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Submission #832444

# Submission time Handle Problem Language Result Execution time Memory
832444 2023-08-21T10:24:45 Z Antekb Swapping Cities (APIO20_swap) C++17
100 / 100
 229 ms 34488 KB 
#include<bits/stdc++.h>
#include "swap.h"
#define st first
#define nd second
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define eb emplace_back
#define pp pop_back
#define mp make_pair
using namespace std;
using pii = pair<int, int>;
using ll = long long;
using vi = vector<int>;
using vii = vector<pii>;
void debug(){cerr<<"\n";}
template<typename H, typename... T>
void debug(H h, T... t){
	cerr<<h;
	if(sizeof...(t)){
		cerr<<", ";
	}
	debug(t...);
}
#define deb(x...) cerr<<#x<<" = ";debug(x);

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int K=18, N=3e5+5;
int r[N], par[K][N], tim[N], czy[N], deg[N], nxt[N], dep[N];
int find(int v){
	if(r[v]==v)return v;
	return r[v]=find(r[v]);
}
void init(int n, int m, std::vector<int> uu, std::vector<int> vv, std::vector<int> ww) {
	vector<pair<int, pii> > edg;
	for(int i=0; i<m; i++){
		edg.eb(ww[i], mp(uu[i], vv[i]));
	}
	sort(all(edg));
	for(int i=0; i<N; i++){
		r[i]=i;
	}
	int wsk=n;
	for(int ii=0; ii<m; ii++){
		int u=edg[ii].nd.st, v=edg[ii].nd.nd, w=edg[ii].st;
		deg[u]++;
		deg[v]++;
		bool b=(deg[u]>=3||deg[v]>=3);
		u=find(u);
		v=find(v);
		if(u==v && !czy[u]){
			par[0][u]=r[u]=wsk;
			tim[wsk]=w;
			czy[wsk]=1;
			wsk++;
		}
		if(u!=v){
			par[0][u]=r[u]=wsk;
			par[0][v]=r[v]=wsk;
			tim[wsk]=w;
			czy[wsk]=(b||czy[u]||czy[v]);
			wsk++;
		}
	}
	par[0][wsk-1]=wsk-1;
	for(int k=1; k<K; k++){
		for(int i=0; i<wsk; i++){
			par[k][i]=par[k-1][par[k-1][i]];
		}
	}
	for(int i=wsk-1; i>=0; i--){
		if(czy[i])nxt[i]=tim[i];
		else{
			if(par[0][i]==i)nxt[i]=1e9+5;
			else nxt[i]=nxt[par[0][i]];
		}
		if(par[0][i]!=i)dep[i]=dep[par[0][i]]+1;
	}
	for(int i=0; i<wsk; i++){
		//deb(i, par[0][i], czy[i], tim[i], nxt[i], dep[i]);
	}
}
int lca(int u, int v){
	if(dep[u]>dep[v])swap(u, v);
	for(int i=K-1; i>=0; i--){
		if(dep[u]+(1<<i)<=dep[v])v=par[i][v];
	}
	if(u==v)return u;
	for(int i=K-1; i>=0; i--){
		if(par[i][v]!=par[i][u]){
			v=par[i][v];
			u=par[i][u];
		}
	}
	return par[0][u];
}
int getMinimumFuelCapacity(int X, int Y) {
	if(X==Y)return 0;
	int Z=lca(X, Y);
	if(nxt[Z]==1e9+5)return -1;
	else return nxt[Z];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 1 ms 1596 KB Output is correct
4 Correct 1 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 34 ms 19280 KB Output is correct
10 Correct 53 ms 23164 KB Output is correct
11 Correct 40 ms 22908 KB Output is correct
12 Correct 43 ms 24112 KB Output is correct
13 Correct 42 ms 24764 KB Output is correct
14 Correct 42 ms 19660 KB Output is correct
15 Correct 140 ms 27312 KB Output is correct
16 Correct 141 ms 26632 KB Output is correct
17 Correct 158 ms 28016 KB Output is correct
18 Correct 229 ms 28640 KB Output is correct
19 Correct 60 ms 10204 KB Output is correct
20 Correct 189 ms 27300 KB Output is correct
21 Correct 149 ms 26976 KB Output is correct
22 Correct 139 ms 28296 KB Output is correct
23 Correct 192 ms 28936 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 181 ms 26476 KB Output is correct
