is correct
17 Correct 88 ms 37320 KB Output is correct
18 Correct 91 ms 37980 KB Output is correct
19 Correct 89 ms 38296 KB Output is correct
20 Correct 206 ms 37564 KB Output is correct
21 Correct 171 ms 37380 KB Output is correct
22 Correct 166 ms 37612 KB Output is correct
23 Correct 178 ms 37208 KB Output is correct
24 Correct 174 ms 37568 KB Output is correct
25 Correct 240 ms 37408 KB Output is correct
26 Correct 168 ms 37312 KB Output is correct
27 Correct 160 ms 37348 KB Output is correct
28 Correct 5 ms 26972 KB Output is correct
29 Correct 5 ms 27224 KB Output is correct
30 Correct 5 ms 26972 KB Output is correct
31 Correct 5 ms 26716 KB Output is correct
32 Correct 5 ms 26868 KB Output is correct
33 Correct 5 ms 26972 KB Output is correct
34 Correct 5 ms 26972 KB Output is correct
35 Correct 5 ms 26716 KB Output is correct
36 Correct 5 ms 26972 KB Output is correct
37 Correct 12 ms 27928 KB Output is correct
38 Correct 62 ms 36452 KB Output is correct
39 Correct 65 ms 35784 KB Output is correct
40 Correct 70 ms 35524 KB Output is correct
41 Correct 58 ms 35356 KB Output is correct
42 Correct 64 ms 35012 KB Output is correct
43 Correct 62 ms 34244 KB Output is correct
44 Correct 59 ms 36576 KB Output is correct
45 Correct 64 ms 36684 KB Output is correct
46 Correct 46 ms 32964 KB Output is correct
47 Correct 60 ms 35016 KB Output is correct
48 Correct 18 ms 28292 KB Output is correct
49 Correct 238 ms 40804 KB Output is correct
50 Correct 185 ms 39624 KB Output is correct
51 Correct 168 ms 39536 KB Output is correct
52 Correct 241 ms 39336 KB Output is correct
53 Correct 145 ms 38756 KB Output is correct
54 Correct 122 ms 37320 KB Output is correct
55 Correct 194 ms 40852 KB Output is correct
56 Correct 227 ms 40648 KB Output is correct
57 Correct 227 ms 36724 KB Output is correct
58 Correct 156 ms 39360 KB Output is correct
59 Correct 69 ms 33368 KB Output is correct
60 Correct 211 ms 40764 KB Output is correct
61 Correct 181 ms 40828 KB Output is correct
62 Correct 205 ms 41376 KB Output is correct
63 Correct 190 ms 41360 KB Output is correct
64 Correct 5 ms 26716 KB Output is correct
65 Correct 5 ms 26972 KB Output is correct
66 Correct 5 ms 26972 KB Output is correct
67 Correct 5 ms 26972 KB Output is correct
68 Correct 6 ms 26716 KB Output is correct
69 Correct 5 ms 26972 KB Output is correct
70 Correct 5 ms 26968 KB Output is correct
71 Correct 5 ms 27016 KB Output is correct
72 Correct 5 ms 26864 KB Output is correct
73 Correct 5 ms 26972 KB Output is correct
74 Correct 80 ms 37308 KB Output is correct
75 Correct 59 ms 36036 KB Output is correct
76 Correct 71 ms 36204 KB Output is correct
77 Correct 65 ms 35784 KB Output is correct
78 Correct 60 ms 36104 KB Output is correct
79 Correct 48 ms 33584 KB Output is correct
80 Correct 69 ms 35780 KB Output is correct
81 Correct 96 ms 40700 KB Output is correct
82 Correct 102 ms 40244 KB Output is correct
83 Correct 107 ms 42688 KB Output is correct
84 Correct 48 ms 32968 KB Output is correct
85 Correct 94 ms 39648 KB Output is correct
86 Correct 49 ms 31436 KB Output is correct
87 Correct 188 ms 39876 KB Output is correct
88 Correct 190 ms 39476 KB Output is correct
89 Correct 185 ms 39372 KB Output is correct
90 Correct 132 ms 39104 KB Output is correct
91 Correct 136 ms 39704 KB Output is correct
92 Correct 158 ms 39460 KB Output is correct
93 Correct 221 ms 43280 KB Output is correct
94 Correct 202 ms 43980 KB Output is correct
95 Correct 233 ms 46272 KB Output is correct
96 Correct 185 ms 36724 KB Output is correct
97 Correct 208 ms 41892 KB Output is correct