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Submission #838749

# Submission time Handle Problem Language Result Execution time Memory
838749 2023-08-27T16:39:09 Z TonyStark_456 Swapping Cities (APIO20_swap) C++17
100 / 100
 191 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 2 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 2 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 2 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1752 KB Output is correct
9 Correct 33 ms 19248 KB Output is correct
10 Correct 40 ms 23232 KB Output is correct
11 Correct 43 ms 22860 KB Output is correct
12 Correct 42 ms 24128 KB Output is correct
13 Correct 41 ms 24764 KB Output is correct
14 Correct 51 ms 19652 KB Output is correct
15 Correct 134 ms 27252 KB Output is correct
16 Correct 137 ms 26560 KB Output is correct
17 Correct 141 ms 27996 KB Output is correct
18 Correct 191 ms 28608 KB Output is correct
19 Correct 66 ms 10296 KB Output is correct
20 Correct 133 ms 27328 KB Output is correct
21 Correct 133 ms 26868 KB Output is correct
22 Correct 148 ms 28304 KB Output is correct
23 Correct 179 ms 28956 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1620 KB Output is correct
2 Correct 1 ms 1620 KB Output is correct
3 Correct 157 ms 26500 KB Output is correct
4 Correct 177 ms 27400 KB Output is correct
5 Correct 174 ms 27108 KB Output is correct
6 Correct 165 ms 27276 KB Output is correct
7 Correct 180 ms 27368 KB Output is correct
8 Correct 166 ms 26396 KB Output is correct
9 Correct 169 ms 27120 KB Output is correct
10 Correct 161 ms 26356 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 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 2 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 2 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1752 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 1 ms 1748 KB Output is correct
13 Correct 2 ms 1748 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 1748 KB Output is correct
17 Correct 2 ms 1748 KB Output is correct
18 Correct 1 ms 1748 KB Output is correct
19 Correct 2 ms 1748 KB Output is correct
20 Correct 1 ms 1736 KB Output is correct
21 Correct 1 ms 1748 KB Output is correct
22 Correct 1 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 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1748 KB Output is correct
28 Correct 2 ms 1896 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 2 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 2 ms 1620 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 2 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1752 KB Output is correct
10 Correct 33 ms 19248 KB Output is correct
11 Correct 40 ms 23232 KB Output is correct
12 Correct 43 ms 22860 KB Output is correct
13 Correct 42 ms 24128 KB Output is correct
14 Correct 41 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 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 1748 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 1748 KB Output is correct
25 Correct 1 ms 1736 KB Output is correct
26 Correct 1 ms 1748 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 1876 KB Output is correct
30 Correct 2 ms 1876 KB Output is correct
31 Correct 2 ms 1876 KB Output is correct
32 Correct 2 ms 1748 KB Output is correct
33 Correct 2 ms 1896 KB Output is correct
34 Correct 6 ms 4756 KB Output is correct
35 Correct 46 ms 23872 KB Output is correct
36 Correct 40 ms 23872 KB Output is correct
37 Correct 41 ms 23872 KB Output is correct
38 Correct 40 ms 23488 KB Output is correct
39 Correct 40 ms 23360 KB Output is correct
40 Correct 36 ms 21568 KB Output is correct
41 Correct 41 ms 24124 KB Output is correct
42 Correct 40 ms 23872 KB Output is correct
43 Correct 41 ms 23812 KB Output is correct
44 Correct 43 ms 24128 KB Output is correct
45 Correct 58 ms 23212 KB Output is correct
46 Correct 40 ms 23868 KB Output is correct
47 Correct 41 ms 23744 KB Output is correct
48 Correct 46 ms 23912 KB Output is correct
49 Correct 47 ms 10172 KB Output is correct
50 Correct 41 ms 9536 KB Output is correct
51 Correct 59 ms 19592 KB Output is correct
52 Correct 61 ms 27652 KB Output is correct
53 Correct 69 ms 31424 KB Output is correct
54 Correct 72 ms 29540 KB Output is correct
55 Correct 40 ms 23864 KB Output is correct
56 Correct 72 ms 28140 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 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 2 ms 1620 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 2 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1752 KB Output is correct
9 Correct 33 ms 19248 KB Output is correct
10 Correct 40 ms 23232 KB Output is correct
11 Correct 43 ms 22860 KB Output is correct
12 Correct 42 ms 24128 KB Output is correct
13 Correct 41 ms 24764 KB Output is correct
14 Correct 51 ms 19652 KB Output is correct
15 Correct 134 ms 27252 KB Output is correct
16 Correct 137 ms 26560 KB Output is correct
17 Correct 141 ms 27996 KB Output is correct
18 Correct 191 ms 28608 KB Output is correct
19 Correct 157 ms 26500 KB Output is correct
20 Correct 177 ms 27400 KB Output is correct
21 Correct 174 ms 27108 KB Output is correct
22 Correct 165 ms 27276 KB Output is correct
23 Correct 180 ms 27368 KB Output is correct
24 Correct 166 ms 26396 KB Output is correct