4 Correct 159 ms 27380 KB Output is correct
5 Correct 188 ms 27176 KB Output is correct
6 Correct 180 ms 27280 KB Output is correct
7 Correct 165 ms 27324 KB Output is correct
8 Correct 158 ms 26480 KB Output is correct
9 Correct 186 ms 27012 KB Output is correct
10 Correct 172 ms 26320 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 1 ms 1596 KB Output is correct
4 Correct 1 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1620 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 1 ms 1748 KB Output is correct
12 Correct 2 ms 1748 KB Output is correct
13 Correct 1 ms 1736 KB Output is correct
14 Correct 1 ms 1748 KB Output is correct
15 Correct 1 ms 1748 KB Output is correct
16 Correct 1 ms 1728 KB Output is correct
17 Correct 1 ms 1748 KB Output is correct
18 Correct 2 ms 1748 KB Output is correct
19 Correct 1 ms 1748 KB Output is correct
20 Correct 1 ms 1748 KB Output is correct
21 Correct 1 ms 1732 KB Output is correct
22 Correct 2 ms 1748 KB Output is correct
23 Correct 1 ms 1748 KB Output is correct
24 Correct 2 ms 1876 KB Output is correct
25 Correct 2 ms 1900 KB Output is correct
26 Correct 1 ms 1876 KB Output is correct
27 Correct 2 ms 1748 KB Output is correct
28 Correct 1 ms 1876 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 1 ms 1620 KB Output is correct
4 Correct 1 ms 1596 KB Output is correct
5 Correct 1 ms 1620 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 34 ms 19280 KB Output is correct
11 Correct 53 ms 23164 KB Output is correct
12 Correct 40 ms 22908 KB Output is correct
13 Correct 43 ms 24112 KB Output is correct
14 Correct 42 ms 24764 KB Output is correct
15 Correct 1 ms 1748 KB Output is correct
16 Correct 1 ms 1748 KB Output is correct
17 Correct 2 ms 1748 KB Output is correct
18 Correct 1 ms 1736 KB Output is correct
19 Correct 1 ms 1748 KB Output is correct
20 Correct 1 ms 1748 KB Output is correct
21 Correct 1 ms 1728 KB Output is correct
22 Correct 1 ms 1748 KB Output is correct
23 Correct 2 ms 1748 KB Output is correct
24 Correct 1 ms 1748 KB Output is correct
25 Correct 1 ms 1748 KB Output is correct
26 Correct 1 ms 1732 KB Output is correct
27 Correct 2 ms 1748 KB Output is correct
28 Correct 1 ms 1748 KB Output is correct
29 Correct 2 ms 1876 KB Output is correct
30 Correct 2 ms 1900 KB Output is correct
31 Correct 1 ms 1876 KB Output is correct
32 Correct 2 ms 1748 KB Output is correct
33 Correct 1 ms 1876 KB Output is correct
34 Correct 9 ms 4756 KB Output is correct
35 Correct 55 ms 23888 KB Output is correct
36 Correct 50 ms 23848 KB Output is correct
37 Correct 41 ms 23868 KB Output is correct
38 Correct 41 ms 23472 KB Output is correct
39 Correct 40 ms 23356 KB Output is correct
40 Correct 37 ms 21568 KB Output is correct
41 Correct 42 ms 24112 KB Output is correct
42 Correct 41 ms 23872 KB Output is correct
43 Correct 40 ms 23868 KB Output is correct
44 Correct 42 ms 24144 KB Output is correct
45 Correct 63 ms 23196 KB Output is correct
46 Correct 40 ms 23872 KB Output is correct
47 Correct 45 ms 23744 KB Output is correct
48 Correct 50 ms 24004 KB Output is correct
49 Correct 51 ms 10172 KB Output is correct
50 Correct 38 ms 9440 KB Output is correct
51 Correct 53 ms 19604 KB Output is correct
52 Correct 64 ms 27596 KB Output is correct
53 Correct 74 ms 31444 KB Output is correct
54 Correct 85 ms 29492 KB Output is correct
55 Correct 41 ms 23816 KB Output is correct
56 Correct 73 ms 28184 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 1 ms 1596 KB Output is correct
4 Correct 1 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 34 ms 19280 KB Output is correct
10 Correct 53 ms 23164 KB Output is correct
11 Correct 40 ms 22908 KB Output is correct
12 Correct 43 ms 24112 KB Output is correct
13 Correct 42 ms 24764 KB Output is correct
14 Correct 42 ms 19660 KB Output is correct
15 Correct 140 ms 27312 KB Output is correct
16 Correct 141 ms 26632 KB Output is correct
17 Correct 158 ms 28016 KB Output is correct
18 Correct 229 ms 28640 KB Output is correct
19 Correct 181 ms 26476 KB Output is correct
20 Correct 159 ms 27380 KB Output is correct
21 Correct 188 ms 27176 KB Output is correct
22 Correct 180 ms 27280 KB Output is correct
23 Correct 165 ms 27324 KB Output is correct
24 Correct 158 ms 26480 KB Output is correct
25 Correct 186 ms 27012 KB Output is correct
26 Correct 172 ms 26320 KB Output is correct
27 Correct 1 ms 1748 KB Output is correct
28 Correct 1 ms 1748 KB Output is correct
29 Correct 2 ms 1748 KB Output is correct
30 Correct 1 ms 1736 KB Output is correct
31 Correct 1 ms 1748 KB Output is correct
32 Correct 1 ms 1748 KB Output is correct
33 Correct 1 ms 1728 KB Output is correct
34 Correct 1 ms 1748 KB Output is correct
35 Correct 2 ms 1748 KB Output is correct
36 Correct 9 ms 4756 KB Output is correct
37 Correct 55 ms 23888 KB Output is correct
38 Correct 50 ms 23848 KB Output is correct
39 Correct 41 ms 23868 KB Output is correct
40 Correct 41 ms 23472 KB Output is correct
41 Correct 40 ms 23356 KB Output is correct
42 Correct 37 ms 21568 KB Output is correct
43 Correct 42 ms 24112 KB Output is correct
44 Correct 41 ms 23872 KB Output is correct
45 Correct 40 ms 23868 KB Output is correct
46 Correct 42 ms 24144 KB Output is correct
47 Correct 13 ms 4820 KB Output is correct
48 Correct 162 ms 27720 KB Output is correct
49 Correct 143 ms 27740 KB Output is correct
50 Correct 176 ms 27708 KB Output is correct
51 Correct 125 ms 27472 KB Output is correct
52 Correct 119 ms 26260 KB Output is correct
53 Correct 141 ms 21436 KB Output is correct
54 Correct 159 ms 28300 KB Output is correct
55 Correct 138 ms 27664 KB Output is correct
56 Correct 182 ms 27716 KB Output is correct
57 Correct 133 ms 28360 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 1 ms 1620 KB Output is correct
4 Correct 1 ms 1596 KB Output is correct
5 Correct 1 ms 1620 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 34 ms 19280 KB Output is correct
11 Correct 53 ms 23164 KB Output is correct
12 Correct 40 ms 22908 KB Output is correct
13 Correct 43 ms 24112 KB Output is correct
14 Correct 42 ms 24764 KB Output is correct
15 Correct 42 ms 19660 KB Output is correct
16 Correct 140 ms 27312 KB Output is correct
17 Correct 141 ms 26632 KB Output is correct
18 Correct 158 ms 28016 KB Output is correct
19 Correct 229 ms 28640 KB Output is correct
20 Correct 181 ms 26476 KB Output is correct
21 Correct 159 ms 27380 KB Output is correct
22 Correct 188 ms 27176 KB Output is correct
23 Correct 180 ms 27280 KB Output is correct