25 Correct 169 ms 27120 KB Output is correct
26 Correct 161 ms 26356 KB Output is correct
27 Correct 1 ms 1748 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 1748 KB Output is correct
32 Correct 1 ms 1748 KB Output is correct
33 Correct 1 ms 1748 KB Output is correct
34 Correct 2 ms 1748 KB Output is correct
35 Correct 1 ms 1748 KB Output is correct
36 Correct 6 ms 4756 KB Output is correct
37 Correct 46 ms 23872 KB Output is correct
38 Correct 40 ms 23872 KB Output is correct
39 Correct 41 ms 23872 KB Output is correct
40 Correct 40 ms 23488 KB Output is correct
41 Correct 40 ms 23360 KB Output is correct
42 Correct 36 ms 21568 KB Output is correct
43 Correct 41 ms 24124 KB Output is correct
44 Correct 40 ms 23872 KB Output is correct
45 Correct 41 ms 23812 KB Output is correct
46 Correct 43 ms 24128 KB Output is correct
47 Correct 13 ms 4840 KB Output is correct
48 Correct 156 ms 27736 KB Output is correct
49 Correct 135 ms 27712 KB Output is correct
50 Correct 129 ms 27652 KB Output is correct
51 Correct 123 ms 27516 KB Output is correct
52 Correct 140 ms 26304 KB Output is correct
53 Correct 110 ms 21420 KB Output is correct
54 Correct 139 ms 28324 KB Output is correct
55 Correct 131 ms 27720 KB Output is correct
56 Correct 191 ms 27712 KB Output is correct
57 Correct 131 ms 28300 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 2 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 2 ms 1620 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 2 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1752 KB Output is correct
10 Correct 33 ms 19248 KB Output is correct
11 Correct 40 ms 23232 KB Output is correct
12 Correct 43 ms 22860 KB Output is correct
13 Correct 42 ms 24128 KB Output is correct
14 Correct 41 ms 24764 KB Output is correct
15 Correct 51 ms 19652 KB Output is correct
16 Correct 134 ms 27252 KB Output is correct
17 Correct 137 ms 26560 KB Output is correct
18 Correct 141 ms 27996 KB Output is correct
19 Correct 191 ms 28608 KB Output is correct
20 Correct 157 ms 26500 KB Output is correct
21 Correct 177 ms 27400 KB Output is correct
22 Correct 174 ms 27108 KB Output is correct
23 Correct 165 ms 27276 KB Output is correct
24 Correct 180 ms 27368 KB Output is correct
25 Correct 166 ms 26396 KB Output is correct
26 Correct 169 ms 27120 KB Output is correct
27 Correct 161 ms 26356 KB Output is correct
28 Correct 1 ms 1748 KB Output is correct
29 Correct 1 ms 1748 KB Output is correct
30 Correct 1 ms 1748 KB Output is correct
31 Correct 2 ms 1748 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 1748 KB Output is correct
35 Correct 2 ms 1748 KB Output is correct
36 Correct 1 ms 1748 KB Output is correct
37 Correct 6 ms 4756 KB Output is correct
38 Correct 46 ms 23872 KB Output is correct
39 Correct 40 ms 23872 KB Output is correct
40 Correct 41 ms 23872 KB Output is correct
41 Correct 40 ms 23488 KB Output is correct
42 Correct 40 ms 23360 KB Output is correct
43 Correct 36 ms 21568 KB Output is correct
44 Correct 41 ms 24124 KB Output is correct
45 Correct 40 ms 23872 KB Output is correct
46 Correct 41 ms 23812 KB Output is correct
47 Correct 43 ms 24128 KB Output is correct
48 Correct 13 ms 4840 KB Output is correct
49 Correct 156 ms 27736 KB Output is correct
50 Correct 135 ms 27712 KB Output is correct
51 Correct 129 ms 27652 KB Output is correct
52 Correct 123 ms 27516 KB Output is correct
53 Correct 140 ms 26304 KB Output is correct
54 Correct 110 ms 21420 KB Output is correct
55 Correct 139 ms 28324 KB Output is correct
56 Correct 131 ms 27720 KB Output is correct
57 Correct 191 ms 27712 KB Output is correct
58 Correct 131 ms 28300 KB Output is correct
59 Correct 66 ms 10296 KB Output is correct
60 Correct 133 ms 27328 KB Output is correct
61 Correct 133 ms 26868 KB Output is correct
62 Correct 148 ms 28304 KB Output is correct
63 Correct 179 ms 28956 KB Output is correct
64 Correct 2 ms 1748 KB Output is correct
65 Correct 1 ms 1736 KB Output is correct
66 Correct 1 ms 1748 KB Output is correct
67 Correct 1 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 1876 KB Output is correct
71 Correct 2 ms 1876 KB Output is correct
72 Correct 2 ms 1748 KB Output is correct
73 Correct 2 ms 1896 KB Output is correct
74 Correct 58 ms 23212 KB Output is correct
75 Correct 40 ms 23868 KB Output is correct
76 Correct 41 ms 23744 KB Output is correct
77 Correct 46 ms 23912 KB Output is correct
78 Correct 47 ms 10172 KB Output is correct
79 Correct 41 ms 9536 KB Output is correct
80 Correct 59 ms 19592 KB Output is correct
81 Correct 61 ms 27652 KB Output is correct
82 Correct 69 ms 31424 KB Output is correct
83 Correct 72 ms 29540 KB Output is correct
84 Correct 40 ms 23864 KB Output is correct
85 Correct 72 ms 28140 KB Output is correct
86 Correct 43 ms 10696 KB Output is correct
87 Correct 121 ms 27740 KB Output is correct
88 Correct 127 ms 27992 KB Output is correct
89 Correct 156 ms 26528 KB Output is correct
90 Correct 119 ms 14200 KB Output is correct
91 Correct 125 ms 15336 KB Output is correct
92 Correct 146 ms 23280 KB Output is correct
93 Correct 146 ms 31292 KB Output is correct
94 Correct 165 ms 34488 KB Output is correct
95 Correct 169 ms 33392 KB Output is correct
96 Correct 183 ms 27712 KB Output is correct
97 Correct 166 ms 30076 KB Output is correct