24 Correct 165 ms 27324 KB Output is correct
25 Correct 158 ms 26480 KB Output is correct
26 Correct 186 ms 27012 KB Output is correct
27 Correct 172 ms 26320 KB Output is correct
28 Correct 1 ms 1748 KB Output is correct
29 Correct 1 ms 1748 KB Output is correct
30 Correct 2 ms 1748 KB Output is correct
31 Correct 1 ms 1736 KB Output is correct
32 Correct 1 ms 1748 KB Output is correct
33 Correct 1 ms 1748 KB Output is correct
34 Correct 1 ms 1728 KB Output is correct
35 Correct 1 ms 1748 KB Output is correct
36 Correct 2 ms 1748 KB Output is correct
37 Correct 9 ms 4756 KB Output is correct
38 Correct 55 ms 23888 KB Output is correct
39 Correct 50 ms 23848 KB Output is correct
40 Correct 41 ms 23868 KB Output is correct
41 Correct 41 ms 23472 KB Output is correct
42 Correct 40 ms 23356 KB Output is correct
43 Correct 37 ms 21568 KB Output is correct
44 Correct 42 ms 24112 KB Output is correct
45 Correct 41 ms 23872 KB Output is correct
46 Correct 40 ms 23868 KB Output is correct
47 Correct 42 ms 24144 KB Output is correct
48 Correct 13 ms 4820 KB Output is correct
49 Correct 162 ms 27720 KB Output is correct
50 Correct 143 ms 27740 KB Output is correct
51 Correct 176 ms 27708 KB Output is correct
52 Correct 125 ms 27472 KB Output is correct
53 Correct 119 ms 26260 KB Output is correct
54 Correct 141 ms 21436 KB Output is correct
55 Correct 159 ms 28300 KB Output is correct
56 Correct 138 ms 27664 KB Output is correct
57 Correct 182 ms 27716 KB Output is correct
58 Correct 133 ms 28360 KB Output is correct
59 Correct 60 ms 10204 KB Output is correct
60 Correct 189 ms 27300 KB Output is correct
61 Correct 149 ms 26976 KB Output is correct
62 Correct 139 ms 28296 KB Output is correct
63 Correct 192 ms 28936 KB Output is correct
64 Correct 1 ms 1748 KB Output is correct
65 Correct 1 ms 1748 KB Output is correct
66 Correct 1 ms 1732 KB Output is correct
67 Correct 2 ms 1748 KB Output is correct
68 Correct 1 ms 1748 KB Output is correct
69 Correct 2 ms 1876 KB Output is correct
70 Correct 2 ms 1900 KB Output is correct
71 Correct 1 ms 1876 KB Output is correct
72 Correct 2 ms 1748 KB Output is correct
73 Correct 1 ms 1876 KB Output is correct
74 Correct 63 ms 23196 KB Output is correct
75 Correct 40 ms 23872 KB Output is correct
76 Correct 45 ms 23744 KB Output is correct
77 Correct 50 ms 24004 KB Output is correct
78 Correct 51 ms 10172 KB Output is correct
79 Correct 38 ms 9440 KB Output is correct
80 Correct 53 ms 19604 KB Output is correct
81 Correct 64 ms 27596 KB Output is correct
82 Correct 74 ms 31444 KB Output is correct
83 Correct 85 ms 29492 KB Output is correct
84 Correct 41 ms 23816 KB Output is correct
85 Correct 73 ms 28184 KB Output is correct
86 Correct 42 ms 10612 KB Output is correct
87 Correct 124 ms 27788 KB Output is correct
88 Correct 135 ms 27696 KB Output is correct
89 Correct 158 ms 26488 KB Output is correct
90 Correct 116 ms 14152 KB Output is correct
91 Correct 122 ms 15292 KB Output is correct
92 Correct 163 ms 23232 KB Output is correct
93 Correct 147 ms 31396 KB Output is correct
94 Correct 157 ms 34488 KB Output is correct
95 Correct 168 ms 33444 KB Output is correct
96 Correct 221 ms 27736 KB Output is correct
97 Correct 165 ms 30008 KB Output is correct